24LC09_04 Datasheet, PDF (1/18 Pages) Microchip Technology – 8K 2.5V ACR SERIAL EEPROM

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
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.
Package Types
PDIP/SOIC
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
Block Diagram
WP
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
XDEC
SDA SCL
VCC
VSS
EEPROM ARRAY
(2 x 256 x 8) or
(4 x 256 x 8)
PAGE LATCHES
YDEC
SENSE AMP
R/W CONTROL
I²C is a registered trademark of Philips Corporation.
 2004 Microchip Technology Inc.
DS21675B-page 1