DS2251T

128k柔性微控制器模块

数据手册 (Rev. 2)

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8-bit 8051-compatible microcontroller:
- 8051 instruction set
- 32 parallel I/O port pins
- 128-bytes scratchpad RAM
- Two 16-bit timer / counters
- 1 UART
Reliability enhancements:
- >10 years data retention (with appropriate battery and RAM)
- Early warning power-fail interrupt
- Power-fail reset
- Precision watchdog timer
- Lithium-backed memory
Ease of use and adaptability:
- 32, 64, or 128kbytes nonvolatile SRAM for program and/or data storage
- On-chip serial port for software downloaded in end system
- Partitioned code and data segments
- Nonmultiplexed bytewide address/data bus for memory access
- ROM-based Serial Bootstrap Loader for in-system reprogramming
Permanently powered real-time clock
Operating ranges:
- 5V±5%
- 16MHz system clock speed (max)
- 0°C to 70°C

参考资料

数据手册 2

DS2251T: 128k Soft Microcontroller Module Data Sheet (Rev.2) 06/16/2006

DS2251T: 128k柔性微控制器模块 Data Sheet 01/01/1900

应用笔记 2

基于8051的微控制器在系统编程 10/14/2004

Interfacing 8051-based Microcontrollers to an SCI Port 12/17/2004

技术文章 6

Interfacing the DS2760 1-Wire High-Precision Li-Ion Battery Monitor and Protection IC in a Microcontroller Environment 08/27/2002

Using a EconOscillator™ to Clock an 8051 Microprocessor 05/16/2008

DS5002FP Memory Expansion Techniques 03/29/2001

Design Guidelines for Microcontrollers Incorporating NV RAM 05/01/2001

Using the Secure Microcontroller Watchdog Timer 08/10/2001

Micro Tutorial 1: Understanding DC Electrical Characteristics of Microcontrollers 06/04/2002

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