器件名称: T89C51RD2-3CSIM
功能描述: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
文件大小: 1258.5KB 共104页
简 介:Features
80C52 Compatible
– 8051 Pin and Instruction Compatible – Four 8-bit I/O Ports (or 6 in 64/68 Pins Packages) – Three 16-bit Timer/Counters – 256 bytes Scratch Pad RAM – 7 Interrupt Sources With 4 Priority Levels ISP (In-System Programming) Using Standard VCC Power Supply Boot Flash Contains Low Level Flash Programming Routines and a Default Serial Loader High-Speed Architecture – 40 MHz in Standard Mode – 20 MHz in X2 Mode (6 Clocks/Machine Cycle) 64K 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) – 768 Bytes Selected at Reset for T87C51RD2 Compatibility Dual Data Pointer Variable Length MOVX for Slow RAM/Peripherals Improved X2 Mode with Independant Selection for CPU and Each Peripheral 2K bytes EEPROM Block for Data Storage – 100K Write Cycle Programmable Counter Array with – High Speed Output – Compare/Capture – Pulse Width Modulator Watchdog Timer Capabilities Asynchronous Port Reset Full-duplex Enhanced UART Low EMI (Inhibit ALE) – Hardware Watchdog Timer (One-time Enabled with Reset-out) Power Control Modes: – Idle Mode – Power-down Mode Power Supply: – M version: Commercial and Industrial 4.5V to 5.5V: 40 MHz (X1 Mode), 20 MHz (X2 Mode) 3V to 5.5V: 33 MHz (X1 Mode), 16 MHz (X2 Mode) – L version: Commercial and industrial 2.7V to 3.6V: 25 MHz (X1 Mode), 12 MHz (X2 Mode) Temperature Ranges: Commercial (0 to +70……
