25LC080A-E/ST 电可擦除可编程只读存储器

25LC080A-E/ST

电可擦除可编程只读存储器 8k 1kx8 16B Pg- 2.5V

8K SPI™ Bus Serial EEPROM

Description 25LC080A-E/ST

The Microchip Technology Inc.25LC080A-E/ST 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, transitions 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. Pb-free (Pure Matte Sn) finish is also available.

Features 25LC080A-E/ST

• 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