AT251G2DXXX-3CSUM中文资料8/16-bit Microcontroller with Serial Communication Interfaces数据手册Microchip规格书

描述 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. The TSC80251G2D derivatives are pin and software compatible with standard 80C51/Fx/Rx/Rx+ with extended on-chip data memory (1 Kbyte RAM) and up to 256 kilobytes of external code and data. Additionally, the TSC83251G2D and TSC87251G2D provide on-chip code memory: 32 kilobytes ROM and 32 kilobytes EPROM/OTPROM respectively.

特性 Features

• Pin and Software Compatibility with Standard 80C51 Products and 80C51Fx/Rx/Rx+
• C251 Core: Intel’s MCS®251 D-step Compliance
• Registers Accessible as Bytes, Words or Dwords
• 16-bit Internal Code Fetch
• 16-bit and 32-bit ALU
• Expanded Set of Move Instructions
• 1 Kbyte of On-Chip RAM
• TSC87251G2D: 32 kilobytes of On-Chip EPROM/OTPROM
• TSC83251G1D: 16 kilobytes of On-Chip Masked ROM
• TSC80251G1D: ROMless Version
• Serial I/O Port: Full Duplex UART (80C51 Compatible) With Independent Baud Rate
• SSLC: Synchronous Serial Link Controller
• μWire and SPI Master and Slave Protocols
• EWC: Event and Waveform Controller
• Common 16-bit Timer/Counter Reference with Four Possible Clock Sources (Fosc/4,
• Five Modules, Each with Four Programmable Modes:
• 16-bit Watchdog Timer/Counter Capability
• Power Management
• Power-Off Flag (Cold and Warm Resets)
• Idle Mode
• Keyboard Interrupt Interface on Port 1
• Real-Time Wait States Inputs (WAIT#/AWAIT#)
• High Speed Versions:
• Typical Operating Current: 35 mA at 24 MHz
• Typical Power-down Current: 2 μA
• Typical Operating Current:11 mA at 3V
• Temperature Ranges: Commercial (0°C to +70°C), Industrial (-40°C to +85°C)
• Packages: PDIL 40, PLCC 44 and VQFP 44, CDIL 40 and CQPJ 44 with Window
• Options: Known Good Dice and Ceramic Packages