80C851 Datasheet, PDF (4/22 Pages) NXP Semiconductors – CMOS single-chip 8-bit microcontroller with on-chip EEPROM

Philips Semiconductors
CMOS single-chip 8-bit microcontroller
with on-chip EEPROM
Product specification
80C851/83C851
PIN CONFIGURATIONS
P1.0 1
P1.1 2
P1.2 3
P1.3 4
P1.4 5
P1.5 6
P1.6 7
P1.7 8
RST 9
RxD/P3.0 10
TxD/P3.1 11
INT0/P3.2 12
INT1/P3.3 13
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
V_SS 20
40 V_DD
39 P0.0/AD0
38 P0.1/AD1
37 P0.2/AD2
36 P0.3/AD3
35 P0.4/AD4
34 P0.5/AD5
33 P0.6/AD6
32 P0.7/AD7
DUAL 31 ^EA
IN-LINE
PACKAGE 30 ALE
29 PSEN
28 P2.7/A15
27 P2.6/A14
26 P2.5/A13
25 P2.4/A12
24 P2.3/A11
23 P2.2/A10
22 P2.1/A9
21 P2.0/A8
6
1
40
7
39
PLASTIC
LEADED
CHIP
CARRIER
17
29
18
28
44
34
1
33
PLASTIC
QUAD
FLAT
PACK
11
23
12
22
PLASTIC LEADED CHIP
CARRIER PIN FUNCTIONS
6
1
40
7
39
PLCC
17
29
18
28
Pin Function
Pin
1 NC*
23
2 P1.0
24
3 P1.1
25
4 P1.2
26
5 P1.3
27
6 P1.4
28
7 P1.5
29
8 P1.6
30
9 P1.7
31
10 RST
32
11 P3.0/RxD
33
12 NC*
34
13 P3.1/TxD
35
14 P3.2/INT0
36
15 P3.3/INT1
37
16 P3.4/T0
38
17 P3.5/T1
39
18 P3.6/WR
40
19 P3.7/RD
41
20 XTAL2
42
21 XTAL1
43
22
V_SS
44
* NO INTERNAL CONNECTION
Function
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
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
V_DD
PLASTIC QUAD FLAT PACK
PIN FUNCTIONS
44
34
1
33
PQFP
11
23
12
22
Pin Function
Pin
1 P1.5
23
2 P1.6
24
3 P1.7
25
4 RST
26
5 P3.0/RxD
27
6 NC*
28
7 P3.1/TxD
29
8 P3.2/INT0
30
9 P3.3/INT1
31
10 P3.4/T0
32
11 P3.5/T1
33
12 P3.6/WR
34
13 P3.7RD
35
14 XTAL2
36
15 XTAL1
37
16
V_SS
38
17 NC*
39
18 P2.0/A8
40
19 P2.1/A9
41
20 P2.2/A10
42
21 P2.3/A11
43
22 P2.4/A12
44
* NO INTERNAL CONNECTION
Function
P2.5/A13
P2.6/A14
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_DD
V_SS
P1.0
P1.1
P1.2
P1.3
P1.4
1998 Jul 03
4