计算机：台式机、工作站和服务器

货运担保

数据资料

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标题/型号

关键优势

QV PDF

1024位EEPROM iButton
DS1972

EPROM仿真模式，用于保护数据不被意外擦除

QV PDF

密码保护的32K字节EEPROM iButton
DS1977

QV PDF

历时记录器，带有闹钟功能
DS1682

业内首款非晶振历时计数器

Key Specifications: iButton Products
Part Number	Overview	Memory Type	Memory Size	Security Features	UniqueWare	Real-Time Clock
DS1972	iButton Memory	EEPROM	1K bits	-	No	No
DS1977	iButton Memory	EEPROM	32K Bytes	Password Protected	No	No
See All iButton Products (25)

Key Specifications: Timekeeping & Real-Time Clocks

Part Number

Functions

Time Format (hh = sec/100)

Date Format

Interface

Supply Voltage (V)

Memory Type

Memory Size (Bytes)

Number of Time of Day Alarms

Package

Operating Temp. Range (°C)

DS1682

•	Time/Temperature/Event Recorder

Binary

I²C

3
3.3
5

EEPROM

-40 to +85