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AT251G2DXXX-RLTUM PDF预览

AT251G2DXXX-RLTUM

更新时间： 2024-11-11 04:33:07

品牌	Logo	应用领域
爱特美尔 - ATMEL		微控制器通信
页数	文件大小	规格书
77页	1265K
描述
8/16-bit Microcontroller with Serial Communication Interfaces

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中文翻译

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数据手册

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AT251G2DXXX-RLTUM 数据手册

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Features

• Pin and Software Compatibility with Standard 80C51 Products and 80C51Fx/Rx/Rx+

• Plug-In Replacement of Intel’s 8xC251Sx

• C251 Core: Intel’s MCS^®251 D-step Compliance

• 40-byte Register File

• Registers Accessible as Bytes, Words or Dwords

• Three-stage Instruction Pipeline

• 16-bit Internal Code Fetch

• Enriched C51 Instruction Set

• 16-bit and 32-bit ALU

• Compare and Conditional Jump Instructions

• Expanded Set of Move Instructions

• Linear Addressing

• 1 Kbyte of On-Chip RAM

• External Memory Space (Code/Data) Programmable from 64 kilobytes to 256 kilobytes

• TSC87251G2D: 32 kilobytes of On-Chip EPROM/OTPROM

– SINGLE PULSE Programming Algorithm

• TSC83251G2D: 32 kilobytes of On-Chip Masked ROM

• TSC80251G2D: ROMless Version

• Four 8-bit Parallel I/O Ports (Ports 0, 1, 2 and 3 of the Standard 80C51)

• Serial I/O Port: Full Duplex UART (80C51 Compatible) With Independent Baud Rate

Generator

8/16-bit

Microcontroller

with Serial

Communication

Interfaces

• SSLC: Synchronous Serial Link Controller

• TWI Multi-master Protocol

TSC80251G2D

TSC83251G2D

TSC87251G2D

AT80251G2D

AT83251G2D

AT87251G2D

• μWire and SPI Master and Slave Protocols

• Three 16-bit Timers/Counters (Timers 0, 1 and 2 of the Standard 80C51)

• EWC: Event and Waveform Controller

• Compatible with Intel’s Programmable Counter Array (PCA)

• Common 16-bit Timer/Counter Reference with Four Possible Clock Sources (Fosc/4,

Fosc/12, Timer 1 and External Input)

• Five Modules, Each with Four Programmable Modes:

– 16-bit Software Timer/Counter

– 16-bit Timer/Counter Capture Input and Software Pulse Measurement

– High-speed Output and 16-bit Software Pulse Width Modulation (PWM)

– 8-bit Hardware PWM Without Overhead

• 16-bit Watchdog Timer/Counter Capability

• Secure 14-bit Hardware Watchdog Timer

• Power Management

• Power-On Reset (Integrated on the Chip)

• Power-Off Flag (Cold and Warm Resets)

• Software Programmable System Clock

• Idle Mode

• Power-down Mode

• Keyboard Interrupt Interface on Port 1

• Non Maskable Interrupt Input (NMI)

• Real-Time Wait States Inputs (WAIT#/AWAIT#)

• ONCE Mode and Full Speed Real-time In-circuit Emulation Support (Third Party

Vendors)

• High Speed Versions:

– 4.5V to 5.5V

– 16 MHz and 24 MHz

• Typical Operating Current: 35 mA at 24 MHz

24 mA at 16 MHz

• Typical Power-down Current: 2 μA

• Low Voltage Version:

– 2.7V to 5.5V

– 16 MHz

Rev. 4135F–8051–11/06

1

12 3 4 5 6 7...77

中文翻译

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