t89c51rd2-slscl ATMEL Corporation, t89c51rd2-slscl Datasheet - Page 5

• Manufacturer Part Number: t89c51rd2-slscl
• Description: 0 To 40 Mhz Flash Programmable 8-bit Microcontroller
• Manufacturer: ATMEL Corporation

4243G–8051–05/03
P1.1/T2EX
P1.3/CEX0
P1.4/CEX1
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
P1.2/EC1
P1.0/T2
VSS1
VCC
P5.5
P5.6
P5.7
P4.0
P4.1
10
12
13
14
15
16
1
2
3
4
5
6
7
8
9
11
64
17
63
18 19 20 21 22 23 24 25
62
61
60
VQFP64 1.4
VQFP64 1.4
59
58
57
56
55
26
54
27 28 29 30 31 32
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P1.3/CEX0
P1.4/CEX1
P1.1/T2EX
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
P1.2/ECI
P1.0/T2
VSS1
VCC
P5.5
P5.6
P5.7
P4.0
P4.1
P4.2
P3.6/WR
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
NIC
VSS
P4.5
XTAL2
P3.7/RD
P4.4
P4.3
XTAL1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28
9
8
29 30 31 32 33 34 35
7
6
5
4
PLCC 68
3
PLCC68
2
1 68 67 66 65 64 63
36 37 38 39 40 41
T89C51RD2
62 61
42 43
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
P5.0
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
NIC
VSS
P4.5
XTAL1
XTAL2
P3.7/RD
P4.4
P3.6/WR
P4.3
5