25AA320/25LC320/25C320
32K SPI™ Bus Serial EEPROM
Device Selection Table
Part Number
25AA320 25LC320 25C320
VCC Range...
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 ...