Description

The Microchip Technology Inc. 24LC09 is an 8 Kbit Electrically Erasable PROM (EEPROM) designed to meet the Advanced Communication Riser Special Interest Group (ACR-SIG). The device is organized as four blocks of 256 x 8-bit memory that supports the 2- wire serial interface with a special address: 1011. Low voltage design permits operation down to 2.5 volts with typical standby and active currents of only 5 µA and 1 mA, respectively. The 24LC09 also has a page-write capability for up to 16 bytes of data. The 24LC09 is available in the standard 8-pin DIP, 8-lead surface mount SOIC packages.

Features

• Supports ACR riser card specification

- 2-wire ACR serial bus interface

- Address: 1011

• Single supply with operation down to 2.5V

• Low power CMOS technology

- 1 mA active current typical

- 500 nA standby current typical at 5V

• Organized as four blocks of 256 bytes

(4 x 256 x 8)

• Schmitt trigger, filtered inputs for noise

suppression

• Output slope control to eliminate ground bounce

• 400 kHz Capability (2.5 to 5.5 Volts)

• Self-timed write cycle (including auto-erase)

• Page-write buffer for up to 16 bytes

• 2 ms typical write cycle time for page-write

• Hardware write protect for entire memory

• Can be operated as a serial ROM

• Factory programming (QTP) available

• ESD protection > 4,000V

• 1,000,000 erase/write cycles guaranteed

• Data retention > 200 years

• 8-pin PDIP, 8-lead SOIC packages

• Available temperature ranges:

- Industrial (I): -40°C to +85°C