w681308 Winbond Electronics Corp America, w681308 Datasheet
w681308
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w681308 Summary of contents
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... XXXX PRODUCT DESCRIPTION W681308 USB AUDIO CONTROLLER Data Sheet Revision 1.2 W681308 ...
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... OWER ANAGEMENT 8 .................................................................................................................................................. 23 ESET ONDITIONS 8.4.1 External Reset ................................................................................................................................................... 23 8.4.2 Watchdog Reset ................................................................................................................................................ 23 8.5 I ............................................................................................................................................................. 23 NTERRUPTS 8 ROGRAMMING IMERS AND OUNTERS 8.6.1 Timers/Counters 0 and 1 ................................................................................................................................... 24 8.6.2 Timer/Counter 2................................................................................................................................................. 25 XXXX PRODUCT DESCRIPTION ....................................................................................................................... 13 .............................................................................................................................. 13 R ......................................................................................... 13 ONTROL EGISTERS R ............................................................................................................ 14 EGISTERS .................................................................................................................. 16 EGISTERS C (AEC CHO ANCELLATION ONTROL EGISTERS ..................................................................................................................... 24 2 W681308 ........................................................ 16 Rev1.2 ...
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... ATH 13 ICROPHONE NTERFACE AND UXILIARY 14. SERIAL PERIPHERAL INTERFACE.......................................................................................................................... 47 14.1 O ............................................................................................................................................................... 47 VERVIEW 14 SPI............................................................................................................................ 47 ATA AND IGNAL ORMAT OF 14.3 FSM SPI ............................................................................................................................................................ 47 OF 14.4 FIFO RAM SPI ............................................................................................................................................ 48 AND OF 14 ................................................................................................................................................ 48 NTERRUPT OURCES 15. NUVOTON 2-WIRE SERIAL BUS.............................................................................................................................. 49 XXXX PRODUCT DESCRIPTION .............................................................................................................................. 32 S ....................................................................................................... 39 ETTING .............................................................................................................................. 42 I ................................................................................................... 44 NTERFACE 3 W681308 Rev1.2 ...
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... USB PHY E C LECTRONIC HARACTERISTICS 20.8 USB PLL E C LECTRONIC HARACTERISTICS 21. TYPICAL APPLICATION REFERENCE CIRCUIT ..................................................................................................... 61 21.1 USB SPEAKER PHONE APPLICATION 22. PACKAGE DIMENSIONS .......................................................................................................................................... 62 23. ORDERING INFORMATION ...................................................................................................................................... 63 24. REVISION HISTORY ................................................................................................................................................. 64 XXXX PRODUCT DESCRIPTION .......................................................................................................................... 49 ................................................................................................................................ 51 ................................................................................................................... 55 ................................................................................................................. 56 P ........................................................................................................... 57 ARAMETERS R ............................................................................................................ 58 EGULATOR ( 25°C, DVDD= 3.3V, VDDL =1.8V) ......................................................... 59 .................................................................................................................. 60 ................................................................................................................... 61 4 W681308 Rev1.2 ...
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... Figure 4 Keypad Scanning Application Circuit........................................................................................................................ 33 Figure 5 PCM Interface, Gain Stage and Mixer Location ....................................................................................................... 36 Figure 6 Mixer Connection Case Examples ........................................................................................................................... 37 Figure 7 Mixer Examples with Registers Setting .................................................................................................................... 39 Figure 8 W681308 CODEC Signal Path Control .................................................................................................................... 43 Figure 9 Microphone Voltage Gain Mode ............................................................................................................................... 45 Figure 10 Microphone Current Gain Mode ............................................................................................................................. 45 Figure 11 Microphone Auxiliary Input Mode ........................................................................................................................... 46 Figure 12 SPI Block Diagram ...
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... VoIP devices such as Skype® , other IM and SIP-based application. With Nuvoton’s market proven CODEC product experience, W681308 is designed to provide high audio quality in VoIP and audio devices applications and deliver USB Audio/VoIP solution with the shortest time to market, time to volume and time to profit 2 ...
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... USB audio peripheral box/ USB sound card USB microphone / USB mono headset Wired and Wireless USB VoIP phone with LCD USB VoIP ATA and Gateway PSTN and USB VoIP dual phone General USB MCU and audio application XXXX PRODUCT DESCRIPTION 7 W681308 Rev1.2 ...
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... Pin Configuration GPIO14/UARTT(nTRST) 1 GPIO13/UARTR(TMS DGND 4 XTALO XTALI 5 6 VDDL DVDD DGND 10 11 GPIO3/LED GPIO0(TCK) 12 XXXX PRODUCT DESCRIPTION W681308 48 Pin LQFP Figure 1 Pin diagram 8 W681308 36 VREF1 35 VREF2 34 MCP 33 MCO RGND 32 31 AGND 30 SPP 29 EARP 28 AVDD 27 EARN SPN 26 AGND 25 Rev1.2 ...
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... Serial port data out (SPI flash/ SPI) /GPIO 8 LCD, LCM chip select /GPIO 12 PCM Frame Sync output /GPIO 7 PCM Bit Clock output or input / GPIO 6 Serial PCM Receive data input / GPIO 4 Serial PCM Transmit data output / GPIO 5 JTAG Data Input / GPIO 1 9 W681308 Driver Pin Type Strength D I ...
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... Keypad column X4 connection /GPIO 19 Keypad column X3 connection /GPIO 18 Keypad column X2 connection /GPIO 17 Keypad column X1 connection /GPIO 16 Keypad column X0 connection /GPIO 15 Tie to DGND for normal operation. Tie to DVDD to enable JTAG function. Table 1 Pin Description 10 W681308 Driver Pin Type Strength D I — ...
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... Turbo 8051 MCU, registers, OTP/RAM memory and peripheral ports 16-bit audio quality CODEC with AEC/AGC USB 2.0 FS interface with SIE, Full Speed PHY and 6 end points SPI / UART / I2C / PCM / I2S and GPIO interfaces. XXXX PRODUCT DESCRIPTION Figure 2 W681308 Function Block Diagram 11 W681308 Rev1.2 ...
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... W2S Control Registers 16 5 Ring Tone(PWM) Control Registers 128 120 Full/Half Duplex AEC Control Registers 128 16 AGC Control Registers 512 57 USB Control Registers 1024 1024 USB RAM Based Descriptor Field 2048 2048 Full Duplex AEC RAM 1024 1024 System RAM 12 W681308 Function Rev1.2 ...
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... Indicate Keypad I/O(GPIO [24:15]) and GPIO [14:0] pin R/W 0x00 status Select Keypad I/O(GPIO [24:15]) and GPIO [14:0] R/W 0x00 Input/Output Direction Enable/Disable Keypad I/O(GPIO [24:15]) and GPIO R/W 0x00 [14:0] Interrupt Enable/Disable LCD data, clock and chip selection R/W 0x00 control. R/W 0x00 Enable/Disable UART I/O control. 13 W681308 Function Function Function Rev1.2 ...
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... Set Digital DAC Path Gain 0x00 R/W 0x00 Set microphone bias voltage and bias resistor reference R/W 0x00 Select MIC interface mode and Set microphone gain Attenuate speaker phone/ earphone speaker and Set R/W 0x00 speaker gain R/W 0x00 Enable/Disable CODEC Analog Block 14 W681308 Function Rev1.2 ...
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... Indicate W2S FIFO space and ACK signal status R/W 0x00 Indicate W2S FIFO read pointer R/W 0x00 Indicate W2S FIFO write pointer Set ACK failure detect and indicate failure data pointer R/W 0x00 in FIFO Indicate status for SCL_in, finite state machine state R/W 0x00 and interrupt signal status 15 W681308 Rev1.2 ...
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... R 0x0F Set AEC Divergence threshold Set time constant for long term power estimation of R/W 0x09 Voice Detect Set time constant for short term power estimation of R/W 0x0B Voice Detect Set hangover time window of Voice Detect detection R/W 0x0009 algorithm 16 W681308 Rev1.2 ...
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... Set maximum R/W 0x1CA8 suppression (AS2) algorithm Set noise suppressor gain index and short term power R/W 0xBB time constant Set time constant for rise and fall of noise suppressor R/W 0xBB gain index 17 W681308 attenuation value for acoustic attenuation value for acoustic Rev1.2 ...
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... Set AGC Noise low threshold level R/W 0x0000 Set AGC Noise high threshold level Value At Mode Reset R/W 0x00 Enable/Disable USB 1.1 function control R/W 0x00 Set USB endpoints interrupt enable, status and clear. R/W 0x00 Set USB endpoints interrupt enable, status and clear. 18 W681308 Function Rev1.2 ...
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... Set Bulk In Endpoint control register W 0x00 Set Bulk In transmission data register except final data. W 0x00 Set Bulk In transmission final data register. R 0x00 Indicate Bulk In transmission data FIFO empty flag. R/W 0x00 Set Bulk Out Endpoint control register 19 W681308 Function rd Token byte is not equal rd byte Rev1.2 ...
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... ISO OUT FIFO depth indication R 0x00 ISO IN FIFO depth indication R/W 0x00 ISO IN data sample will be written by MCU R 0x00 ISO IN data sample will be read by MCU R/W 0x00 USB Descriptor R/W 0x00 HID Control-IN data field R/W 0x00 HID Interrupt-IN data field R/W 0x00 HID Control-OUT data field 20 W681308 Function Rev1.2 ...
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... Some Special Function Registers (SFRs) can only be accessed by direct addressing Indirect RAM Addressing Addressing only Direct&Indirect Addressing 0 0 XXXX PRODUCT DESCRIPTION SFRs Direct Byte RAM W681308 Byte OPT Internal ROM Rev1.2 ...
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... Power Management The W681308 has IDLE mode operation features that manage and save power consumption of the device. Enable IDLE mode The user can set the device into idle mode by writing 1 to the PCON bit of SFR. The instruction that sets the idle bit is the last instruction that will be executed before the device goes into Idle Mode. In the Idle mode, the clock to the MCU is halted but not to the Interrupt, Timer, Watchdog timer, and Serial ports blocks. This forces the MCU state to be frozen ...
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... The software must reset the Watchdog timer in order to preempt the reset which will occur after 512 clock periods of the time-out. When the W681308 is exiting from an idle mode with a reset, the instruction following the one which put the device into idle mode is not executed. So there is no danger of unexpected writes ...
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... Programming Timers and Counters The MCU of W681308 has three 16-bit programmable timers/counters and one programmable Watchdog timer. The Watchdog timer is operationally quite different from the other three timers. Timers/Counters 0 and 1 8.6.1 Timer 0 (TM0) and Timer 1 (TM1) are 16-bit Timer/Counters and are nearly identical. Each of these Timers/Counters has two 8 bit registers which form the 16 bit counting register ...
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... Every time the time-out occurs an interrupt will occur if the global interrupt enable EA is set. XXXX PRODUCT DESCRIPTION Bit 5 Bit 4 Bit T2CR RCLK TCLK EXEN2 WD1, Time-out Enable Watchdog timer reset EWT(WDCON.1) 25 W681308 Bit 2 Bit 1 Bit DCEN TR2 C/T2 CP/RL2 WDIF Interru EWD(EIE WTRF 512 Res clock delay et Rev1.2 ...
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... Hardware will set this bit when the watchdog timer causes a reset. Software can read it but must clear it manually. A power-fail reset will also clear the bit. This bit helps software in determining the cause of a reset. If EWT = 0, the watchdog timer will have no affect on this bit. 26 W681308 Time@24MHz Time@48MHz 349.53 ms 174.76 ms 1398 ...
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... EWDI (EIE.4) is set, and 512 clocks after that a watchdog timer reset will be generated if EWT is set. This bit is self-clearing. Table 8 Watchdog Control Bits WD0 Interrupt time-out Table 9 Watchdog Timer Timeout Control 27 W681308 Reset time-out 512 512 512 512 Rev1.2 ...
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... SM1 8.8 OTP ROM The W681308 internal OTP ROM is designed to store all application firmware. 8kB One-Time Programmable Logic Device The OTP programming is done by the injection of hot electrons which are generated by avalanche impact ionization in the bit cell. User can enter JTAG mode to program 8k OTP ROM through JTAG interface pins and signal of PCMT pin will go high simultaneously ...
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... Rf = 1MΩ, R1=270Ω, C1 and C2 are to be 33pf each. XTAL_IN The PLL block diagram is shown below. The PLL uses the output of the crystal oscillator as its reference clock and generate a 48 MHz clock. XXXX PRODUCT DESCRIPTION XTAL_OUT Rf R1 External C2 C1 Crystal 29 W681308 Rev1.2 ...
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... MCU Rate Select [7:6] XXXX PRODUCT DESCRIPTION Value At Reset 0x00 Bit 4 Bit 3 Bit 2 Reserved Reserved Reserved MCU Clock Rate select (default = MHz , Use for CODEC/AEC/USB Controller MHz MHz , Use for MCU/USB PHY/Peripherals 11 = Reserved 30 W681308 Bit 1 Bit 0 Reserved Reserved Rev1.2 ...
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... W2S interrupt USB interrupt Three registers control the generation of interrupts in the W681308, the interrupt source register, the interrupt enable register and the interrupt priority register. Each interrupt has a corresponding bit in these three registers. The interrupt source register is set when an interrupt event occurs and is cleared by MCU. ...
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... Read Interrupt Interrupt (0x1441) Write Clear Interrupt Enable Register 1 = Enable (0x1442 Disable Interrupt Priority Register 0 = INT0 (0x1443 INT1 XXXX PRODUCT DESCRIPTION Value At Reset 0x00 Bit 5 Bit 4 Bit 3 Keypad- GPIO Wakeup NFS Interrupt Reserved Interrupt Interrupt 32 W681308 Bit 2 Bit 1 Bit 0 Reserved Rev1.2 ...
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... Figure 4 Keypad Scanning Application Circuit XXXX PRODUCT DESCRIPTION vered in this section. ted in a row/column arrangement as shown in pin KY[4:0] is pull-H, User can follow below steps to scan the keypad S10 S13 S14 S15 S18 S19 S20 S23 S24 S25 KX[3] KX[4] 33 W681308 KY[4:0] status, MCU KY[0] KY[1] KY[2] KY[3] KY[4] Rev1.2 ...
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... GPIO s W681308 has 25 GPIO pins that are mainly used for keypad scanner, LCM controller, SPI, W2S, PCM interface, UART port, JTAG interface and GPIO s. NOTE: The pin func tion for LED, CS, SCLK, SDI, SDO and CSL will act as different functions according to the setting of ...
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... XXXX PRODUCT DESCRIPTION Value At Reset 0x00 Bit 4 Bit 3 Bit 2 Reserved LCD_ENB LCD _CSN Se lect Enable (active low) _CK N Value At Reset 0x00 Bit 4 Bit 3 Bit 2 Reserved Reserved Reserved Ena ble Control Enable Disab le 35 W681308 Bit 1 Bit 0 LCD_CKN LCD_TX Bit 1 Bit 0 Reserved Reserved Rev1.2 ...
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... The Figure 5 is shown the location of these digital gain stages. There are 2 side tone paths to select from before AEC block, one after AEC block. Side tone gain stage is from -0.5dB to -31.5dB with 0.5dB step. Figure 5 PCM Interface, Gain Stage and Mixer Location XXXX PRODUCT DESCRIPTION M Hz. : 8K, 16K and 48K Hz. 36 W681308 Rev1.2 ...
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... The mixer provides flexible connections among CODEC block, PCM interface and USB block. We will describe each connection case of mixer modes and how to configure them below. 1 2.4 Connection Case Example Figure 6 Mixer Connection Case Examples Case 0: Link CODEC and USB C ase 1: Link CODEC and PCM XXXX PRODUCT DESCRIPTION 37 W681308 Rev1.2 ...
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... Case 2: Link PCM and USB C ase 3: Link All 1 2.5 XXXX PRODUCT DESCRIPTION 38 W681308 Rev1.2 ...
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... Mixer Examples with Registers Setting C ase 0: Default Register Setting: 0x1460 = 0x80 (Enable Gain Stage, Link CODEC_USB) 0x1470 = 0x00 (Disable PCM) Case 1: Record Conversation Register Setting: 0x1460 = 0x83 (Enable Gain Stage, Link All) 0x1470 = 0x80 (Enable PCM) 0x1474 = 0x02 (Mute PCM_RX) XXXX PRODUCT DESCRIPTION 39 W681308 Rev1.2 ...
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... Gain Stage, Link CODEC_USB) 0x 1470 = 0x80 (Enable PCM) 0x 1474 = 0x02 (Mute PCM_RX) Case 3: Record Message R egister Setting: 0 x1460 = 0xF0 (Enable Gain Stage, Link CODEC_USB, Record_USB) 0x1470 = 0x80 (E nable PCM) 0x1474 = 0x02 (Mute PCM_RX) XXXX PRODUCT DESCRIPTION 40 W681308 Rev1.2 ...
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... PCM) 0x1474 = 0x04 (Mute PCM_TX ) Case 5: Play Conversation 2 Register Setting: 0x1460 = 0x83 (Enable Gain Stage, Link All) 0x1470 = 0x80 (Enable PCM) 0x1474 = 0x04 (Mute PCM_TX) 0 x1464 = 0x40 (Mute CODEC A/D IN) 0x1467 = 0x40 (Mute USB ISO OUT) XXXX PRODUCT DESCRIPTION 41 W681308 Rev1.2 ...
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... Link PCM_USB) 0 x1470 = 0x80 (Enable PCM) 0 x1465 = 0x40 (Mute CODEC D/A OUT) 1 2.6 I2S Register Setting Example T he following example will generate I2S interface format from the W681308 PCM interface for 48KHz Sampling Rate(SR) with 16bits LPCM : 0x14 0x14 70 [2:0] 0x14 70 [4:3] 0x14 70 [7] ...
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... Audio CODEC Signal Path Figure 8 W681308 CODEC Signal Path Control Transmit Path Operation The microphone is biased through pins MCP by an internal programmable voltage reference and programmable resistor. The microphone ac signal is gained up by the input amplifier and filtered to prevent aliasing at the input of the sigma delta ADC. ...
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... The digital CODEC filter chain is so designed that it can handle 48K, 16K and 8K rate through its rate change filters. 13.3 Microphone Interface and Auxiliary Interface W681308 integrates a fully programmable microphone interface. No external components other than the microphone are required to operate the circuit. The microphone interface can operate in three modes: Voltage gain mode ...
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... Figure 10 Microphone Current Gain Mode 45 W681308 W681308 W681308 0x1489 0x1489 To ADC To ADC R R INT INT INT INT 2 2 '000' '000' W681308 W681308 0x1489 0x1489 To ADC To ADC V V ADC ADC = = − − 250) 250) EXT EXT 011 011 ' ...
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... MIC_MODE[2:0]=‘101’ =‘0100’ =‘0100’ MIC_GAIN[7:4] MIC_GAIN[7:4] 0x1489 0x1489 Rinternal Rinternal 0x1489 0x1489 250 Ohm 250 Ohm Figure 11 Microphone Auxiliary Input Mode 46 W681308 W681308 W681308 0x1489 0x1489 To ADC To ADC + + 250 250 ADC ADC EXT EXT = = − − ...
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... Serial Peripheral Interface 14.1 Overview W681308 built in a serial p eripheral interface (SPI) port which is a 4-pin (SCLK, CS, SDI, SDO) SPI Interface. This SPI in terface makes W681308 a n easy to control 4-pin SPI device including SPI data flash, SPI LCM, Nuvoton Pro-X SLIC CODEC etc. This device has various clock speed and data format by setting relative control registers. The S be operated at clock rates MCU clock rate ...
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... TX/RX finish interrupt W hen TX/RX byte counts (0x14AD) = DATA_LEN. Middle flag interrupt When TX/RX byte coun ts (0x14AD INTR_CNT (0x14A3[7:4]). For any other options, refer to the description of the specific registers in W681308 Design Guide. XXXX PRODUCT DESCRIPTION IDLE DATA CMD will automatic put receive data from ADDR: 0x80 instead of the ADDR: 0x00 x14AC) with hardware control the memory read/write address, and increase the setting the read (0x14AF)/write (0x14AE) pointer first ...
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... Overview The W681308 MCU on-chip debugger function follows the JTAG standard. It provides 8 sets of breakpoints. There is no watchpoint. There are five JTAG-style scan chains within the 8051 and peripheral logic, which enable embedded ICE logic. The 5 JTAG interface pins TCK (JTAG test clock input), TMS (JTAG test data output) and nTR ST (JTAG TAG controller reset) are needed to enable the operation ...
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... Figure 13. XXXX PRODUCT DESCRIPTION Functional description r state is in Halt mode. No any state changed × × Figure 13 Ring Tone Generator Block 50 W681308 here are two tone signals can be nerator with the PWM (Pulse Width 1 ~ 256 Rev1.2 ...
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... The AEC unit removes the echo signal caused by the speaker and room reflections. 18.1 F unction Cont rol Registers 14 F igure illustrates the block diag ram of the Full/Half Acoustics Echo Cancellation Figure 14 Signal flow through Acoustic Echo Cancellation in the speech processor XXXX PRODUCT DESCRIPTION 51 W681308 Rev1.2 ...
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... The USB module supports all transfer types (Control, Bulk In, Bulk Out, Interrupt In, Isochronous In, Isochronous Out and ISO-SYNC) in USB 1.1 spec and W681308 USB embeds 6 Endpoints include Control Endpoint 0. The default descriptors are stored in the programmable 512x8 Bit RAM. The SIE module is for handle USB series-interface-engine functions. UCOM ...
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... ISO OUT 3 Bulk IN 4 Bulk OUT 5 Interrupt IN 6* ISO IN Table 12 W681308 USB Endpoint Definitions NOTE: TPRAM - Dual Ports RAM XXXX PRODUCT DESCRIPTION ect 1.5Kohm on D+ bus Isochronous IN/OUT, Bulk IN/OUT, and Interrupt IN. maximum Packet Size (Bytes) 64 256 256 128 128 ...
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... Endpoint Descriptor Audio Class Descriptor HID Descriptor String Descriptor Index 0 String Descriptor Index 1 String De scrip tor Index 2 String De scrip tor Index 3 Report Descriptor Table 13 USB Descriptor RAM Definitions 54 W681308 Size 18 Bytes 366 Bytes 16 Bytes 16 Bytes 16 Bytes 1 6 Bytes 128 Bytes Rev1.2 ...
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... SS y digita l input pin +/- 10 2000 -0.5 to +3.63 -0 1.98 0.5 ay cause permanent damage to the device. VALUE 0 to +70 -40 to +85 +3.13 to +3.47 +4 5.25 55 W681308 UNIT C att Exposure to absolute maximum ratings UNIT ...
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... MIN - .32 1.49 1.24 nt @VO=3. 2.4 2.2 19.6 3.2 23.1 5°C; All ADC tests using Auxilia TR CONDITION TYP MIN 1.218 --- 2.436 --- 0 -0.40 =+2 5° =+70°C A -0.10 0 =+85°C A -0.20 0 -0.10 56 W681308 TYP MAX UNIT 0.8 V 3.6 V 1.4 1 1.49 V 1.54 1.58 V 1.29 1.34 V ± 10 µA ± 10 µ 110 K 0.4 V 3.7 5.3 mA 29.8 39.0 mA 6.4 10.6 mA 46.8 77.8 ...
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... -76 8Ohm speaker load -6dBFS @ 102 0 Hz, -- -79 4Ohm speaker load -3dB Low pass cut-off 6. 35mVrm s DDUSB weighted 57 W681308 RECEIVE ( DA C) UNIT MAX MIN TYP MAX -- -67 -- -77 -67 dB -67 -- -70 -60 dB -69 -- -65 - ...
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... No Load, Normal Opera tion Suspend Mode Including USB pull-up and discrete regulator No Load, Normal Operati on V =5V, load= 500mA DDUSB V =5V, load=1A DDUSB nteed by Nuvo ton via elect rical testing or char 58 W681308 RECEIVE (DAC) UNIT MAX MIN TYP MAX -- -67 -- -76 -66 dB -67 -- -69 -59 ...
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... R 1 DRV Rs=25 O hms = Edge LRLF LRLF LR/ LF Standby I Input Mode USB Output Mode 59 W681308 TYP. MAX. UNIT 3. 3 3 --- 2.5 V 2 2.0 V 1.61 1.9 KΩ 19 Ω 100 ...
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... VCO Frequency Ouput Duty Cycle PLL Short-Term Peak To Peak Output Jitter PLL Lock In Time XXXX PRODUCT DESCRIPTION SYMBOL CONDITIONS MIN. V 3.1 3 PLL OUT F --- JIT TER T READY 60 W681308 TYP. MAX. UNIT 3.3 3. MHz 48 MHz 48 --- MHz Rev1.2 ...
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... USB VoIP speaker phone application The application diagram illustrated that the W681308 is a SOC with very low BOM system design. Externally it supports a variety interfaces such as keypad, LCM, SLIC, SPI flash/EEPROM, Microphone and speakers directly. External 12M Crystal as well 3.3V linear regulator is required. Ring tone download and playback is through the same Audio DAC path with a switch for ringing and speech ...
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... W681308 7’ Rev1.2 ...
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... Ordering Information Nuvoton Part Number Description W681308_ _ Product Family When ordering W681308series devices, please refer to the following part numbers: Part Number W681308DG XXXX PRODUCT DESCRIPTION Package Material: Pb-free Package G = Package Type: = 48-Lead Quad Flat Pack Package (LQFP) D Temp Package Package o Range ( ...
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... Nuvo to ere proper env ironmental damage could occur. 64 W681308 DESCRIPTION ted for use as components in mbustion control ustain l ife. Furthermore, Nuvoton n produc ts could result or lead to a Rev1.2 ...