描述 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.

特性 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