AT80C51RA2-3CSUM 带有512K系统内可编程ROM/OTP存储器PDIL-40封装

RAM (Bytes)	512
F.max (MHz)	60
Vcc (V)	2.7—5.5
I/O Pins	32
UART	1
16-bit Timers	3
Watchdog	Yes
Packages	PDIP 40 LQFP 44 PLCC 44
Pb-Free Packages	PDIP 40 LQFP 44 PLCC 44

AT80C51RA2-3CSUM 特性

• 80C52 Compatible
  – 8051 pin and instruction compatible
  – Four 8-bit I/O ports
  – Three 16-bit timer/counters
  – 256 bytes scratchpad RAM
• High-Speed Architecture
  – 40 MHz @ 5V, 30MHz @ 3V
  – X2 Speed Improvement capability (6 clocks/machine cycle)
  – 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to
  – 60 MHz @ 5V, 40 MHz @ 3V)
• Dual Data Pointer
• On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-bytes)
• On-chip eXpanded RAM (XRAM) (256 or 768 bytes)
• Programmable Clock Out and Up/Down Timer/Counter 2
• Programmable Counter Array with
  – High Speed Output,
  – Compare / Capture,
  – Pulse Width Modulator,
  – Watchdog Timer Capabilities
• Hardware Watchdog Timer (One-time enabled with Reset-Out)
• 2 extra 8-bit I/O ports available on RD2 with high pin count packages
• Asynchronous port reset
• Interrupt Structure with
  – 7 Interrupt sources,
  – 4 level priority interrupt system
• Full duplex Enhanced UART
  – Framing error detection
  – Automatic address recognition
• Low EMI (inhibit ALE)
• Power Control modes
  – Idle mode
  – Power-down mode
  – Power-off Flag
• Once mode (On-chip Emulation)
• Power supply: 4.5-5V, 2.7-5.5V
• Temperature ranges: Commercial (0 to 70oC) and Industrial (-40 to 85oC)
• Packages: PDIL40, PLCC44, VQFP44 1.4, PLCC68, VQFP64 1.4

AT80C51RA2-3CSUM 概述

Atmel TS8xC51Rx2 is a high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontroller. The TS8xC51Rx2 retains all features of the 80C51 with extended ROM/EPROM capacity (16/32/64 Kbytes), 256 bytes of internal RAM, a 7-source , 4-level interrupt system, an on-chip oscilator and three timer/counters. In addition, the TS80C51Rx2 has a Programmable Counter Array, an XRAM of 256 or 768 bytes, a Hardware Watchdog Timer, a more versatile serial channel that facilitates multiprocessor communication (EUART) and an X2 speed improvement mechanism.

The fully static design of the TS80C51Rx2 allows to reduce system power consumption by
bringing the clock frequency down to any value, even DC, without loss of data. The TS80C51Rx2 has 2 software-selectable modes of reduced activity for further reduction in power consumption. In the idle mode the CPU is frozen while the timers, the serial port and the interrupt system are still operating. In the power-down mode the RAM is saved and all other functions are inoperative.

AT80C51RA2-3CSUM 订购型号

Part Number	描述
AT80C51RA2-SLSIM	OBSOLETE （停产）
AT80C51RA2-RLTIM
AT80C51RA2-3CSCL
AT80C51RA2-SLSCL
AT80C51RA2-3CSIM
AT80C51RA2-RLTCL
AT80C51RA2-3CSCV
AT80C51RA2-SLSCV
AT80C51RA2-RLTCV
AT80C51RA2-3CSIV
AT80C51RA2-SLSIV
AT80C51RA2-RLSIV

AT80C51RA2-3CSUM 替代型号

Part Number	Memory size	Supply Voltage	Temperature Range	Max Frequency	Package	Packing
AT80C51RA2-3CSUM	Romless	5V	Industrial Green	40 MHz (20 MHz X2)	PDIL40	Stick
AT80C51RA2-SLSUM	Romless	5V	Industrial Green	40 MHz (20 MHz X2)	PLCC44	Stick
AT80C51RA2-RLTUM	Romless	5V	Industrial Green	40 MHz (20 MHz X2)	VQFP44	Tray
AT80C51RA2-3CSUL	Romless	3-5V	Industrial Green	30 MHz (20 MHz X2)	PDIL40	Stick
AT80C51RA2-SLSUL	Romless	3-5V	Industrial Green	30 MHz (20 MHz X2)	PLCC44	Stick
AT80C51RA2-RLTUL	Romless	3-5V	Industrial Green	30 MHz (20 MHz X2)	VQFP44	Tray

AT80C51RA2-3CSUM 应用技术支持与电子电路设计开发资源下载

1. AT80C51RA2 数据手册DataSheet 下载. PDF
2. 80C51微控制器的复位输入. PDF (编号: Tech 8051 00049)
3. 80C51在系统Flash编程. PDF (编号:8051 00050)