AT89C51RB2-SLSCM Datasheet

IC型號：
AT89C51RB2-SLSCM
PDF描述：
8-bit Microcontroller with 16K/ 32K Bytes Flash
文件大小：
1440.17KB
PDF頁數(shù)：
125頁
芯片廠家：
ATMEL

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Features

鈥?/div>

80C52 Compatible

鈥?8051 Pin and Instruction Compatible

鈥?Four 8-bit I/O Ports

鈥?Three 16-bit Timer/Counters

鈥?256 Bytes Scratch Pad RAM

鈥?9 Interrupt Sources with 4 Priority Levels

鈥?Dual Data Pointer

Variable Length MOVX for Slow RAM/Peripherals

ISP (In-system Programming) Using Standard V

Power Supply

Boot ROM Contains Low Level Flash Programming Routines and a Default Serial

Loader

High-speed Architecture

鈥?48 MHz in Standard Mode and Internal Code Execution (40 MHz for external code)

鈥?24 MHz in X2 Mode and internal code execution (20 MHz for external code)

鈥?16K/32K Bytes On-chip Flash Program/Data Memory

鈥?Byte and Page (128 Bytes) Erase and Write

鈥?100K Write Cycles

On-chip 1024 Bytes Expanded RAM (XRAM)

鈥?Software Selectable Size (0, 256, 512, 768, 1024 Bytes)

鈥?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

鈥?High-speed Output

鈥?Compare/Capture

鈥?Pulse Width Modulator

鈥?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

鈥?Idle Mode

鈥?Power-down Mode

鈥?Power-off Flag

Power Supply:

鈥?2.7 to 3.6 (3V Version)

鈥?2.7 to 5.5V (5V Version)

Temperature Ranges: Commercial (0 to +70擄C) and Industrial (-40擄C to +85擄C)

Packages: PDIL40, PLCC44, VQFP44

鈥?/div>

8-bit

Microcontroller

with 16K/

32K Bytes Flash

AT89C51RB2

AT89C51RC2

鈥?/div>

Description

The AT89C51RB2/RC2 is a high-performance Flash version of the 80C51 8-bit micro-

controllers. It contains a 16K or 32K Bytes 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 VCC pin.

The AT89C51RB2/RC2 retains all features of the 80C52 with 256 Bytes of internal

RAM, a 9-source 4-level interrupt controller and three timer/counters.

Rev. 4180B鈥?051鈥?4/03

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