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AT89C51RB2-SLSIM 其他数据使用手册 - ATMEL（爱特美尔）
制造商:
ATMEL（爱特美尔）
分类:
微控制器
封装:
PLCC-44
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AT89C51RB2-SLSIM数据手册
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Rev. 4105E–8051–02/08
1
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 V
CC
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
– 10k 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 Independent 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)
• Hardware Watchdog Timer (One-time enabled with Reset-Out)
• Power Control Modes:
– Idle Mode
– Power-down mode
– Power-off Flag
• Power supply: 4.5 to 5.5V or 2.7 to 3.6V
• Temperature ranges: Commercial (0 to +70°C) and Industrial (-40°C to +85°C)
• Packages: PDIL40, PLCC44, VQFP44
Description
T89C51RB2/RC2 is a high-performance FLASH version of the 80C51 8-bit microcon-
trollers. It contains a 16K or 32K byte Flash memory block for program and data.
The 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.
The T89C51RB2/RC2 retains all features of the 80C52 with 256 bytes of internal
RAM, a 7-source 4-level interrupt controller and three timer/counters.
In addition, the T89C51RB2/RC2 has a Programmable Counter Array, an XRAM of
1024 bytes, a Hardware Watchdog Timer, a Keyboard Interface, an SPI Interface,
8-bit
Microcontroller
with 16K/
32K byte Flash
T89C51RB2
T89C51RC2
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