89C51IC2-CM ATMEL [ATMEL Corporation], 89C51IC2-CM Datasheet
89C51IC2-CM
Manufacturer Part Number
89C51IC2-CM
Description
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.89C51IC2-CM.pdf
(146 pages)
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- Download datasheet (2Mb)
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80C52 Compatible
Variable Length MOVX for Slow RAM/Peripherals
ISP (In-System-Programming) Using Standard V
Boot ROM Contains Low Level Flash Programming Routines and a Default Serial
Loader
High-speed Architecture
On-chip 1024 Bytes Expanded RAM (XRAM)
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:
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:
Power Supply:
Temperature Ranges: Commercial (0 to +70 C) and Industrial (-40 C to +85 C)
Packages: PLC44, VQFP44
– 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
– In Standard Mode:
– In X2 mode (6 Clocks/machine cycle)
– 32K Bytes On-chip Flash Program/Data Memory
– Byte and Page (128 Bytes) Erase and Write
– 100K Write Cycles
– Software Selectable Size (0, 256, 512, 768, 1024 Bytes)
– 256 Bytes Selected at Reset for TS87C51RB2/RC2 Compatibility
– High Speed Output
– Compare/Capture
– Pulse Width Modulator
– Watchdog Timer Capabilities
– Idle Mode
– Power-down Mode
– Power-Off Flag
– 2.7 to 3.6 (3V Version)
– 2.7 to 5.5V (5V Version)
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)
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)
cc
Power Supply
8-bit Flash
Microcontroller
with 2-wire
Interface
AT89C51IC2
Rev. 4301A–8051–01/04
1
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