DESCRIPTION

The Microchip Technology Inc. 25LC320 is a 32K-bit serial Electrically Erasable PROM (EEPROM). 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.

FEATURES

• SPI modes 0,0 and 1,1

• 3.0 MHz Clock Rate

• Single supply with Programming Operation down to 2.5V

• Low Power CMOS Technology

- Max Write Current: 5.0 mA

- Read Current: 1 mA at 5.5V, 3 Mhz

- Standby Current: 1 µA typical

• 4096 x 8 Organization

• 32-Byte Page

• Sequential Read

• 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

• High Reliability

- Endurance: 1M cycles (guaranteed)

- Data Retention: >200 years

- ESD protection: >4000V

• 8-pin PDIP/SOIC, 14-pin TSSOP

• Temperature ranges supported

- Commercial (C): 0°C to +70°C

- Industrial (I): -40°C to +85°C