AT83R5122 ， AT8xC5122 / 23
图5中。
QFN64封装引脚
P1.7/CCLK1
VREF
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
DVCC
P1.2/CPRES
CC8
P5.7/KB7
P5.6/KB6
CRST
P5.5/KB5
P5.4/KB4
CC4
P5.3/KB3
P5.2/KB2
CCLK
P5.1/KB1
P5.0/KB0
PSEN
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
P3.7/RD/LED3
P0.1/AD1
P0.0/AD0
XTAL1
ALE
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
XTAL2
CVCC
LI
CVSS
VCC
48
47
46
45
44
43
42
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
P2.6/A14
41
40
39
38
37
36
35
34
33
P2.0/A8
P2.1/A9
AVCC
PLLF
QFN64
AVSS
CIO
VCC
D+
D-
9
4202F–SCR–07/2008
