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89C51IC2-CM Datasheet(PDF) 1 Page - ATMEL Corporation

Part # 89C51IC2-CM
Description  8-bit Flash Microcontroller with 2-wire Interface
Download  146 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

89C51IC2-CM Datasheet(HTML) 1 Page - ATMEL Corporation

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Rev. 4301A–8051–01/04
1
Features
80C52 Compatible
– 8051 Pin and Instruction Compatible
– Four 8-bit I/O ports + 2 I/O 2-wire Interface (TWI) Pins
– Three 16-bit Timer/Counters
– 256 bytes Scratch Pad RAM
– 10 Interrupt Sources with 4 Priority Levels
– Dual Data Pointer
Variable Length MOVX for Slow RAM/Peripherals
ISP (In-System-Programming) Using Standard V
cc Power Supply
Boot ROM Contains Low Level Flash Programming Routines and a Default Serial
Loader
High-speed Architecture
– In Standard Mode:
40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)
60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
– In X2 mode (6 Clocks/machine cycle)
20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)
30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
– 32K Bytes On-chip Flash Program/Data Memory
– Byte and Page (128 Bytes) Erase and Write
– 100K Write Cycles
On-chip 1024 Bytes Expanded RAM (XRAM)
– Software Selectable Size (0, 256, 512, 768, 1024 Bytes)
– 256 Bytes Selected at Reset for TS87C51RB2/RC2 Compatibility
Keyboard Interrupt Interface on Port P1
400-Kbits/s Multimaster 2-wire Interface
SPI Interface (Master/Slave Mode)
Sub-clock 32 kHz Crystal Oscillator
8-bit clock Prescaler
Improved X2 Mode With Independant Selection for CPU and Each Peripheral
Programmable Counter Array 5 Channels with:
– High Speed Output
– Compare/Capture
– Pulse Width Modulator
– Watchdog Timer Capabilities
Asynchronous Port Reset
Full-duplex Enhanced UART
Dedicated Baud Rate Generator for UART
Low EMI (Inhibit ALE)
Hardware Watchdog Timer (One-time enabled with Reset-Out)
Power Control Modes:
–Idle Mode
– Power-down Mode
– Power-Off Flag
Power Supply:
– 2.7 to 3.6 (3V Version)
– 2.7 to 5.5V (5V Version)
Temperature Ranges: Commercial (0 to +70
°C) and Industrial (-40°C to +85°C)
Packages: PLC44, VQFP44
8-bit Flash
Microcontroller
with 2-wire
Interface
AT89C51IC2


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