AT89C51IC2-RLTIL Atmel, AT89C51IC2-RLTIL Datasheet - Page 144

• Manufacturer Part Number: AT89C51IC2-RLTIL
• Description: IC 8051 MCU FLASH 32K 44VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51IC2-RLTIL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Table of Contents
i
AT89C51IC2
Features ................................................................................................. 1
Description ............................................................................................ 2
Block Diagram ....................................................................................... 3
SFR Mapping ......................................................................................... 4
Pin Configurations .............................................................................. 10
Oscillators ........................................................................................... 14
Enhanced Features ............................................................................. 21
Dual Data Pointer Register ................................................................ 25
Expanded RAM (XRAM) ..................................................................... 27
Timer 2 ................................................................................................. 30
Programmable Counter Array PCA ................................................... 35
Serial I/O Port ...................................................................................... 47
Interrupt System ................................................................................. 58
Overview............................................................................................................. 14
Registers............................................................................................................. 14
Functional Block Diagram................................................................................... 17
Operating Modes ................................................................................................ 17
Design Considerations........................................................................................ 19
Timer 0: Clock Inputs.......................................................................................... 20
X2 Feature and OSCA Clock Generation ........................................................... 21
Auto-Reload Mode.............................................................................................. 30
Programmable Clock-Output .............................................................................. 31
PCA Capture Mode............................................................................................. 43
16-bit Software Timer/ Compare Mode............................................................... 43
High Speed Output Mode ................................................................................... 44
Pulse Width Modulator Mode.............................................................................. 45
PCA Watchdog Timer ......................................................................................... 46
Framing Error Detection ..................................................................................... 47
Automatic Address Recognition.......................................................................... 48
Baud Rate Selection for UART for mode 1 and 3............................................... 50
UART Registers.................................................................................................. 54
Registers............................................................................................................. 59
4301D–8051–02/08