T89C51RD2-SMSC-M View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
T89C51RD2-SMSC-M Datasheet PDF : 86 Pages
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5. Pin Configuration
P1.0/T2 1
P1.1/T2EX 2
P1.2/ECI 3
P1.3CEX0 4
P1.4/CEX1 5
P1.5/CEX2 6
P1.6/CEX3 7
P1.7CEX4 8
RST 9
P3.0/RxD 10
P3.1/TxD 11
P3.2/INT0 12
P3.3/INT1 13
P3.4/T0 14
P3.5/T1 15
P3.6/WR 16
P3.7/RD 17
XTAL2 18
XTAL1 19
VSS 20
PDIL
40 VCC
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
31 EA
30 ALE/PROG
29 PSEN
28 P2.7/AD15
27 P2.6/AD14
26 P2.5/AD13
25 P2.4/AD12
24 P2.3/AD11
23 P2.2/AD10
22 P2.1/AD9
21 P2.0/AD8
T89C51RD2
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
6 5 4 3 2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
35
12
PLCC
34
13
33
14
32
15
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA
NIC*
ALE/PROG
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
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
44 43 42 41 40 39 38 37 36 35 34
1
33
2
32
3
31
4
30
5
29
6
VQFP44 1.4
28
7
27
8
26
9
25
10
24
11
23
12 13 14 15 16 17 18 19 20 21 22
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA
NIC*
ALE/PROG
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
*NIC: No Internal Connection
Rev. F - 15 February, 2001
5
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