Datasheet > DS1422

DS1422

更新时间： 2024-11-22 23:48:43

品牌	Logo	应用领域
其他 - ETC		内存集成电路 OTP只读存储器
页数	文件大小	规格书
2页	27K
描述
1 kbit Add-Only UniqueWare Button

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

DS1422 数据手册

DS1982/5/6U

UniqueWare iButton^TM

www.dalsemi.com

SPECIAL FEATURES

COMMON iButton FEATURES

ꢀ Multidrop controller for MicroLAN

ꢀ Digital identification and information by

momentary contact

ꢀ Chip–based data carrier compactly stores

information

ꢀ 1024 bits, 16K bits or 64K bits Electrically

Programmable Read Only Memory

(EPROM) communicates with the economy

of one signal plus ground

ꢀ

Unique, factory lasered and tested 64–bit

registration number (8–bit family code, 36–bit

serialization, 12–bit UniqueWare Identifier

5E7H, 8–bit CRC tester) assures absolute

traceability because no two parts are alike

ꢀ Data can be accessed while affixed to object

ꢀ

Economically communicates to bus master with

a single digital signal at 16.3k bits per second

Standard 16 mm diameter and 1–Wire protocol

ensure compatibility with iButton family

ꢀ

ꢀ EPROM partitioned into 256–bit pages for

randomly accessing packetized data records

ꢀ Each memory page can be permanently

write–protected to prevent tampering

ꢀ Device is an “add only” memory where

additional data can be programmed into

EPROM without disturbing existing data

ꢀ Reduces control, address, data, power and

programming signals to a single pin

ꢀ Button Shape is self–aligning with cup–

shaped probes

ꢀ Durable stainless steel case engraved with

registration number withstands harsh

environments

ꢀ Easily affixed with self–stick adhesive

backing, latched by its flange, or locked with

a ring pressed onto its rim

ꢀ 8–bit family code specifies device

communications requirements to reader

ꢀ Presence detector acknowledges when reader

first applies voltage

ꢀ Presence detector acknowledges when reader

first applies voltage

ꢀ Meets UL#913 (4th edit.); Intrinsically Safe

Apparatus, Approved under Entity Concept

for use in Class I, Division 1, Group A, B, C

and D Locations (application pending)

ꢀ Reads over a wide voltage range of 2.8V to

6.0V from –40°C to +85°C

iButton DESCRIPTION

UniqueWare iButtons are factory programmed versions of the DS1982 (1024 bit), the DS1985 (16K bit)

and the DS1986 (64K bit) Add–Only iButtons, respectively. They differ from the regular devices in their

custom ROM family codes (see Ordering Information) and the UniqueWare Identifier 5E7 in place of the

upper 12 bits of the standard serialization field. For technical details on the devices please refer to the

DS1982, DS1985 and DS1986 data sheets.

UniqueWare Add–Only iButtons are only available preprogrammed with customer–specific and write–

protected data. UniqueWare data fills at least one but no more than the first four pages of a device,

depending on the length of the customer–supplied data. This leaves up to three (DS1982U), 63

(DS1985U) or 255 (DS1986U) memory pages available for programming in the application.

For more details on UniqueWare and how to set up data files, please refer to the UniqueWare Project

Setup Manual, available as Application Note 99 from Dallas Semiconductor. The UniqueWare Project

Setup Software is available from the Dallas Semiconductor FTP Site at

ftp://ftp.dalsemi.com/pub/auto_id, file name “unwsetup.exe”.

1 of 2

010700

中文翻译

下载PDF

与DS1422相关器件

型号	品牌	获取价格	描述	数据表
DS14220-F50	DALLAS	获取价格	Memory Circuit, 256X8, CMOS, MEDB1, MICROCAN-2
DS1422L-F5	DALLAS	获取价格	Memory Circuit, 256X8, CMOS, MEDB1,
DS1425	DALLAS	获取价格	Multi iButton
DS1427	DALLAS	获取价格	Time iButton
DS1427	ADI	获取价格	Time iButton
DS14285	DALLAS	获取价格	Real Time Clock with NV RAM Control
DS14285	ROCHESTER	获取价格	1 TIMER(S), REAL TIME CLOCK, PDIP24, 0.600 INCH, DIP-24
DS14285_05	DALLAS	获取价格	Real-Time Clock with NV RAM
DS14285+	DALLAS	获取价格	Real-Time Clock with NV RAM
DS14285+	ROCHESTER	获取价格	1 TIMER(S), REAL TIME CLOCK, PDIP24, 0.600 INCH, ROHS COMPLIANT, DIP-24

与DS1422相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

36
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

28
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

56
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

53

产品中心

服务支持

精选活动

关于我们

帮助中心

DS1422

DS1422 数据手册

与DS1422相关器件

与DS1422相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

DS1422

DS1422 数据手册

与DS1422相关器件

与DS1422相关文章

您还可以找

您在本页遇到什么问题？