83C453 Datasheet, PDF (4/26 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 8K/256 OTP/ROM, expanded I/O

Philips Semiconductors
80C51 8-bit microcontroller family
8K/256 OTP/ROM, expanded I/O
Preliminary specification
83C453/87C453
LOGIC SYMBOL
V_CC V_SS
XTAL1
XTAL2
RST
EA/V_PP
PSEN
ALE/PROG
RxD
TxD
INT0
INT1
T0
T1
WR
RD
PORT 6 CONTROL
ODS
IDS
BFLAG
AFLAG
ADDRESS AND
DATA BUS
ADDRESS BUS
SU00085
LCC PIN FUNCTIONS
9
1
10
61
60
LCC
26
44
Pin Function
1 EA/V_PP
2 P2.0/A8
3 P2.1/A9
4 P2.2/A10
5 P2.3/A11
6 P2.4/A12
7 P2.5/A13
8 P2.6/A14
9 P2.7/A15
10 P0.7/AD7
11 P0.6/AD6
12 P0.5/AD5
13 P0.4/AD4
14 P0.3/AD3
15 P0.2/AD2
16 P0.1/AD1
17 P0.0/AD0
18 V_CC
19 P4.7
20 P4.6
21 P4.5
22 P4.4
23 P4.3
27
43
Pin Function
24 P4.2
25 P4.1
26 P4.0
27 P1.0
28 P1.1
29 P1.2
30 P1.3
31 P1.4
32 P1.5
33 P1.6
34 P1.7
35 RST
36 P3.0/RxD
37 P3.1/TxD
38 P3.2/INTO
39 P3.3/INT1
40 P3.4/T0
41 P3.5/T1
42 P3.6/WR
43 P3.7/RD
44 P5.0
45 P5.1
46 P5.2
Pin Function
47 P5.3
48 P5.4
49 P5.5
50 P5.6
51 P5.7
52 XTAL2
53 XTAL1
54 V_SS
55 ODS
56 IDS
57 BFLAG
58 AFLAG
59 P6.0
60 P6.1
61 P6.2
62 P6.3
63 P6.4
64 P6.5
65 P6.6
66 P6.7
67 PSEN
68 ALE/PROG
SU00157
1998 Apr 23
4