Datasheet > V4082V2ST3B

V4082V2ST3B

更新时间： 2024-11-14 03:21:19

品牌	Logo	应用领域
EMMICRO		内存集成电路有原始数据的样本ROM
页数	文件大小	规格书
7页	174K
描述
Identification ROM

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中文翻译

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技术参数
数据手册

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V4082V2ST3B 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
包装说明：	, SOT-223	Reach Compliance Code：	unknown
风险等级：	5.7	内存集成电路类型：	MASK ROM
内存宽度：	1	端子数量：	3
字数：	64 words	字数代码：	64
最高工作温度：	85 °C	最低工作温度：	-40 °C
组织：	64X1	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SOT-223	电源：	5 V
认证状态：	Not Qualified	子类别：	MASK ROMs
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
Base Number Matches：	1

V4082V2ST3B 数据手册

EM MICROELECTRONIC - MARIN SA

V4082

Identification ROM

Description

Features

The V4082 is a 64-bit read only memory (ROM) which

contains a unique laser engraved serial number. The

data in the ROM is partitioned into three sections: An 8-

bit identifier code, a 48-bit serial number and an 8-bit

cyclical redundancy check (CRC). The serial number is

incremented in fabrication such that no two parts have the

same code. Communication for reading and writing is

done serially via a single data lead (and ground return)

using a single wire protocol. Power for reading is derived

from the data line itself with no need for an extra power

source. The circuit is available in SOT 223 or TO 92

package.

Unique 48-bit silicon serial number gives 10¹⁴

combinations

Factory lasered and tested, no two parts alike

8-bit cyclic redundancy check ensures error-free reading

Presence detect indicates to the system when first

contact is made

Zero standby power required

Custom serial numbers available

Pin compatible with DS 2400, DS 2401 in TO-92 and

SOT-223

Applications

Socket identification

PCB identification

Equipment registration

Typical Operating Configuration

Pin Assignment

TO - 9 2

SOT-223

Vcc

View

Fla t Fro n t

R_PUP

V4082

on chip supply

2 3

V4082

DATA

VSS

Control

Logic

+ ROM

100 ohm

MOSFET

Cext

SYSTEM

V4082

Fig. 1

Name

Function

TO92

SOT-223

VSS

DATA

Ground return

Serial data pin

VSS

Ground return

* Internally connected to pin 2

Fig. 2

www.emmicroelectronic.com

12 3 4 5 6 7

中文翻译

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