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Product Descriptions

The Microchip Technology Inc. 25AA256/25LC256 (25XX256(1)) are 256 Kbit Serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input.

Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts.

The 25XX256 is available in standard packages including 8-lead PDIP and SOIC, and advanced packaging including 8-lead DFN and 8-lead TSSOP.

Product Features

? Max. Clock 10 MHz

? Low-Power CMOS Technology:

- Max. Write Current: 5 mA at 5.5V, 10 MHz

- Read Current: 6 mA at 5.5V, 10 MHz

- Standby Current: 1 ?A at 5.5V

? 32,768 x 8-Bit Organization

? 64-Byte Page

? Self-Timed Erase and Write Cycles (5 ms max.)

? Block Write Protection:

- Protect none, 1/4, 1/2 or all of array

? Built-In Write Protection:

- Power-on/off data protection circuitry

- Write enable latch

- Write-protect pin

? Sequential Read

? High Reliability:

- Endurance: 1,000,000 erase/write cycles

- Data retention: > 200 years

- ESD protection: > 4000V

? Temperature Ranges Supported:

- Industrial (I): -40?C to +85?C

- Extended (E): -40°C to +125°C

? RoHS Compliant

? Automotive AEC-Q100 Qualified

Specifications

Actual product photos

Product Data Book：

For more product information, please download the PDF

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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