25AA320

25AA320/25LC320/25C320 32K SPI™ Bus Serial EEPROM Device Selection Table Part Number 25AA320 25LC320 25C320 VCC Range 1.8-5.5V 2.5-5.5V 4.5-5.5V Max. Clock Frequency 1 MHz 2 MHz 3 MHz Temp. Ranges I I,E I,E Features: Low-power CMOS technology: - Write current: 3 mA maximum - Read current: 500 µA 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°C to +85°C - Automotive (E): -40°C to +125°C Description: The Microchip 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 ...