ACE24C128/256

Two-wire Serial EEPROM

VER 1.2

1

 

Description

The ACE24C128/256 provides 131,072/262,144 bits of serial electrically erasable and programmable read-only

memory (EEPROM) organized as 16,384/32,768 words of 8 bits each. The device’s cascadable feature allows up

to 8 devices to share a common two-wire bus. The device is optimized for use in many industrial and

commercial applications where low-power and low-voltage operations are essential.

Features

Low Operation Voltage: Vcc = 1.7V to 5.5V

Internally Organized: 16,384 x 8(128K), 32,768 x 8(256K)

Two-wire Serial Interface

Schmitt Trigger, Filtered Inputs for Noise Suppression

Bi-directional Data Transfer Protocol

1MHz (2.5V~5.5V) and 400 kHz (1.7V) Compatibility

Write Protect Pin for Hardware Data Protection

64-byte Page Write Modes (Partial Page Writes are Allowed)

Self-timed Write Cycle (5 ms max)

High-reliability - Endurance: 1,000,000 Write Cycles

- Data Retention: 100 Years

PDIP-8,SOP-8,TSSOP-8 ROHS compliant Packages

Wafer Sales: available in inked wafer Form

Absolute Maximum Ratings

Operating Temperature

-55℃ to +125℃

Storage Temperature

-65℃ to +150℃

Voltage on Any Pin with Respect to Ground

-1.0V to +7.0V

Maximum Operating Voltage

6.25V

DC Output Current

5.0 mA

*Notice: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a

stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational

sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect

device reliability.