at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 5

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

7663B–8051–03/07
P1.1/T2EX/SS#
P1.3/CEX0
P1.4/CEX1
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
Rx_OCD
P1.2/ECI
P1.0/T2
VCC
P5.5
P5.6
P5.7
P4.0
P4.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AT89C51RE2
VQFP64
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
Tx_OCD
VSS
P4.5
XTAL1
XTAL2
P3.7/RD#
P4.4
P3.6/WR#
P4.3
NIC: Not Internaly Connected
5