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.

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
    - ESD protection: > 4000V
• Temperature ranges supported;
    - Industrial (I): -40°C to +85°C
    - Automotive (E): -40°C to +125°C