ADUC832 Analog Devices, ADUC832 Datasheet - Page 21

• Manufacturer Part Number: ADUC832
• Description: Precision Analog Microcontroller: 1.3MIPS 8052 MCU + 62kB Flash + 8-Ch 12-Bit ADC + Dual 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC832

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

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
P1.1/ADC1/T2EX
Table 13. Pin Function Descriptions
Mnemonic
Exposed Paddle
P1.0/ADC0/T2
P1.1/ADC1/T2EX
P1.2/ADC2
P1.3/ADC3
AV
AGND
C
REF
P1.5/ADC5/SS
P1.0/ADC0/T2
DD
P1.2/ADC2
P1.3/ADC3
P1.4/ADC4
P1.6/ADC6
AGND
DAC0
DAC1
AV
C
V
REF
REF
DD
10
11
12
13
1
2
3
4
5
6
7
8
9
52
14
PIN 1
IDENTIFIER
51 50 49 48 47 46 45 44 43 42 41 40
15
16
Figure 14. 52-Lead MQFP
17
18
(Not to Scale)
ADuC832
TOP VIEW
19
20
MQFP
N/A
1
2
3
4
5
6
7
21
22
Pin No.
23
24
LFCSP
0
56
1
2
3
4, 5
6, 7, 8
9
25
26
39
38
37
36
35
34
33
32
31
30
29
28
27
P2.7/PWM1/A15/A23
P2.6/PWM0/A14/A22
P2.5/A13/A21
P2.4/A12/A20
DGND
DV
XTAL2
XTAL1
P2.3/A11/A19
P2.2/A10/A18
P2.1/A9/A17
P2.0/A8/A16
SDATA/MOSI
I
I
Type
I
I
I
I
I
I
I
I
P
G
I/O
DD
Description
The LFCSP has an exposed paddle that must be soldered to the PCB but left
unconnected.
Input Port 1 (P1.0). Port 1 is an 8-bit input port only. Unlike other ports, Port 1 defaults
to analog input mode. To configure any Port 1 pin as a digital input, write a 0 to the
Port 1 bit. Port 1 pins are multifunctional and share the following functionality.
Single-Ended Analog Input (ADC0). Channel selection is via ADCCON2 SFR.
Timer/Counter 2 Digital Input (T2). When enabled, Counter 2 is incremented in
response to a 1-to-0 transition of the T2 input.
Input Port 1 (P1.1). Port 1 is an 8-bit input port only. Unlike other ports, Port 1 defaults
to analog input mode. To configure any Port 1 pin as a digital input, write a 0 to the
Port 1 bit. Port 1 pins are multifunctional and share the following functionality.
Single-Ended Analog Input (ADC1). Channel selection is via ADCCON2 SFR.
Digital Input (T2EX). Capture/Reload trigger for Counter 2; also functions as an
up/down control input for Counter 2.
Input Port 1 (P1.2). Port 1 is an 8-bit input port only. Unlike other ports, Port 1 defaults
to analog input mode. To configure any Port 1 pin as a digital input, write a 0 to the
Port 1 bit. Port 1 pins are multifunctional and share the following functionality.
Single-Ended Analog Input (ADC2). Channel selection is via ADCCON2 SFR.
Input Port 1 (P1.3). Port 1 is an 8-bit input port only. Unlike other ports, Port 1 defaults
to analog input mode. To configure any Port 1 pin as a digital input, write a 0 to the
Port 1 bit. Port 1 pins are multifunctional and share the following functionality.
Single-Ended Analog Input (ADC3). Channel selection is via ADCCON2 SFR.
Analog Positive Supply Voltage, 3 V or 5 V Nominal.
Analog Ground. Ground reference point for the analog circuitry.
Decoupling Input for On-Chip Reference. Connect 0.1 μF between this pin and AGND.
Rev. A | Page 21 of 92
NOTES
1. THE LFCSP HAS AN EXPOSED PADDLE THAT MUST BE SOLDERED
P1.1/ADC1/T2EX
TO THE PCB BUT ELECTRICALLY LEFT UNCONNECTED.
P1.5/ADC5/SS
P1.2/ADC2
P1.3/ADC3
P1.4/ADC4
AGND
AGND
AGND
DAC0
DAC1
AV
AV
C
V
REF
REF
DD
DD
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Figure 15. 56-Lead LFCSP
PIN 1
INDICATOR
(Not to Scale)
ADuC832
TOP VIEW
42
41
40
39
38
37
36
35
34
33
32
31
30
29
P2.7/PWM1/A15/A23
P2.6/PWM0/A14/A22
P2.5/A13/A21
P2.4/A12/A20
DGND
DGND
DV
XTAL2
XTAL1
P2.3/A11/A19
P2.2/A10/A18
P2.1/A9/A17
P2.0/A8/A16
SDATA/MOSI
ADuC832
DD