二极管

USB

三极管

可控硅(晶闸管)

场效应管(MOSFET)

集成电路

连接器

LED系列产品

电感器

继电器

传感器

电容器

电阻器

保护器件

光电器件

压电晶体

开关原件

功率模块

DS1554FEATURES
 Integrated NV SRAM, Real-Time Clock
(RTC), Crystal, Power-Fail Control Circuit,
and Lithium Energy Source
 Clock Registers are Accessed Identically to
the Static RAM; These Registers Reside in
the 16 Top RAM Locations
 Century Byte Register (i.e., Y2K Compliant)
 Totally Nonvolatile with Over 10 Years of
Operation in the Absence of Power
 Precision Power-On Reset
 Programmable Watchdog Timer and RTC
Alarm
 BCD-Coded Year, Month, Date, Day, Hours,
Minutes, and Seconds with Automatic Leap-
Year Compensation Valid Up to the Year
2100
 Battery Voltage-Level Indicator Flag
 Power-Fail Write Protection Allows for ±10%
VCC Power-Supply Tolerance
 Lithium Energy Source is Electrically
Disconnected to Retain Freshness Until
Power is Applied for the First Time
 Also Available in Industrial Temperature
Range: -40°C to +85°C