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DS2251T-128-16 PDF预览

DS2251T-128-16

更新时间: 2024-10-28 22:17:15
品牌 Logo 应用领域
达拉斯 - DALLAS 微控制器
页数 文件大小 规格书
20页 655K
描述
128k Soft Microcontroller Module

DS2251T-128-16 技术参数

生命周期:Transferred包装说明:SIMM, SSIM72
Reach Compliance Code:unknown风险等级:5.83
具有ADC:NO其他特性:128 KBYTES NONVOLATILE SRAM
地址总线宽度:14位大小:8
边界扫描:NOCPU系列:8051
最大时钟频率:16 MHzDAC 通道:NO
DMA 通道:NO外部数据总线宽度:8
格式:FIXED POINT集成缓存:NO
JESD-30 代码:R-XSMA-N72低功率模式:YES
DMA 通道数量:外部中断装置数量:2
I/O 线路数量:32串行 I/O 数:1
端子数量:72计时器数量:2
片上数据RAM宽度:8片上程序ROM宽度:
最高工作温度:70 °C最低工作温度:
PWM 通道:NO封装主体材料:UNSPECIFIED
封装代码:SIMM封装等效代码:SSIM72
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
电源:5 V认证状态:Not Qualified
RAM(字节):131072RAM(字数):65536
ROM(单词):0速度:16 MHz
子类别:Microcontrollers最大压摆率:45 mA
最大供电电压:5.5 V最小供电电压:4.5 V
标称供电电压:5 V表面贴装:NO
技术:CMOS温度等级:COMMERCIAL
端子形式:NO LEAD端子节距:1.27 mm
端子位置:SINGLEuPs/uCs/外围集成电路类型:MICROCONTROLLER

DS2251T-128-16 数据手册

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DS2251(T)  
128k Soft Microcontroller Module  
www.dalsemi.com  
FEATURES  
8051-compatible microcontroller adapts to its  
PIN ASSIGNMENT  
task  
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-
-
-
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32K, 64K, or 128K bytes of nonvolatile  
SRAM for program and/or data storage  
In-system programming via on-chip serial  
port  
Capable of modifying its own program or  
data memory in the end system  
Provides separate Byte-wide bus for  
peripherals  
Performs CRC-16 check of NV RAM  
memory  
High-reliability operation  
-
Maintains all nonvolatile resources for  
over 10 years in the absence of power  
Power-fail reset  
Early Warning Power-fail Interrupt  
Watchdog Timer  
Lithium backed memory remembers  
system state  
-
-
-
-
-
Precision reference for power monitor  
Fully 8051-compatible  
-
-
-
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128 bytes scratchpad RAM  
Two timer/counters  
On-chip serial port  
32 parallel I/O port pins  
Permanently powered real time clock  
72-Pin SIMM  
DESCRIPTION  
The DS2251T 128k Soft Microcontroller Module is an 8051-compatible microcontroller module based on  
nonvolatile RAM technology. It is designed for systems that need large quantities of nonvolatile memory.  
Like other members of the Secure Microcontroller family, it provides full compatibility with the 8051  
instruction set, timers, serial port, and parallel I/O ports. By using NV RAM instead of ROM, the user can  
program, then reprogram the microcontroller while in-system. The application software can even change  
its own operation. This allows frequent software upgrades, adaptive programs, customized systems, etc.  
In addition, by using NV RAM, the DS2251T is ideal for data logging applications. The powerful real  
time clock includes interrupts for time stamp and date. It keeps time to one-hundredth of seconds using its  
onboard 32 kHz crystal.  
1 of 20  
011800  

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