HT93LC66 データシートの表示（PDF） - Holtek Semiconductor

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HT93LC66

4K 3-Wire CMOS Serial EEPROM

Holtek Semiconductor 

HT93LC66

4K 3-Wire CMOS Serial EEPROM

Features

• Operating voltage VCC

– Read: 2.0V~5.5V

– Write: 2.4V~5.5V

• Low power consumption

– Operating: 5mA max.

– Standby: 10µA max.

• User selectable internal organization

– 4K(HT93LC66): 512×8 or 256×16

• 3-wire Serial Interface

• Write cycle time: 5ms 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

• 106 rewrite cycles per word

• 8-pin DIP/SOP package

• Commercial temperature range

(0°C to +70°C)

General Description

The HT93LC66 is a 4K-bit low voltage nonvola-

tile, serial electrically erasable programmable

read only memory device using the CMOS float-

ing gate process. Its 4096 bits of memory are

organized into 256 words of 16 bits each when the

ORG pin is connected to VCC or organized into

512 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.

Block Diagram

1

6th May ’99

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