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AT251G2DXXX-SLSUM

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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AT251G2DXXX-SLSUM 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
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