24LC09| Datasheet

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Obsolete Device

24LC09
8K 2.5V ACR Serial EEPROM
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

Package Types
PDIP/SOIC A0 A1 A2 VSS 1 2 3 4 24LC09 8 7 6 5 VCC WP SCL SDA

Block Diagram
WP HV GENERATOR

I/O CONTROL LOGIC

MEMORY CONTROL LOGIC

XDEC

EEPROM ARRAY (2 x 256 x 8) or (4 x 256 x 8) PAGE LATCHES

SDA

SCL YDEC VCC VSS

SENSE AMP R/W CONTROL

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 2wire 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 uA 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.

I2C is a registered trademark of Philips Corporation.

2004 Microchip Technology Inc.

DS21675B-page 1