DS1218数据手册集成电路（IC）的控制器规格书PDF

描述 Description

The DS1218 Nonvolatile Controller Chip supplies circuitry required to render standard CMOS RAM nonvolatile. VCC is monitored using a precise comparator that detects power-fail and inhibits chip-enable holding a write-protect status until power supplies return to nominal levels. The DS1218 switches active power supplies between VCC and a battery source, whichever is greater. The switch has a voltage drop of less than 0.2V.

特性 Features

• Converts CMOS RAM into nonvolatile memories
• Unconditionally write protects when VCC is out of tolerance
• Automatically switches to battery when power fail occurs
• Space saving 8-pin PDIP or 8-pin 150 mil SO Packages
• Consumes less than 100nA of battery current

简介

DS1218属于集成电路（IC）的控制器。由制造生产的DS1218控制器该系列产品主要用于在采用不同通信协议和/或信令方法的端点之间提供信息连接。示例包括将 I2C 总线连接到 UART，将 USB 连接到 I2C、SPI、以太网或 UART、以太网 MAC 和 PHY 等的器件。此外，还包括用于通过为点对点通信设计的接口建立多路连接的器件，例如 USB 集线器控制器。