AT89C51IC2 Atmel Corporation, AT89C51IC2 Datasheet - Page 66

• 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

Interrupt Sources and
Vector Addresses
66
AT89C51IC2
Table 54. Interrupt Sources and Vector Addresses
Number
10
0
1
2
3
4
5
6
7
8
9
Polling Priority
10
0
1
2
3
4
6
7
5
8
9
Interrupt Source
Keyboard
Timer 0
Timer 1
Timer 2
UART
Reset
INT0
INT1
PCA
TWI
SPI
CF + CCFn (n = 0-4)
TF2+EXF2
Interrupt
Request
KBDIT
TWIIT
RI+TI
SPIIT
TF0
IE0
IE1
IF1
4301D–8051–02/08
Address
Vector
000Bh
001Bh
002Bh
003Bh
004Bh
0000h
0003h
0013h
0023h
0033h
0043h