Rainbow-electronics HT93LC46 Manuel d'utilisateur télécharger pdf

HT93LC46

1K 3-Wire CMOS Serial EEPROM

Block Diagram

Features

•

Operating voltage V

–

Read: 2.0V~5.5V

–

Write: 2.4V~5.5V

•

Low power consumption

–

Operating: 5mA max.

–

Standby: 10µA max.

•

User selectable internal organization

–

1K(HT93LC46): 128×8 or 64×16

•

3-wire Serial Interface

•

Write cycle time: 2ms max.

•

Automatic erase-before-write operation

•

Word/chip erase and write operation

•

Write operation with built-in timer

•

Software controlled write protection

•

10-year data retention after 100K rewrite

cycles

•

rewrite cycles per word

•

8-pin DIP/SOP package

•

Commercial temperature range

°C to +70°C)

General Description

The HT93LC46 is a 1K-bit low voltage nonvola-

tile, serial electrically erasable programmable

read only memory device using the CMOS float-

ing gate process. Its 1024 bits of memory are

organized into 64 words of 16 bits each when the

ORG pin is connected to VCC or organized into

128 words of 8 bits each when it is tied to VSS. The

device is optimized for use in many industrial

and commercial applications where low power

and low voltage operation are essential. By

popular microcontroller, the versatile serial in-

terface including chip select (CS), serial clock

(SK), data input (DI) and data output (DO) can

be easily controlled.

1 6th May ’99

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HT93LC46 1

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Page 1 - HT93LC46

HT93LC461K 3-Wire CMOS Serial EEPROMBlock DiagramFeatures•Operating voltage VCC–Read: 2.0V~5.5V–Write: 2.4V~5.5V•Low power consumption–Operating: 5mA

Page 2

HT93LC4610 6th May '99Copyright Ó 1999 by HOLTEK SEMICONDUCTOR INC.The information appearing in this Data Sheet is believed to be accurate at the

Page 3

Pin AssignmentPin DescriptionPin Name I/O DescriptionCS I Chip select inputSK I Serial clock inputDI I Serial data inputDO O Serial data outputVSS I N

Page 4

Absolute Maximum RatingsOperation Temperature (Commercial)...0°C to 7

Page 5

A.C. CharacteristicsSymbol ParameterVCC=5V±10% VCC=3V±10% VCC=2V*UnitMin. Max. Min. Max. Min. Max.fSKClock Frequency 0 2000 0 500 0 250 kHztSKHSK High

Page 6

Timing DiagramsFunctional DescriptionThe HT93LC46 is accessed via a three-wire serialcommunication interface. The device is arrangedinto 64 words by 1

Page 7

ERASEThe ERASE instruction erases data at thespecified addresses in the programming enablemode. After the ERASE op-code and the speci-fied address hav

Page 8

Timing DiagramsREADEWEN/EWDSWRITEHT93LC467 6th May ’99

Page 9

ERASEERALWRALHT93LC468 6th May ’99

Page 10

Instruction Set SummaryHT93LC46Instruction CommentsStartbitOpCodeAddressORG=0 ORG=1X8 X16DataORG=0 ORG=1X8 X16READ Read data 1

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Rainbow-electronics HT93LC46 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Stockage Rainbow-electronics HT93LC46. Rainbow Electronics HT93LC46 User Manual Manuel d'utilisatio

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