AT89C51AC3 Atmel Corporation, AT89C51AC3 Datasheet - Page 4

• Manufacturer Part Number: AT89C51AC3
• Manufacturer: Atmel Corporation

Specifications of AT89C51AC3

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 2.25
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

4
AT89C51AC3
P1.4/AN4/CEX1
P1.5/AN5/CEX2
P1.6/AN6/CEX3
P1.7/AN7/CEX4
P1.4/AN4/CEX1
P1.5/AN5/CEX2
P1.6/AN6/CEX3
P1.7/AN7/CEX4
P3.5/T1/SS
P3.5/T1/SS
P3.2/INT0
P3.3/INT1
P4.3/SCK
P3.0/RxD
P3.1/TxD
P3.2/INT0
P3.3/INT1
P4.3/SCK
P3.0/RxD
P3.1/TxD
P3.4/T0
P3.4/T0
NC
NC
NC
NC
EA
EA
NC
10
11
12
13
14
15
16
17
18
19
8
9
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
21 22
7
6
23
5 4 3 2 1
24
TESTI must be connected to VSS
TESTI must be connected to VSS
25
PLCC52
26
VQFP64
27
52 51 50 49 48
28
29
30 31
32 33
47
46
45
44
43
42
41
40
39
38
37
36
35
34
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
ALE
PSEN
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4 /AD4
P0.3 /AD3
P0.2 /AD2
P0.1 /AD1
P0.0 /AD0
P2.0/A8
P4.4/MOSI
NC
NC
ALE
PSEN
P0.7/AD7
P0.6/AD6
NC
P0.5/AD5
NC
NC
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P4.4/MOSI
P0.0/AD0
P2.0/A8
4383D–8051–02/08