Rainbow Electronics AT89C5122 - Manual (Page 11)

11
AT8xC5122/23
4202E–SCR–06/06
Low Pin Count Package
Description
AT8xC5122 and AT83C5123
versions Figure 6. PLCC28 Package Pinout
AT83C5123 version Figure 7. VQFP32 Package Pinout
CIO
PLCC28
P3.1/TxD
CCLK
VSS
CC4
DVCC
CC8
XT
AL
1
XT
AL
2
LI
VC
C
P
3
.7/LE
D
3
CV
CC
CV
S
S
P3.6/LED2
CRST P3.3/INT1
P1.2/CPRES
D- D+ AV
C
C
AV
S
S
PL
L
F
P3.2/INT0/LED0
P3.4/T0/LED1
P3.0/RxD
1 2 3 4 28 27 26
5
6
7
8
9
10
11
25
24
23
22
21
20
19
15 14 13 12 16 17 18
VR
E
F
RST
CIO
VQFP32
P3.1/TxD
CCLK
P5.0
CC4
DVCC
CC8
XT
AL
1 LI
VC
C
P
3
.7
/LE
D
3
CV
CC
CV
S
S
P3.6/LED2
CRST
P1.2/CPRES
D- D+ AV
C
C
AV
S
S
PL
L
F
P3.4/T0/LED1
P3.0/RxD
28 27 26
1
2
3
4
5
6
7
24
23
22
21
20
19
18
12 11 10 9 13 14 15
VSS 8
16
17
P1.6
P3.5/T1/CRST1
P1
.7
/C
C
L
K1
VR
E
F
25 29 30 31 32
XT
AL
2
RS
T
P3.2/INT0/LED0/CIO1
P3.3/INT1