25AA320-I/SN Datasheet PDF - Microchip

●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 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