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AT80C51RB2-RLTIM Datasheet(PDF) 3 Page - ATMEL Corporation

Part # AT80C51RB2-RLTIM
Description  80C51 High Performance ROM 8-bit Microcontroller
Download  83 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT80C51RB2-RLTIM Datasheet(HTML) 3 Page - ATMEL Corporation

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AT80C51RD2/AT83C51Rx2
4113B–8051–03/05
Pin Configurations
P1.7CEX4
P1.4/CEX1
RST
P3.0/RxD
P3.1/TxD
P1.3CEX0
1
P1.5/CEX2
P1.6/CEX3
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
VSS
P2.0/AD8
P2.1/AD9
P2.2/AD10
P2.3/AD11
P2.4/AD12
P0.4/AD4
P0.6/AD6
P0.5/AD5
P0.7/AD7
ALE/PROG
PSEN
EA
P2.7/AD15
P2.5/AD13
P2.6/AD14
P1.0/T2
P1.2/ECI
P1.1/T2EX
VCC
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
PDIL40
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
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35
34
33
32
31
30
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28
27
26
25
24
23
22
21
43 42 41 40 39
44
38 37 36 35 34
P0.4/AD4
P0.6/AD6
P0.5/AD5
P0.7/AD7
ALE/PROG
PSEN
EA
NIC*
P2.7/A15
P2.5/A13
P2.6/A14
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
12 13
17
16
15
14
20
19
18
21 22
33
32
31
30
29
28
27
26
25
24
23
VQFP44 1.4
1
2
3
4
5
6
7
8
9
10
11
18 19
23
22
21
20
26
25
24
27 28
5
4
3
2
1
6
44 43 42 41 40
P0.4/AD4
P0.6/AD6
P0.5/AD5
P0.7/AD7
ALE/PROG
PSEN
EA
NIC*
P2.7/A15
P2.5/A13
P2.6/A14
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
7
8
9
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11
12
13
14
15
16
17
39
38
37
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35
34
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31
30
29
PLCC44
*NIC: No Internal Connection


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