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25AA080A-I/SN   8K SPI Bus Serial EEPROM

Features
• Max. clock 10 MHz
• Low-power CMOS technology
• 1024 x 8-bit organization
• 16 byte page (‘A’ version devices)
• 32 byte page (‘B’ version devices)
• Write cycle time: 5 ms max.
• Self-timed ERASE and WRITE cycles
• 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
- *D protection: > 4000V
• Pb-free and RoHS compliant
• Temperature ranges supported;
Pin Function Table
Description
The Microchip Technology Inc. 25AA080A/B, 25LC080A/B (25XX080A/B*) are 8 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, transi-tions on its inputs will be ignored, with the exception of
chip select, allowing the host to service higher priority interrupts.
The 25XX080A/B is available in standard packages including 8-lead PDIP and SOIC, and advanced packaging including 8-lead MSOP, and 8-lead TSSOP. All packages are Pb-free and RoHS compliant。