25AA320-I/P

32K SPI总线串行EEPROM 32K SPI Bus Serial EEPROM

Description:

The Technology Inc. 25AA320/25LC320/25C320 25XX320

.

are 32 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.

Features:

• Low-power CMOS technology:

\- Write current: 3 mA maximum

\- Read current: 500µA typical

\- Standby current: 500 nA typical

• 4096 x 8 bit organization

• 32 byte page

• Write cycle time: 5 ms maximum

• 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: 1M E/W cycles

\- Data retention: > 200 years

\- ESD protection: > 4000V

• 8-pin PDIP, SOIC and TSSOP packages

• 14-lead TSSOP package

• Temperature ranges supported:

\- Industrial I: -40°Cto +85°C

\- Automotive E: -40°C to +125°C