Philips Semiconductors
Product specification
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
8XC52/54/58/80C32
8XC51FA/FB/FC/80C51FA
8XC51RA+/RB+/RC+/RD+/80C51RA+
LOGIC SYMBOL
PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS
6
1
40
V
V
SS
CC
XTAL1
7
39
ADDRESS AND
DATA BUS
LCC
XTAL2
RST
17
29
T2
T2EX
18
28
EA/V
PP
Pin Function
Pin Function
Pin Function
PSEN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NIC*
P1.0/T2
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
V
SS
NIC*
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
31
32
33
34
35
36
37
38
39
40
41
42
43
44
P2.7/A15
PSEN
ALE/PROG
NIC*
ALE/PROG
RxD
P1.1/T2EX
P1.2/ECI
P1.3/CEX0
P1.4/CEX1
P1.5/CEX2
P1.6/CEX3
P1.7/CEX4
RST
P3.0/RxD
NIC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
TxD
INT0
EA/V
PP
INT1
T0
T1
WR
RD
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
ADDRESS BUS
SU00830
V
CC
PIN CONFIGURATIONS
DUAL IN-LINE PACKAGE PIN FUNCTIONS
* NO INTERNAL CONNECTION
SU00023
PLASTIC QUAD FLAT PACK
PIN FUNCTIONS
T2/P1.0
40
39
V
CC
1
2
3
T2EX/P1.1
P0.0/AD0
ECI/P1.2
38 P0.1/AD1
37 P0.2/AD2
44
34
CEX0/P1.3
CEX1/P1.4
4
5
36
P0.3/AD3
35 P0.4/AD4
34
1
33
23
CEX2/P1.5
CEX3/P1.6
CEX4/P1.7
RST
6
7
8
9
PQFP
P0.5/AD5
33 P0.6/AD6
32
11
P0.7/AD7
DUAL
IN-LINE
PACKAGE
31 EA/V
RxD/P3.0 10
TxD/P3.1 11
INT0/P3.2 12
PP
12
22
30
ALE/PROG
Pin Function
Pin Function
Pin Function
1
2
3
P1.5/CEX2
P1.6/CEX3
P1.7/CEX4
RST
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
V
NIC*
31
32
33
34
35
36
37
38
39
40
41
42
43
44
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
SS
29 PSEN
28
13
INT1/P3.3
P2.7/A15
27 P2.6/A14
26
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
4
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
5
6
P3.0/RxD
NIC*
P2.5/A13
7
8
9
10
11
12
13
14
15
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
V
CC
25 P2.4/A12
24 P2.3/A11
NIC*
P1.0/T2
P1.1/T2EX
P1.2/ECI
P1.3/CEX0
P1.4/CEX1
23
22
P2.2/A10
P2.1/A9
P2.0/A8
ALE/PROG
NIC*
EA/V
PP
XTAL1
P0.7/AD7
21
V
20
SS
SU00024
* NO INTERNAL CONNECTION
SU00021
4
1999 Apr 01