P80C32EBBB PHILIPS [NXP Semiconductors], P80C32EBBB Datasheet - Page 36

• Manufacturer Part Number: P80C32EBBB
• Description: CMOS single-chip 8-bit microcontrollers
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS
PIN DESCRIPTIONS
1996 Aug 16
V
V
P0.0–0.7
P1.0–P1.7
P2.0–P2.7
MNEMONIC
* DO NOT CONNECT
SS
CC
CMOS single-chip 8-bit microcontrollers
Pin
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
Function
NC*
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
P3.0/RxD
NC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
39–32 43–36
21–28 24–31
DIP
1–8
20
40
1
2
3
4
5
6
7
8
17
7
PIN NUMBER
LCC
2–9
18
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
22
44
6
2
3
4
5
6
7
8
9
Function
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
V
NC*
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
SS
LCC
40–44,
37–30
18–25
1
QFP
1–3
16
38
40
41
42
43
44
1
2
3
40
28
TYPE NAME AND FUNCTION
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
I
39
29
Pin
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Ground: 0V reference.
Power Supply: This is the power supply voltage for normal, idle, and power-down
operation.
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.
Port 1: Port 1 is an 8-bit bidirectional I/O port with internal pull-ups. Port 1 pins that have 1s
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: I
during program memory verification. Alternate functions include:
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: I
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.
Function
P2.7/A15
PSEN
ALE
NC*
EA
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
V
CC
T2 (P1.0): Timer/Counter 2 external count input/Clockout
T2EX (P1.1): Timer/Counter 2 Reload/Capture/Direction Control
SU00741A
6
PLASTIC QUAD FLAT PACK PIN FUNCTIONS
* DO NOT CONNECT
Pin
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
Function
P1.5
P1.6
P1.7
RST
P3.0/RxD
NC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
IL
). Port 1 also receives the low-order address byte
11
1
IL
). Port 2 emits the high-order address byte
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
12
44
80C52/80C54/80C58
Function
V
NC*
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
PSEN
ALE
NC*
EA
P0.7/AD7
SS
PQFP
34
22
Pin
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Product specification
33
23
Function
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
V
NC*
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
CC
SU00742A