HomedatasheetT89C51RC2-3CWIM

T89C51RC2-3CWIM Datasheet

8-bit Microcontroller with 16 Kbytes/ 32 Kbytes FLASH
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Description

Description
T89C51RB2/RC2 is a high performance FLASH version of the 80C51 8-bit microcontrollers. It contains a 16K or 32Kbytes Flash memory block for program and data. The 16 Kbytes or 32 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 VCC pin.

Features
• 80C52 Compatible
• 8051 pin and instruction compatible
• Four 8-bit I/O ports
• 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 VCC power supply.
• Boot ROM 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)
• 16K/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
• SPI Interface (Master / Slave Mode)
• 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)

Features

Parameters


Manufacturer information

ATMEL CORPORATION
Warm Hint

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