ADUC831 Analog Devices, ADUC831 Datasheet - Page 8

• Manufacturer Part Number: ADUC831
• Description: Precision Analog Microcontroller: 1.3MIPS 8052 MCU + 62kB Flash + 8-Ch 12-Bit ADC + Dual 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC831

• Mcu Core: 8052
• Mcu Speed (mips): 1.3
• Sram (bytes): 2304Bytes
• Gpio Pins: 34
• Adc # Channels: 8
• Other: PWM

ADuC831
P1.1/ADC1/T2EX
P1.5/ADC5/SS
P1.0/ADC0/T2
P1.2/ADC2
P1.3/ADC3
P1.4/ADC4
P1.6/ADC6
AGND
DAC0
DAC1
AV
C
V
REF
REF
DD
ADC0
ADC1
ADC6
ADC7
V
C
REF
REF
10
11
12
13
1
2
3
4
5
6
7
8
9
...
...
52 51 50 49 48
14 15 16 17 18 19 20 21 22 23 24 25 26
Figure 1. ADuC831 Block Diagram (Shaded areas are features not present on the ADuC812)
PIN 1
IDENTIFIER
ADuC831 52-LEAD PQFP
SENSOR
TEMP
REFERENCE
BAND GAP
(Not to Scale)
TOP VIEW
MUX
47 46 45 44
BUF
43 42 41 40
T/H
POR
39
38
37
36
35
34
33
32
31
30
29
28
27
11-BIT STACK POINTER
2 kBYTES USER XRAM
62 kBYTES PROGRAM
FLASH/EE INCLUDING
2
USER DOWNLOAD
P2.7/PWM1/A15/A23
P2.6/PWM0/A14/A22
P2.5/A13/A21
P2.4/A12/A20
DGND
P2.3/A11/A19
P2.2/A10/A18
P2.1/A9/A17
P2.0/A8/A16
SDATA/MOSI
DV
XTAL2
XTAL1
4 kBYTES DATA
ASYNCHRONOUS
DATA POINTERS
SERIAL PORT
DD
12-BIT
ADC
FLASH/EE
PIN CONFIGURATION
MODE
(UART)
DOWNLOADER
DEBUGGER
ADuC831
–8–
CALIBRATION
CONTROL
ADC
AND
P1.1/ADC1/T2EX
TIMER
UART
P1.5/ADC5/SS
P1.3/ADC3
P1.4/ADC4
P1.2/ADC2
CORE
8052
MCU
AGND
AGND
AGND
DAC0
AV
DAC1
AV
C
V
REF
REF
DD
DD
CONTROL
SERIAL INTERFACE
10
11
12
13
14
DAC
1
2
3
4
5
6
7
8
9
SYNCHRONOUS
(I
256 BYTES USER
POWER SUPPLY
2
C AND SPI )
PIN 1
IDENTIFIER
WATCHDOG
CONTROL
MONITOR
ADuC831 56-LEAD CSP
TIMER
PWM
RAM
OUTPUT DAC
OUTPUT DAC
TIME INTERVAL
(WAKEUP CCT)
VOLTAGE
VOLTAGE
(Not to Scale)
12-BIT
COUNTER
12-BIT
TOP VIEW
16-BIT
16-BIT
16-BIT
16-BIT
- DAC
- DAC
PWM
PWM
COUNTER
TIMERS
16-BIT
OSC
MUX
PWM1
DAC0
DAC1
PWM0
T0
T1
T2
T2EX
INT0
INT1
42
41
40
39
38
37
36
35
34
33
32
31
30
29
P2.4/A12/A20
DGND
DGND
XTAL2
P2.7/A15/A23
P2.6/A14/A22
P2.5/A13/A21
DV
XTAL1
P2.3/A11/A19
P2.2/A10/A18
P2.1/A9/A17
P2.0/A8/A16
SDATA/MOSI
DD
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