P8XC557E4 NXP Semiconductors, P8XC557E4 Datasheet - Page 5

• Manufacturer Part Number: P8XC557E4
• Description: The P80C557E4/P83C557E4/P89C557E4 (hereafter generically referred to as P8xC557E4) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family
• Manufacturer: NXP Semiconductors

Philips Semiconductors
4. PINNING
1999 Mar 02
Single-chip 8-bit microcontroller
n.c.
*
= not connected
= only P89C557E4 with alternate function WE
P4.3/CMSR3
P4.4/CSMR4
P4.0/CMSR0
P4.1/CMSR1
P4.2/CMSR2
P5.6/ADC6
P5.5/ADC5
P5.4/ADC4
P5.3/ADC3
P5.2/ADC2
P5.1/ADC1
P5.0/ADC0
P5.7/ADC7
RSTOUT
ADEXS
PWM1
PWM0
AV
AV
AV
1
AV
V
V
DD1
SS1
DD1
EW
ref+
SS
ref–
11
10
12
13
14
15
16
17
18
19
20
21
22
23
24
4
5
6
7
8
9
3
1
2
Figure 3. Pinning diagram for QFP80 (SOT318)
P8xC557E4
5
P83C557E4/P80C557E4/P89C557E4
60
59
58
55
52
50
49
48
47
46
45
44
43
42
41
64
63
62
61
57
56
54
53
51
P3.7/RD
V
V
XTAL1
XTAL2
P3.6/WR
P3.0/RXD
ALE/WE *
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
P2.4/A12
P2.3/A11
P2.2/A10
P2.1/A9
P2.0/A8
n.c.
n.c.
P3.5/T1
P3.4/T0
P3.3/INT1
P3.2/INT0
P3.1/TXD
SS3
DD3
Product specification