參數(shù)資料
型號: AT80251G2D-SLSUM
廠商: Atmel
文件頁數(shù): 1/77頁
文件大小: 0K
描述: IC 8051 MCU ROMLESS 44PLCC
標準包裝: 972
系列: 8x251
核心處理器: C251
芯體尺寸: 8/16-位
速度: 24MHz
連通性: EBI/EMI,I²C,Microwire,SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器類型: ROMless
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
Rev. 4135F–8051–11/06
1
Features
Pin and Software Compatibility with Standard 80C51 Products and 80C51Fx/Rx/Rx+
Plug-In Replacement of Intel’s 8xC251Sx
C251 Core: Intel’s MCS251 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
8/16-bit
Microcontroller
with Serial
Communication
Interfaces
TSC80251G2D
TSC83251G2D
TSC87251G2D
AT80251G2D
AT83251G2D
AT87251G2D
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