AT89C51ID2 Atmel Corporation, AT89C51ID2 Datasheet - Page 154

• Manufacturer Part Number: AT89C51ID2
• Manufacturer: Atmel Corporation

Specifications of AT89C51ID2

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 2
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

Table of Contents
i
AT89C51ID2
Features................................................................................................. 1
Description ............................................................................................ 1
Block Diagram....................................................................................... 3
SFR Mapping......................................................................................... 4
Pin Configurations.............................................................................. 10
Oscillators ........................................................................................... 14
Enhanced Features............................................................................. 21
Dual Data Pointer Register DPTR...................................................... 25
Expanded RAM (XRAM) ..................................................................... 28
Reset .................................................................................................... 31
Power Monitor..................................................................................... 33
Timer 2 ................................................................................................. 35
Programmable Counter Array PCA................................................... 40
Overview............................................................................................................. 14
Registers............................................................................................................. 14
Functional Block Diagram................................................................................... 17
Operating Modes ................................................................................................ 17
Design Considerations........................................................................................ 19
Timer 0: Clock Inputs.......................................................................................... 20
X2 Feature .......................................................................................................... 21
Registers............................................................................................................. 30
Introduction ......................................................................................................... 31
Reset Input ......................................................................................................... 31
Reset Output....................................................................................................... 32
Description.......................................................................................................... 33
Auto-Reload Mode.............................................................................................. 35
Programmable Clock-Output .............................................................................. 36
Registers............................................................................................................. 38
PCA Capture Mode............................................................................................. 48
16-bit Software Timer/ Compare Mode............................................................... 48
High Speed Output Mode ................................................................................... 49
Pulse Width Modulator Mode.............................................................................. 50
4289C–8051–11/05