at83c5122 ATMEL Corporation, at83c5122 Datasheet - Page 10

• Manufacturer Part Number: at83c5122
• Description: At83c5123 C51 Microcontroller With Usb And Smart Card Reader Interfaces
• Manufacturer: ATMEL Corporation

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AT8xC5122/23
Figure 5. QFN64 Package Pinout
P1.2/CPRES
P5.7/KB7
P5.6/KB6
P5.5/KB5
P5.4/KB4
P5.3/KB3
P5.2/KB2
P5.1/KB1
P5.0/KB0
DVCC
CRST
CCLK
PSEN
CC8
CC4
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
64
18
63
19
62 61 60 59 58
20
21
22
QFN64
23
57 56 55 54 53
24
25
26
27
28
52
29
51 50 49
30
31 32
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P3.1/TxD
P1.6/SS
P2.7/A15
P3.0/RxD
P3.5/T1/CRST1
P3.2/INT0/LED0/CIO1
P4.0/MISO
P3.3/INT1
P4.1/MOSI
P3.4/T0/LED1
P4.2/SCK
P4.3/LED4
P3.6/WR/LED2
P4.4/LED5
RST
P4.5/LED6
4202E–SCR–06/06