at83c21gc ATMEL Corporation, at83c21gc Datasheet - Page 4

• Manufacturer Part Number: at83c21gc
• Description: Gemcore Serial Lite Pro
• Manufacturer: ATMEL Corporation

Pin Description
Table 1. Port Signal Description
4
Port
P1.0
P1.1
P1.2
AT83C21GC
Signal
CPRES
Name
CC8
CIO
Internal
Supply
Power
CV
CV
Figure 2. 24-pin SSOP Pinout
Figure 3. 32-pin QFN Pinout
V
CC
CC
CC
ESD
4 kV
4 kV
4 kV
Type
I/O
I/O
I
P1.2/CPRES
P1.5/CRST
P1.4/CCLK
P1.3/CC4
P1.1/CC8
P1.0/CIO
P1.2/CPRES
Description
Smart Card Interface Function
Card I/O – Pull-up medium is lower than 20KΩ
Smart Card Interface Function
Card contact 8 – Pull-up medium must be less than 20KΩ
Smart Card Interface Function
Card presence
P1.4/CCLK
P1.5/CRST
CVcc
RST
P1.3/CC4
P1.1/CC8
P1.0/CIO
XTAL1
XTAL2
CVSS
C
V
RST
LI
CC
1
2
3
4
5
6
7
8
32
9
4
10
12
1
2
3
5
6
7
8
9
11
31
10
11
30
QFN32
12
29
SSOP24
28 27 26
13 14 15
16
25
17
14
24
23
22
21
20
19
18
16
15
13
24
23
22
21
20
19
18
17
P3.1/TxD
V
E
D
VSS
P3.0/RxD
P3.3/INT1/OE
P3.4/T0
P3.2/INT0
P3.5/CIO1/T1
P3.6/CCLK1/LED0
P3.7/CRST1/LED1
V
V
P3.0/RxD
P3.2/INT0
CC
Vss
Vss
P3.1/TxD
P3.3/INT1/OE
P3.5/CIO1/T1
P3.4/T0
CC
CC
4247DS–SCR–03/07