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状态
型号	状态
DS2250	状况：生产中，但该系列产品中的某些型号已经停产。请查看订购信息。
DS2250T	状况：生产中，但该系列产品中的某些型号已经停产。请查看订购信息。

概述

完整的数据资料 (PDF, 456kB) 英文 下载 The DS2250(T) soft microcontroller module is a fully 8051-compatible 8-bit CMOS microcontroller that offers "softness" in all aspects of its application. This is accomplished through the comprehensive use of nonvolatile technology to preserve all information in the absence of system VCC. The internal program/data memory space is implemented using 8, 32, or 64kB of nonvolatile CMOS SRAM. Furthermore, internal data registers and key configuration registers are also nonvolatile. An optional real-time clock gives permanently powered timekeeping. The clock keeps time to a hundredth of a second using an on-board crystal. All nonvolatile memory and resources are maintained for over 10 years at room temperature in the absence of power.

本产品包含金属锂电池。 参见含电池设备的运输要求使用标准。

关键特性

8-bit 8051-Compatible Microcontroller Adapts to Task-At-Hand: 8, 32, or 64kB of NV RAM for Program and/or Data Memory Storage Initial Downloading of Software in End System via On-Chip Serial Port Capable of Modifying its own Program and/or Data Memory in End Use High-Reliability Operation: Maintains all Nonvolatile Resources for 10 Years in the Absence of VCC Power-Fail Reset Early Warning Power-Fail Interrupt Watchdog Timer Software Security Feature: Executes Encrypted Software to Prevent Unauthorized Disclosure On-Chip, Full-Duplex Serial I/O Ports Two On-Chip Timer/Event Counters 32 Parallel I/O Lines Compatible with Industry Standard 8051 Instruction Set Permanently Powered Real-Time Clock 通过美国保险商实验室协会(UL®)认证

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