AT89C51RC2 Atmel Corporation, AT89C51RC2 Datasheet - Page 63

• Manufacturer Part Number: AT89C51RC2
• Manufacturer: Atmel Corporation

Specifications of AT89C51RC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 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
4180E–8051–10/06
Table 50. Interrupt Sources and Vector Addresses
Number
0
1
2
3
4
5
6
7
8
9
Polling Priority
0
1
2
3
4
6
7
5
8
9
Interrupt Source
Keyboard
Timer 0
Timer 1
Timer 2
UART
Reset
INT0
INT1
PCA
SPI
CF + CCFn (n = 0-4)
AT89C51RB2/RC2
TF2+EXF2
Interrupt
Request
KBDIT
RI+TI
SPIIT
TF0
IE0
IE1
IF1
Address
Vector
0000h
0003h
000Bh
0013h
001Bh
0023h
002Bh
0033h
003Bh
004Bh
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