Datasheet > DS-11802D4-825L

DS-11802D4-825L

更新时间： 2024-11-04 23:48:39

品牌	Logo	应用领域
其他 - ETC		转换器
页数	文件大小	规格书
7页	227K
描述
Converter

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数据手册

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DS-11802D4-825L 数据手册

DS1200

Serial RAM Chip

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

C 1024 Bits of Read/Write Memory

C Low Data Retention Current for Battery

Backup Applications

C Four Million Bits/Second Data Rate

C Single-Byte or Multiple-Byte Data Transfer

Capability

C No Restrictions on the Number of Write

Cycles

16-Pin SO (300mil)

C Low-Power CMOS Circuitry

See Mech. Drawings Section

APPLICATIONS

C Software Authorization

C Computer Identification

C System Access Control

C Secure Personnel Areas

C Calibration

PIN DESCRIPTION

V_CC

- +5V

RST

- Reset

C Automatic System Setup

C Traveling Work Record

- Data Input/Output

- Clock

CLK

GND

V_BAT

- Ground

- Battery (+)

- No Connection

DESCRIPTION

The DS1200 serial RAM chip is a miniature read/write memory that can randomly access individual

8-bit strings (bytes) or sequentially access the entire 1024-bit contents (burst). Interface cost to a

microprocessor is minimized by on-chip circuitry, which permits data transfers with only three signals:

CLK, RST , and DQ.

Nonvolatility can be achieved by connecting a battery of 2V to 4V at the battery input V_BAT.A load of

0.5ꢀꢁꢂshould be used to size the external battery for the required data retention time. If nonvolatility is

not required the V_BATpin should be grounded.

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