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P80C32EFAA View Datasheet(PDF) - Philips Electronics

Part Name
Description
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P80C32EFAA
Philips
Philips Electronics Philips
P80C32EFAA Datasheet PDF : 62 Pages
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Philips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C52/80C54/80C58
PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS
6
1
40
PLASTIC QUAD FLAT PACK PIN FUNCTIONS
44
34
7
39
LCC
1
33
PQFP
17
29
11
23
Pin Function
1 NC*
2 P1.0/T2
3 P1.1/T2EX
4 P1.2
5 P1.3
6 P1.4
7 P1.5
8 P1.6
9 P1.7
10 RST
11 P3.0/RxD
12 NC*
13 P3.1/TxD
14 P3.2/INT0
15 P3.3/INT1
* DO NOT CONNECT
18
28
Pin Function
16 P3.4/T0
17 P3.5/T1
18 P3.6/WR
19 P3.7/RD
20 XTAL2
21 XTAL1
22 VSS
23 NC*
24 P2.0/A8
25 P2.1/A9
26 P2.2/A10
27 P2.3/A11
28 P2.4/A12
29 P2.5/A13
30 P2.6/A14
Pin Function
31 P2.7/A15
32 PSEN
33 ALE
34 NC*
35 EA
36 P0.7/AD7
37 P0.6/AD6
38 P0.5/AD5
39 P0.4/AD4
40 P0.3/AD3
41 P0.2/AD2
42 P0.1/AD1
43 P0.0/AD0
44 VCC
SU00741A
Pin Function
1 P1.5
2 P1.6
3 P1.7
4 RST
5 P3.0/RxD
6 NC*
7 P3.1/TxD
8 P3.2/INT0
9 P3.3/INT1
10 P3.4/T0
11 P3.5/T1
12 P3.6/WR
13 P3.7/RD
14 XTAL2
15 XTAL1
* DO NOT CONNECT
12
22
Pin Function
16 VSS
17 NC*
18 P2.0/A8
19 P2.1/A9
20 P2.2/A10
21 P2.3/A11
22 P2.4/A12
23 P2.5/A13
24 P2.6/A14
25 P2.7/A15
26 PSEN
27 ALE
28 NC*
29 EA
30 P0.7/AD7
Pin Function
31 P0.6/AD6
32 P0.5/AD5
33 P0.4/AD4
34 P0.3/AD3
35 P0.2/AD2
36 P0.1/AD1
37 P0.0/AD0
38 VCC
39 NC*
40 P1.0/T2
41 P1.1/T2EX
42 P1.2
43 P1.3
44 P1.4
SU00742A
PIN DESCRIPTIONS
PIN NUMBER
MNEMONIC DIP LCC QFP TYPE NAME AND FUNCTION
VSS
20
22
16
I Ground: 0V reference.
VCC
40
44
38
I Power Supply: This is the power supply voltage for normal, idle, and power-down
operation.
P0.0–0.7
39–32 43–36 37–30
I/O Port 0: Port 0 is an open-drain, bidirectional I/O port. Port 0 pins that have 1s written to
them float and can be used as high-impedance inputs. Port 0 is also the multiplexed
low-order address and data bus during accesses to external program and data memory. In
this application, it uses strong internal pull-ups when emitting 1s. Port 0 also outputs the
code bytes during program verification. External pull-ups are required during program
verification.
P1.0–P1.7
1–8 2–9 40–44, I/O Port 1: Port 1 is an 8-bit bidirectional I/O port with internal pull-ups. Port 1 pins that have 1s
1–3
written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs,
port 1 pins that are externally pulled low will source current because of the internal pull-ups.
(See DC Electrical Characteristics: IIL). Port 1 also receives the low-order address byte
during program memory verification. Alternate functions include:
1
2
40
I/O
T2 (P1.0): Timer/Counter 2 external count input/Clockout
2
3
41
I
T2EX (P1.1): Timer/Counter 2 Reload/Capture/Direction Control
3
4
42
I
4
5
43
I/O
5
6
44
I/O
6
7
1
I/O
7
8
2
I/O
8
9
3
I/O
P2.0–P2.7
21–28 24–31 18–25
I/O Port 2: Port 2 is an 8-bit bidirectional I/O port with internal pull-ups. Port 2 pins that have 1s
written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs,
port 2 pins that are externally being pulled low will source current because of the internal
pull-ups. (See DC Electrical Characteristics: IIL). Port 2 emits the high-order address byte
during fetches from external program memory and during accesses to external data memory
that use 16-bit addresses (MOVX @DPTR). In this application, it uses strong internal
pull-ups when emitting 1s. During accesses to external data memory that use 8-bit
addresses (MOV @Ri), port 2 emits the contents of the P2 special function register.
1996 Aug 16
6
 

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