AT89C51IC2 Atmel Corporation, AT89C51IC2 Datasheet - Page 10

• Manufacturer Part Number: AT89C51IC2
• Manufacturer: Atmel Corporation

Specifications of AT89C51IC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

Pin Configurations
Figure 2. Pin Configurations
10
AT89C51IC2
P1.5/CEX2/MISO
P1.7/CEx4/MOSI
P1.6/CEX3/SCK
P1.7/CEX4/MOSI
P1.5/CEX2/MISO
P1.6/CEX3/SCK
PI2.1/SDA
P3.2/INT0
P3.3/INT1
P3.0/RxD
P3.1/TxD
PI2.1/SDA
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.0/RxD
P3.1/TxD
P3.4/T0
P3.5/T1
RST
RST
14
10
11
12
13
15
16
17
7
8
9
18 19
4
10
1
2
3
5
6
7
8
9
11
6
44
12 13
5 4 3 2 1
20
43 42 41 40 39
21
14
15
22
PLCC44
VQFP44 1.4
16
23
17
24
44 43 42 41 40
38 37 36 35 34
18
25
19
26
20
27 28
21 22
32
38
37
36
35
34
33
31
30
29
39
26
33
32
30
28
27
25
24
23
31
29
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA
PI2.0/SCL
ALE/PROG
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA
PI2.0/SCL
ALE/PROG
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
4301D–8051–02/08