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ManualsBrandsANALOG DEVICES ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LFCSP 56 VQ (8x8) 8-Bit 16 MHz I/O number 34
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Table Of Contents
Data Sheet ADuC832
Rev. B | Page 21 of 92
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
52
1
2
3
4
5
6
7
8
9
10
13
12
11
39
38
37
36
35
34
33
32
31
30
29
28
27
26252423222120191817161514
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
DV
DD
DGND
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
ALE
PSEN
EA
P1.0/ADC0/T2
P1.1/ADC1/T2EX
P1.2/ADC2
P1.3/ADC3
AV
DD
AGND
C
REF
V
REF
DAC0
DAC1
P1.4/ADC4
P1.5/ADC5/SS
P1.6/ADC6
P2.7/PWM1/A15/A23
P2.6/PWM0/A14/A22
P2.5/A13/A21
P2.4/A12/A20
DGND
DV
DD
XTAL2
XTAL1
P2.3/A11/A19
P2.2/A10/A18
P2.1/A9/A17
P2.0/A8/A16
SDATA/MOSI
P1.7/ADC7
RESET
P3.0/RxD
P3.1/TxD
P3.2/INT0
P3.3/INT1/MISO/PWM1
DV
DD
DGND
P3.4/T0/PWMC/PWM0/EXTCLK
P3.5/T1/CONVST
P3.7/RD
SCLOCK
P3.6/WR
ADuC832
51 50 49 48 47 46 45 44 43 42 41 40
02987-002
Figure 14. 52-Lead MQFP
P1.6/ADC6
P.7/ADC7
RESET
P3.0/RxD
P3.1/TxD
P3.3/INT1/MISO/PWM1
P3.2/INT0
DV
DD
DGND
P3.4/T0/PWMC/PWM0/EXTCLK
P3.5/T1/CONVST
P3.6/WR
P3.7/RD
SCLOCK
ADuC832
TOP VIEW
(Not to Scale)
P2.7/PWM1/A15/A23
P2.6/PWM0/A14/A22
P2.5/A13/A21
P2.4/A12/A20
DGND
DGND
DV
DD
XTAL1
P2.3/A11/A19
P2.2/A10/A18
P2.1/A9/A17
P2.0/A8/A16
SDATA/MOSI
XTAL2
02987-003
PSEN
EA
PIN 1
INDICATOR
1P1.1/ADC1/T2EX
2P1.2/ADC2
3P1.3/ADC3
4
AV
DD
5
AV
DD
6
AGND
7AGND
8AGND
9
C
REF
10
V
REF
11
DAC0
12DAC1
13P1.4/ADC4
14P1.5/ADC5/SS
35
36
37
38
39
40
41
42
34
33
32
31
30
29
15
16
17
19
21
20
22
23
24
25
26
27
28
18
45
ALE
46
P0.0/AD0
47
P0.1/AD1
48
P0.2/AD2
49
P0.3/AD3
50
DGND
51
DV
DD
52
P0.4/AD4
53
P0.5/AD5
54
P0.6/AD6
44
43
55
P0.7/AD7
56
P1.0/ADC0/T2
NOTES
1. THE LFCSP HAS AN EXPOSED PADDLE THAT MUST BE SOLDERED
TO THE PCB BUT ELECTRICALLY LEFT UNCONNECTED.
Figure 15. 56-Lead LFCSP
Table 13. Pin Function Descriptions
Pin No.
Mnemonic MQFP LFCSP Type Description
Exposed Paddle N/A 0 The LFCSP has an exposed paddle that must be soldered to the PCB but left
unconnected.
P1.0/ADC0/T2 1 56 I 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.
I Single-Ended Analog Input (ADC0). Channel selection is via ADCCON2 SFR.
I Timer/Counter 2 Digital Input (T2). When enabled, Counter 2 is incremented in
response to a 1-to-0 transition of the T2 input.
P1.1/ADC1/T2EX 2 1 I 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.
I Single-Ended Analog Input (ADC1). Channel selection is via ADCCON2 SFR.
I Digital Input (T2EX). Capture/Reload trigger for Counter 2; also functions as an
up/down control input for Counter 2.
P1.2/ADC2 3 2 I 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.
I Single-Ended Analog Input (ADC2). Channel selection is via ADCCON2 SFR.
P1.3/ADC3 4 3 I 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.
I Single-Ended Analog Input (ADC3). Channel selection is via ADCCON2 SFR.
AV
DD
5 4, 5 P Analog Positive Supply Voltage, 3 V or 5 V Nominal.
AGND 6 6, 7, 8 G Analog Ground. Ground reference point for the analog circuitry.
C
REF
7 9 I/O Decoupling Input for On-Chip Reference. Connect 0.1 μF between this pin and AGND.