DS1212N数据手册集成电路（IC）的控制器规格书PDF

描述 Description

DESCRIPTION
The DS1212 Nonvolatile Controller x16 Chip is a CMOS circuit that solves the application problem of converting CMOS RAMs into nonvolatile memories. Incoming power is monitored for an out-of tolerance condition. When such a condition is detected, the chip enables are inhibited to accomplish write protection and the battery is switched on to supply the RAMs with uninterrupted power. Special circuitry uses a low-leakage CMOS process that affords precise voltage detection at extremely low battery consumption.
By combining the DS1212 Nonvolatile Controller chip and lithium batteries, nonvolatile RAM operation can be achieved for up to 16 CMOS memories.FEATURES
■ Converts full CMOS RAM into nonvolatile memory
■ Unconditionally write protects when VCC is out of tolerance
■ Automatically switches to battery when power-fail occurs
■ 4 to 16 decoder provides control for up to 16 CMOS RAMs
■ Consumes less than 100 nA of battery current
■ Tests battery condition on power-up
■ Provides for redundant batteries
■ Power fail signal can be used to interrupt processor on power failure
■ Optional 5% or 10% power-fail detection
■ Optional 28-pin PLCC surface mount package
■ Optional industrial temperature range of -40°C to +85°C

特性 Features

■ Converts full CMOS RAM into nonvolatile memory
■ Unconditionally write protects when VCC is out of tolerance
■ Automatically switches to battery when power-fail occurs
■ 4 to 16 decoder provides control for up to 16 CMOS RAMs
■ Consumes less than 100 nA of battery current
■ Tests battery condition on power-up
■ Provides for redundant batteries
■ Power fail signal can be used to interrupt processor on power failure
■ Optional 5% or 10% power-fail detection
■ Optional 28-pin PLCC surface mount package
■ Optional industrial temperature range of -40°C to +85°C

简介

DS1212N属于集成电路（IC）的控制器。由制造生产的DS1212N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。