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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