Part Number: AT89C51ID2-SLSUM
Description: 8- bit Microcontrollers (MCU) 64K FLASH 32 kHz 3.5-5 V Ind.
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· 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 VCC 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, 1