ACE24AC256E

Two-wire Serial EEPROM

VER 1.1

1

Description

The ACE24AC256E series are 262,144 bits of serial Electrical Erasable and Programmable Read Only

Memory, commonly known as EEPROM. They are organized as 32,768 words of 8 bits (one byte) each.

The devices are fabricated with proprietary advanced CMOS process for low power and low voltage

applications. These devices are available in standard 8-lead DIP, 8-lead SOP, 8-lead MSOP,8-lead

TSSOP and 8-lead USON packages. A standard 2-wire serial interface is used to address all read and

Features

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Low voltage and low power operations:

ACE24AC256E:

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Maximum Standby current < 1µA

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64 bytes page write mode.

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Partial page write operation allowed.

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Internally organized: 32,768 × 8 (256K).

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Standard 2-wire bi-directional serial interface.

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Schmitt trigger, filtered inputs for noise protection.

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Self-timed Write Cycle (5ms maximum).

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1 MHz (2.5V-5V), 400 kHz (1.8V) Compatibility.

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Automatic erase before write operation.

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Write protect pin for hardware data protection.

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High reliability: typically, 1,000,000 cycles endurance.

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100 years data retention.

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Industrial temperature range (-40℃to 85℃).

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Standard 8-lead DIP/SOP/MSOP/TSSOP/ USON Pb-free packages.

Absolute Maximum Ratings

Industrial operating temperature:

-40℃ to 85℃

Storage temperature:

-50℃to 125℃

Input voltage on any pin relative to ground:

Maximum voltage:

8V

ESD Protection on all pins:

>4000V

Notice: Stresses exceed those

listed under “Absolute Maximum Rating” may cause permanent damage to the

device. Functional operation of the device at conditions beyond those listed in the specification is not guaranteed.

Prolonged exposure to extreme conditions may affect device reliability or functionality.