SC16C750BIA44 NXP Semiconductors, SC16C750BIA44 Datasheet

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SC16C750BIA44

Manufacturer Part Number
SC16C750BIA44
Description
Manufacturer
NXP Semiconductors
Datasheet

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1. General description
2. Features
The SC16C750B is a Universal Asynchronous Receiver and Transmitter (UART) used for
serial data communications. Its principal function is to convert parallel data into serial
data, and vice versa. The UART can handle serial data rates up to 3 Mbit/s.
The SC16C750B is pin compatible with the TL16C750 and it will power-up to be
functionally equivalent to the 16C450. Programming of control registers enables the
added features of the SC16C750B. Some of these added features are the 64-byte receive
and transmit FIFOs, automatic hardware flow control. The selectable auto-flow control
feature significantly reduces software overload and increases system efficiency while in
FIFO mode by automatically controlling serial data flow using RTS output and CTS input
signals. The SC16C750B also provides DMA mode data transfers through FIFO trigger
levels and the TXRDY and RXRDY signals. On-board status registers provide the user
with error indications, operational status, and modem interface control. System interrupts
may be tailored to meet user requirements. An internal loopback capability allows
on-board diagnostics.
The SC16C750B operates at 5 V, 3.3 V and 2.5 V, the industrial temperature range and is
available in plastic PLCC44, LQFP64, and HVQFN32 packages.
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SC16C750B
5 V, 3.3 V and 2.5 V UART with 64-byte FIFOs
Rev. 04 — 25 August 2006
Single channel
5 V, 3.3 V and 2.5 V operation
5 V tolerant inputs
Industrial temperature range ( 40 C to +85 C)
After reset, all registers are identical to the typical 16C450 register set
Capable of running with all existing generic 16C450 software
Pin compatibility with the industry-standard ST16C450/550, TL16C450/550,
PC16C450/550. Software compatible with SC16C750 and TL16C750
Up to 3 Mbit/s transmit/receive operation at 5 V, 2 Mbit/s at 3.3 V, and 1 Mbit/s at 2.5 V
64-byte transmit FIFO
64-byte receive FIFO with error flags
Programmable auto-RTS and auto-CTS
Automatic hardware flow control
Software selectable Baud Rate Generator
Four selectable Receive interrupt trigger levels
Standard modem interface
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In auto-CTS mode, CTS controls transmitter
In auto-RTS mode, RxFIFO contents and threshold control RTS
Product data sheet

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SC16C750BIA44 Summary of contents

Page 1

SC16C750B 5 V, 3.3 V and 2.5 V UART with 64-byte FIFOs Rev. 04 — 25 August 2006 1. General description The SC16C750B is a Universal Asynchronous Receiver and Transmitter (UART) used for serial data communications. Its principal function is ...

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... Prioritized interrupt system controls I Modem control functions (CTS, RTS, DSR, DTR, RI, DCD) 3. Ordering information Table 1. Ordering information Industrial 2 Type number Package Name SC16C750BIA44 PLCC44 SC16C750BIB64 LQFP64 SC16C750BIBS HVQFN32 SC16C750B_4 Product data sheet 2-stop bit +85 C. ...

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Philips Semiconductors 4. Block diagram SC16C750B DATA BUS IOR, IOR IOW, IOW CONTROL RESET LOGIC REGISTER CS0, CS1, CS2 SELECT AS LOGIC DDIS INT INTERRUPT TXRDY CONTROL RXRDY LOGIC Fig 1. Block diagram of ...

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... Pinning information 5.1 Pinning Fig 2. Pin configuration for PLCC44 Fig 3. Pin configuration for HVQFN32 SC16C750B_4 Product data sheet 5 V, 3.3 V and 2.5 V UART with 64-byte FIFOs RCLK RX 11 SC16C750BIA44 n. CS0 CS1 15 CS2 16 17 BAUDOUT terminal 1 index area 1 D5 ...

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Philips Semiconductors Fig 4. Pin configuration for LQFP64 5.2 Pin description Table 2. Pin description Symbol Pin PLCC44 LQFP64 A2, A1, A0 29, 30, 17, 18 BAUDOUT 17 64 CS0, CS1, 14, 15, 59, 61, ...

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Philips Semiconductors Table 2. Pin description …continued Symbol Pin PLCC44 LQFP64 CTS 52, 51, 50 48, 46, 45 43, 42 DCD 42 36 DDIS 26 12 DSR ...

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Philips Semiconductors Table 2. Pin description …continued Symbol Pin PLCC44 LQFP64 RCLK 10 54 RESET 39 32 IOR 25 10 IOR RTS 36 26 RXRDY SC16C750B_4 Product ...

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Philips Semiconductors Table 2. Pin description …continued Symbol Pin PLCC44 LQFP64 TXRDY GND 22 8 IOW 21 6 IOW 20 4 XTAL1 18 1 [1] XTAL2 19 2 [1] In Sleep mode, XTAL2 is ...

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Philips Semiconductors The rich feature set of the SC16C750B is available through internal registers. Automatic hardware flow control, selectable transmit and receive FIFO trigger level, selectable TX and RX baud rates, modem interface controls, and a sleep mode are some ...

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Philips Semiconductors Table 4. Selected trigger level (characters) 14 64-byte FIFO 6.3 Hardware flow control When automatic hardware flow control is enabled, the SC16C750B monitors the CTS pin for a remote buffer overflow indication and controls ...

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Philips Semiconductors 6.5 Programmable baud rate generator The SC16C750B supports high speed modem technologies that have increased input data rates by employing data compression schemes. For example, a 33.6 kbit/s modem that employs data compression may require a 115.2 kbit/s ...

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Philips Semiconductors Table 5. Using 1.8432 MHz crystal Desired baud rate 50 75 110 134.5 150 300 600 1200 1800 2000 2400 3600 4800 7200 9600 19200 38400 56000 6.6 DMA operation The SC16C750B FIFO trigger level provides additional flexibility ...

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Philips Semiconductors 6.7 Sleep mode The SC16C750B is designed to operate with low power consumption. A special Sleep mode is included to further reduce power consumption (the internal oscillator driver is disabled) when the chip is not being used. With ...

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Philips Semiconductors SC16C750B DATA BUS IOR, IOR AND IOW, IOW CONTROL RESET LOGIC REGISTER CS0, CS1, CS2 SELECT AS LOGIC DDIS INT INTERRUPT TXRDY CONTROL RXRDY LOGIC Fig 6. Internal Loopback mode diagram SC16C750B_4 ...

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Philips Semiconductors 7. Register descriptions Table 8 assigned bit functions are more fully defined in Table 8. SC16C750B internal registers Register Default [2] General Register Set RHR THR XX 0 ...

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Philips Semiconductors 7.1 Transmit (THR) and Receive (RHR) Holding Registers The serial transmitter section consists of an 8-bit Transmit Hold Register (THR) and Transmit Shift Register (TSR). The status of the THR is provided in the Line Status Register (LSR). ...

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Philips Semiconductors Table 9. Bit Symbol 1 IER[1] 0 IER[0] 7.2.1 IER versus Receive FIFO interrupt mode operation When the receive FIFO (FCR[0] = logic 1), and receive interrupts (IER[0] = logic 1) are enabled, the receive interrupts and register ...

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Philips Semiconductors 7.3 FIFO Control Register (FCR) This register is used to enable the FIFOs, clear the FIFOs, set the receive FIFO trigger levels, and select the DMA mode. 7.3.1 DMA mode 7.3.1.1 Mode 0 (FCR bit ...

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Philips Semiconductors Table 10. Bit Symbol FCR[3] (continued) 2 FCR[2] 1 FCR[1] 0 FCR[0] Table 11. FCR[ SC16C750B_4 Product data sheet FIFO Control Register bits description Description Transmit operation in mode ‘1’: When the SC16C750B is ...

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Philips Semiconductors 7.4 Interrupt Status Register (ISR) The SC16C750B provides four levels of prioritized interrupts to minimize external software interaction. The Interrupt Status Register (ISR) provides the user with four interrupt status bits. Performing a read cycle on the ISR ...

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Philips Semiconductors 7.5 Line Control Register (LCR) The Line Control Register is used to specify the asynchronous data communication format. The word length, the number of stop bits, and the parity are selected by writing the appropriate bits in this ...

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Philips Semiconductors Table 15. LCR[ Table 16. LCR[ Table 17. LCR[ SC16C750B_4 Product data sheet LCR[5] parity selection LCR[4] LCR[3] Parity selection parity 0 1 ...

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Philips Semiconductors 7.6 Modem Control Register (MCR) This register controls the interface with the modem or a peripheral device. Table 18. Bit The flow control can be configured by programming MCR[1] and ...

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Philips Semiconductors 7.7 Line Status Register (LSR) This register provides the status of data transfers between the SC16C750B and the CPU. Table 20. Bit Symbol 7 LSR[7] 6 LSR[6] 5 LSR[5] 4 LSR[4] 3 LSR[3] 2 LSR[2] 1 LSR[1] 0 ...

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Philips Semiconductors 7.8 Modem Status Register (MSR) This register provides the current state of the control interface signals from the modem, or other peripheral device to which the SC16C750B is connected. Four bits of this register are used to indicate ...

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Philips Semiconductors 7.9 Scratchpad Register (SPR) The SC16C750B provides a temporary data register to store 8 bits of user information. 7.10 SC16C750B external reset conditions Table 22. Register IER ISR LCR MCR LSR MSR FCR Table 23. Output TX RTS ...

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Philips Semiconductors 9. Static characteristics Table 25. Static characteristics +85 C; tolerance of V amb Symbol Parameter V LOW-level clock input voltage IL(CK) V HIGH-level clock input voltage IH(CK) V LOW-level input voltage IL V ...

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Philips Semiconductors 10. Dynamic characteristics Table 26. Dynamic characteristics +85 C; tolerance of V amb Symbol Parameter clock pulse duration frequency on pin XTAL1 XTAL1 t address strobe width ...

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Philips Semiconductors Table 26. Dynamic characteristics +85 C; tolerance of V amb Symbol Parameter t delay from stop to set RXRDY 25d t delay from IOR to reset 26d RXRDY t delay from IOW to ...

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Philips Semiconductors CS2 CS1, CS0 t 14d IOW, IOW Fig 8. General write timing when using AS signal 6s' CS IOR Fig ...

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Philips Semiconductors 6s' CS IOW Fig 10. General write timing when AS is tied to GND active IOW RTS change of state DTR DCD CTS DSR INT IOR RI Fig 11. Modem input/output ...

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Philips Semiconductors EXTERNAL CLOCK ------- XTAL1 t w3 Fig 12. External clock timing RX INT IOR Fig 13. Receive timing SC16C750B_4 Product data sheet start bit data bits ( ...

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Philips Semiconductors RX RXRDY IOR Fig 14. Receive ready timing in non-FIFO mode RX RXRDY IOR Fig 15. Receive ready timing in FIFO mode SC16C750B_4 Product data sheet start bit data bits ( ...

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Philips Semiconductors TX INT active IOW Fig 16. Transmit timing TX IOW active byte #1 TXRDY Fig 17. Transmit ready timing in non-FIFO mode SC16C750B_4 Product data sheet start bit data bits ( ...

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Philips Semiconductors TX IOW active byte # byte #64 t 27d TXRDY Fig 18. Transmit ready timing in FIFO mode (DMA mode ‘1’) SC16C750B_4 Product data sheet start bit data bits ( ...

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Philips Semiconductors 11. Package outline PLCC44: plastic leaded chip carrier; 44 leads pin 1 index DIMENSIONS (mm dimensions are derived from the original inch dimensions UNIT A ...

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Philips Semiconductors HVQFN32: plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 0.85 mm terminal 1 index area terminal 1 index area 32 DIMENSIONS (mm ...

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Philips Semiconductors LQFP64: plastic low profile quad flat package; 64 leads; body 1 pin 1 index DIMENSIONS (mm are the original dimensions) A UNIT ...

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Philips Semiconductors 12. Soldering 12.1 Introduction to soldering surface mount packages There is no soldering method that is ideal for all surface mount IC packages. Wave soldering can still be used for certain surface mount ICs, but it is not ...

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Philips Semiconductors – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to ...

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Philips Semiconductors [3] These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no account be processed through more than one soldering cycle or subjected to infrared reflow soldering with peak temperature exceeding 217 C body ...

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Philips Semiconductors Table 31. Revision history …continued Document ID Release date • Modifications Section 6.9 “Loopback (continued): • Table 8 “SC16C750B internal “OUT2, INT enable” to “OUT2” • Table 16 “LCR[2] stop bit • Table 17 “LCR[1:0] word • Table ...

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Philips Semiconductors 15. Legal information 15.1 Data sheet status [1][2] Document status Product status Objective [short] data sheet Development Preliminary [short] data sheet Qualification Product [short] data sheet Production [1] Please consult the most recently issued document before initiating or ...

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Philips Semiconductors 17. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . ...

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