TSC80251G2D-24CB

MCU 8Bit/16Bit 8x251 C251 CISC ROMLess 3.3V/5V 44Pin PLCC

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

• 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

• 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, Automotive -40°C to +85°C ROM only

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

• Packages: PDIL 40, PLCC 44 and VQFP 44

• Options: Known Good Dice and Ceramic Packages