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The Microchip Technology Inc. 24AA256/24LC256/24FC256 (24XX256*) is a 32K x 8 (256 Kbit) SerialElectrically Erasable PROM, capable of operationacross a broad voltage range (1.8V to 5.5V). It hasbeen developed for advanced, low-power applicationssuch as personal communications or data acquisition.This device also has a page write capability of up to 64bytes of data. This device is capable of both randomand sequential reads up to the 256K boundary.Functional address lines allow up to eight devices onthe same bus, for up to 2 Mbit address space.
24AA256 Maximum Ratings
Parameter Name
Value
Density
256K bits (x8)
Max. Clock Freq.
400 kHz
Page Size (bytes)
64
Write Protect
Whole Array
Endurance
1,000,000
Op. Volt Range (V)
1.7 to 5.5
Temp Range (°C)
-40°C to +85°C
24AA256 Features
* Low power CMOS technology - Maximum write current 3 mA at 5.5V - Maximum read current 400 m A at 5.5V - Standby current 100 nA typical at 5.5V * 2-wire serial interface bus, I2C compatible * Cascadable for up to eight devices * Self-timed ERASE/WRITE cycle * 64-byte page-write mode available * 5 ms max write-cycle time * Hardware write protect for entire array * Schmitt trigger inputs for noise suppression * 100,000 erase/write cycles guaranteed * Electrostatic discharge protection > 4000V * Data retention > 200 years * 8-pin PDIP and SOIC (208 mil) packages * Temperature ranges: - Industrial (I): -40 C to +85 C - Automotive (E): -40 C to +125 C