AT83251G2D-3CSUM中文资料爱特梅尔数据手册PDF规格书

Description

The TSC80251G2D products are derivatives of the Atmel Microcontroller family based on the 8/16-bit C251 Architecture. This family of products is tailored to 8/16-bit microcontroller applications requiring an increased instruction throughput, a reduced operating frequency or a larger addressable memory space. The architecture can provide a significant code size reduction when compiling C programs while fully preserving the legacy of C51 assembly routines.

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

• TSC83251G1D: 16 kilobytes of On-Chip Masked ROM

• TSC83251G1D: 32 kilobytes of On-Chip Masked ROM

• TSC80251G1D: 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

• SSLC: Synchronous Serial Link Controller

• TWI Multi-master Protocol

• 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

• Typical Operating Current:11 mA at 3V

• Typical Power-down Current: 1 μA

• Temperature Ranges: Commercial (0°C to +70°C), Industrial (-40°C to +85°C)

• Option: Extended Range (-55°C to +125°C)

• Packages: PDIL 40, PLCC 44 and VQFP 44, CDIL 40 and CQPJ 44 with Window

• Options: Known Good Dice and Ceramic Packages

Typical Applications

• ISDN Terminals

• High-Speed Modems

• PABX (SOHO)

• Line Cards

• DVD ROM and Players

• Printers

• Plotters

• Scanners

• Banking Machines

• Barcode Readers

• Smart Cards Readers

• High-End Digital Monitors

• High-End Joysticks

• High-end TV’s