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DS2502T

更新时间： 2024-11-18 22:40:35

品牌	Logo	应用领域
达拉斯 - DALLAS		存储
页数	文件大小	规格书
3页	50K
描述
1 kbit Add-Only Memory

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中文翻译

获取价格

数据手册

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DS2502T 数据手册

DS2502/5/6-UNW

UniqueWare^TMAdd-Only Memory

www.dalsemi.com

SPECIAL FEATURES

§ 1024 bits, 16 kbits or 64 kbits Electrically

PIN ASSIGNMENT

TO-92/PR-35

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.

§ Built-in multidrop controller ensures

compatibility with other MicroLAN products

§ 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

8-Pin SOIC

See Mech.

Drawings Section

TSOC PACKAGE

1 2 3

TOP VIEW

3.7 X 4.0 X 1.5 mm

See Mech.

Drawings Section

BOTTOM VIEW

See Mech.

Drawings Section

§ Directly connects to a single port pin of a

microprocessor and communicates at up to

16.3k bits per second

§ Presence detector acknowledges when reader

first applies voltage

§ Low cost TO-92/PR-35 or 8-pin SOIC and

TSOC surface mount packages

§ Reads over a wide voltage range of 2.8V to

6.0V from -40°C to +85°C

PIN ASSIGNMENT

TO-92/PR-35 TSOC

SOIC

Pin 1

Pin 2

Pin 3

Pin 4

Ground

Data

Ground NC

Data

Ground

-----

Pins 5 to 8 -----

SILICON LABEL DESCRIPTION

UniqueWare Add-Only Memories are factory programmed versions of the DS2502 (1024 bit), the

DS2505 (16-kbit) and the DS2506 (64k bit) Add-Only Memories, 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 DS2502, DS2505 and DS2506 data sheets.

UniqueWare Add-Only Memories 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,

1 of 3

102099

12 3

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DS2502TR+T&R	MAXIM	获取价格	OTP ROM, 128X8, CMOS, PBCY3, TO-92, 3 PIN
DS2502U-1172+	MAXIM	获取价格	OTP ROM, 128X8, CMOS, PBCY3, ROHS COMPLIANT, TO-92, 3 PIN
DS2502-UN	DALLAS	获取价格	UniqueWare Add-Only Memory
DS2502-UNW	DALLAS	获取价格	UniqueWare Add-Only Memory
DS2502-UNW	ADI	获取价格	UniqueWare?只添加存储器
DS2502-UNW-PPPP	DALLAS	获取价格	UniqueWare Add-Only Memory
DS2502V	DALLAS	获取价格	1 kbit Add-Only Memory
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DS2502X1#U	MAXIM	获取价格	OTP ROM, 128X8, CMOS, PBGA2, CSP-2
DS2502X1+U	MAXIM	获取价格	OTP ROM, 128X8,