ADUC841BSZ62-5 Analog Devices Inc, ADUC841BSZ62-5 Datasheet - Page 37

• Manufacturer Part Number: ADUC841BSZ62-5
• Description: IC ADC/DAC 12BIT W/MCU 52-MQFP
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC8xxr

Specifications of ADUC841BSZ62-5

• Core Size: 8-Bit
• Program Memory Size: 62KB (62K x 8)
• Core Processor: 8052
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: DMA, PSM, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 8x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-MQFP, 52-PQFP
• Controller Family/series: (8051) 8052
• No. Of I/o's: 32
• Ram Memory Size: 2.25KB
• Cpu Speed: 20MIPS
• No. Of Timers: 3
• No. Of Pwm Channels: 2
• Embedded Interface Type: UART
• Rohs Compliant: Yes
• Cpu Family: ADuC8xx
• Device Core: 8052
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: I2C/SPI/UART
• Total Internal Ram Size: 2.25KB
• # I/os (max): 34
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• On-chip Adc: 8-chx12-bit
• On-chip Dac: 2-chx12-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 52
• Package Type: MQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADUC841QSZ - KIT DEV FOR ADUC841 QUICK START
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

CFG841
SFR Address
Power-On Default
Bit Addressable
Table 14. CFG841 SFR Bit Designations
Bit No.
7
6
5
4
3
2
1
0
1
these bits so all instructions to the CFG841 register should use the ORL, XRL, or ANL instructions. Value of 10H is for 11.0592 MHz crystal.
Note that the Flash/EE controller bits EPM2, EPM1, EPM0 are set to their correct values depending on the crystal frequency at power-up. The user should not modify
Name
EXSP
PWPO
DBUF
EPM2
EPM1
EPM0
MSPI
XRAMEN
Description
Extended SP Enable.
When set to 1 by the user, the stack rolls over from SPH/SP = 00FFH to 0100H.
When set to 0 by the user, the stack rolls over from SP = FFH to SP = 00H.
PWM Pin Out Selection.
Set to 1 by the user to select P3.4 and P3.3 as the PWM output pins.
Set to 0 by the user to select P2.6 and P2.7 as the PWM output pins.
DAC Output Buffer.
Set to 1 by the user to bypass the DAC output buffer.
Set to 0 by the user to enable the DAC output buffer.
Flash/EE Controller and PWM Clock Frequency Configuration Bits.
Frequency should be configured such that F
EPM2
0
0
0
0
1
1
Set to 1 by the user to move the SPI functionality of MISO, MOSI, and SCLOCK to P3.3, P3.4, and P3.5,
respectively.
Set to 0 by the user to leave the SPI functionality as usual on MISO, MOSI, and SCLOCK pins.
XRAM Enable Bit.
When set to 1 by the user, the internal XRAM is mapped into the lower two kBytes of the external address
space.
When set to 0 by the user, the internal XRAM is not accessible, and the external data memory is mapped into
the lower two kBytes of external data memory.
ADuC841 Config SFR
AFH
10H
No
0
EPM1
0
1
1
0
0
1
0
0
EPM0
1
0
1
1
32
Divide Factor
64
128
256
512
1024
Rev. 0 | Page 37 of 88
OSC
/Divide Factor = 32 kHz + 50%.
ADuC841/ADuC842/ADuC843