24AA164| Datasheet

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Obsolete Device

24AA164
16K 1.8V Cascadable I2CTM Serial EEPROM
FEATURES
Single supply with operation down to 1.8V Low power CMOS technology - 1 mA active current typical - 10 uA standby current typical at 5.5V - 5 uA standby current typical at 3.0V Organized as 8 blocks of 256 bytes (8 x 256 x 8) 2-wire serial interface bus, I2C compatible Functional address inputs for cascading up to 8 devices Schmitt trigger, filtered inputs for noise suppression Output slope control to eliminate ground bounce 100 kHz (1.8V) and 400 kHz (5V) compatibility 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 DIP, 8-lead SOIC packages Available for commercial temperature range - Commercial (C): 0 C to +70 C

PACKAGE TYPES
PDIP A0 A1 A2 VSS 1 24AA164 2 3 4 8 7 6 5 VCC WP SCL SDA

8-lead SOIC A0 A1 A2 VSS 1
24AA164

8 7 6 5

VCC WP SCL SDA

2 3 4

DESCRIPTION
The Microchip Technology Inc. 24AA164 is a cascadable 16K bit Electrically Erasable PROM. The device is organized as eight blocks of 256 x 8-bit memory with a 2-wire serial interface. Low voltage design permits operation down to 1.8 volts (end-of-life voltage for most popular battery technologies) with standby and active currents of only 5 uA and 1 mA respectively. The 24AA164 also has a page-write capability for up to 16 bytes of data. The 24AA164 is available in the standard 8-pin DIP and 8-lead surface mount SOIC packages. The three select pins, A0, A1, and A2, function as chip select inputs and allow up to eight devices to share a common bus, for up to 128K bits total system EEPROM.

BLOCK DIAGRAM
A0 A1 A2 WP HV GENERATOR

I/O CONTROL LOGIC

MEMORY CONTROL LOGIC

XDEC

EEPROM ARRAY (8 x 256 x 8) PAGE LATCHES

SDA

SCL YDEC

V CC V SS

SENSE AMP R/W CONTROL

I2C is a trademark of Philips Corporation.

2004 Microchip Technology Inc.

DS21100G-page 1

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24AA164 DATASHEET