24AA32A_24LC32A| Datasheet

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24AA32A/24LC32A
32K I2CTM Serial EEPROM
Device Selection Table
Part Number 24AA32A 24LC32A Note 1: VCC Range 1.7-5.5 2.5-5.5 Max. Clock Frequency 400 kHz(1) 400 kHz Temp. Ranges I I, E

Description:
The Microchip Technology Inc. 24AA32A/24LC32A (24XX32A*) is a 32 Kbit Electrically Erasable PROM. The device is organized as a single block of 4K x 8-bit memory with a 2-wire serial interface. Low-voltage design permits operation down to 1.7V, with standby and active currents of only 1 A and 1 mA, respectively. It has been developed for advanced, lowpower applications such as personal communications or data acquisition. The 24XX32A also has a page write capability for up to 32 bytes of data. Functional address lines allow up to eight devices on the same bus, for up to 256 Kbits address space. The 24XX32A is available in the standard 8-pin PDIP, surface mount SOIC, TSSOP, 2x3 DFN and MSOP packages.

100 kHz for VCC <2.5V

Features:
Single supply with operation down to 1.7V for 24AA32A devices, 2.5V for 24LC32A devices Low-power CMOS technology: - Active current 1 mA, typical - Standby current 1 A, typical 2-wire serial interface, I2CTM compatible Cascadable up to eight devices Schmitt Trigger inputs for noise suppression Output slope control to eliminate ground bounce 100 kHz and 400 kHz clock compatibility Page write time 5 ms max. Self-timed erase/write cycle 32-byte page write buffer Hardware write-protect ESD protection > 4,000V More than 1 million erase/write cycles Data retention > 200 years Factory programming available Packages include 8-lead PDIP, SOIC, TSSOP, MSOP and DFN Pb-free and RoHS compliant Temperature ranges: - Industrial (I): -40 C to +85 C - Automotive (E): -40 C to +125 C

Package Types
PDIP, MSOP A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA

SOIC, TSSOP A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA

DFN A0 1 A1 2 A2 3 VSS 4 8 VCC 7 WP 6 SCL 5 SDA

Block Diagram
A0 A1 A2 WP HV Generator

I/O Control Logic

Memory Control Logic

XDEC

EEPROM Array Page Latches

I/O SDA Vcc VSS

SCL

YDEC

*24XX32A is used in this document as a generic part number for the 24AA32A/24LC32A devices.

Sense Amp. R/W Control

2007 Microchip Technology Inc.

DS21713H-page 1

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24AA32A_24LC32A DATASHEET