80C550 Datasheet, PDF (4/28 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Philips Semiconductors
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer
PIN CONFIGURATIONS
AV_CC/Vref+ 1
AV_SS/Vref– 2
P1.0/ADC0 3
40 V_CC
39 P0.0/AD0
38 P0.1/AD1
P1.1/ADC1 4
37 P0.2/AD2
P1.2/ADC2 5
36 P0.3/AD3
P1.3/ADC3 6
35 P0.4/AD4
P1.4/ADC4 7
34 P0.5/AD5
P1.5/ADC5 8
33 P0.6/AD6
RST 9
RxD/P3.0 10
TxD/P3.1 11
PLASTIC
DUAL
IN-LINE
PACKAGE
32 P0.7/AD7
31 EA/V_PP
30 ALE/PROG
INT0/P3.2 12
29 PSEN
INT1/P3.3 13
28 P2.7/A15
T0/P3.4 14
27 P2.6/A14
T1/P3.5 15
26 P2.5/A13
WR/P3.6 16
25 P2.4/A12
RD/P3.7 17
24 P2.3/A11
XTAL2 18
23 P2.2/A10
XTAL1 19
22 P2.1/A9
V_SS ²⁰
21 P2.0/A8
6
1
40
7
39
PLASTIC
LEADED
CHIP CARRIER
17
29
18
28
Pin Function
1 AV_CC
2 Vref+
3 Vref–
4 AV_SS
5 P1.0/ADC0
6 P1.1/ADC1
7 P1.2/ADC2
8 P1.3/ADC3
9 P1.4/ADC4
10 P1.5/ADC5
11 P1.6/ADC6
12 P1.7/ADC7
13 RST
14 P3.0/RxD
15 P3.1/TxD
Pin Function
16 P3.2/INT0
17 P3.3/INT1
18 P3.4/T0
19 P3.5/T1
20 P3.6/WR
21 P3.7/RD
22 XTAL2
23 XTAL1
24 V_SS
25 P2.0/A8
26 P2.1/A9
27 P2.2/A10
28 P2.3/A11
29 P2.4/A12
30 P2.5/A13
Pin Function
31 P2.6/A14
32 P2.7/A15
33 PSEN
34 ALE/PROG
35 EA/V_PP
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 V_CC
SU00196
Product specification
80C550/83C550/87C550
1998 May 01
4