AT89C51IC2 Atmel Corporation, AT89C51IC2 Datasheet - Page 145

• 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

4301D–8051–02/08
Power Management ............................................................................ 67
Serial Port Interface (SPI) ................................................................... 71
Keyboard Interface ............................................................................. 80
2-wire Interface (TWI) ......................................................................... 84
Hardware Watchdog Timer .............................................................. 102
Power-off Flag ................................................................................... 104
ONCE(TM) Mode (ON Chip Emulation) ........................................... 105
Reduced EMI Mode ........................................................................... 106
Flash EEPROM Memory ................................................................... 107
Electrical Characteristics ................................................................. 128
Interrupt Sources and Vector Addresses............................................................ 66
Reset .................................................................................................................. 67
Reset Recommendation to Prevent Flash Corruption ........................................ 69
Idle Mode ............................................................................................................ 69
Power-down Mode.............................................................................................. 69
Features.............................................................................................................. 71
Signal Description............................................................................................... 71
Functional Description ........................................................................................ 73
Registers............................................................................................................. 81
Description.......................................................................................................... 86
Notes .................................................................................................................. 89
Registers............................................................................................................. 99
Using the WDT ................................................................................................. 102
WDT During Power Down and Idle................................................................... 103
Features............................................................................................................ 107
Flash Programming and Erasure...................................................................... 107
Flash Registers and Memory Map.................................................................... 108
Flash Memory Status........................................................................................ 111
Memory Organization ....................................................................................... 111
Bootloader Architecture .................................................................................... 112
ISP Protocol Description................................................................................... 116
Functional Description ...................................................................................... 117
Flow Description ............................................................................................... 118
API Call Description.......................................................................................... 126
Absolute Maximum Ratings ..............................................................................128
DC Parameters for Standard Voltage ............................................................... 128
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