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AT89C51ID2 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT89C51ID2 Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 157 page  4289C–8051–11/05 1 Features • 80C52 Compatible – 8051 Instruction Compatible – Six 8-bit I/O Ports (64 pins or 68 Pins Versions) – Four 8-bit I/O Ports (44 Pins Version) – Three 16-bit Timer/Counters – 256 bytes Scratch Pad RAM – 10 Interrupt Sources With 4 Priority Levels • ISP (In-System Programming) Using Standard V CC Power Supply • Integrated Power Monitor (POR/PFD) to Supervise Internal 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) • 64K bytes On-chip Flash Program/Data Memory – Byte and Page (128 bytes) Erase and Write – 100k Write Cycles • On-chip 1792 bytes Expanded RAM (XRAM) – Software Selectable Size (0, 256, 512, 768, 1024, 1792 bytes) – 768 bytes Selected at Reset for T89C51RD2 Compatibility • On-chip 2048 bytes EEPROM block for Data Storage – 100k Write Cycles • Dual Data Pointer • 32 KHz Crystal Oscillator • Variable Length MOVX for Slow RAM/Peripherals • Improved X2 Mode with Independant Selection for CPU and Each Peripheral • Keyboard Interrupt Interface on Port 1 • SPI Interface (Master/Slave Mode) • 8-bit Clock Prescaler • Two Wire Interface 400K bit/s • Programmable Counter Array with: – High Speed Output – Compare/Capture – Pulse Width Modulator – Watchdog Timer Capabilities • Asynchronous Port Reset • Full Duplex Enhanced UART with Dedicated Internal Baud Rate Generator • Low EMI (inhibit ALE) • Hardware Watchdog Timer (One-time Enabled with Reset-Out), Power-Off Flag • Power Control Modes: Idle Mode, Power-down Mode • Power Supply: 2.7V to 5.5V • Temperature Ranges: Industrial (-40 to +85°C) • Packages: PLCC44, VQFP44 Description AT89C51ID2 is a high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. It contains a 64 Kbytes Flash memory block for program and for data. The 64 Kbytes Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software. The programming voltage is internally generated from the standard V CC pin. 8-bit Flash Microcontroller AT89C51ID2 |
Similar Part No. - AT89C51ID2_14 |
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Similar Description - AT89C51ID2_14 |
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