p89c538nbb NXP Semiconductors, p89c538nbb Datasheet - Page 4

• Manufacturer Part Number: p89c538nbb
• Description: Cmos Single-chip 8-bit Microcontrollers With Flash Program Memory
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS
1998 Apr 24
* NO INTERNAL CONNECTION
80C51 8-bit microcontroller family
16K/64K/512 FLASH
Pin
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
Function
NIC*
P1.0/T2
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
17
7
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
18
6
Function
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
V
NIC*
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
SS
LCC
1
40
28
39
29
Pin
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Function
P2.7/A15
PSEN
ALE/PROG
NIC*
EA/V
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
SU00023
CC
PP
4
PLASTIC QUAD FLAT PACK PIN FUNCTIONS
* NO INTERNAL CONNECTION
Pin
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
Function
P1.5/CEX2
P1.6/CEX3
P1.7/CEX4
RST
P3.0/RxD
NIC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
11
1
44
12
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Function
V
NIC*
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/PROG
NIC*
EA/V
P0.7/AD7
PQFP
SS
PP
89C536/89C538
34
22
Preliminary specification
Pin
31
32
33
34
35
36
37
38
39
40
41
42
43
44
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
NIC*
P1.0/T2
P1.1/T2EX
P1.2/ECI
P1.3/CEX0
P1.4/CEX1
CC
SU00024