24AA52T-I/MC【PDF 1/36 页】IC EEPROM 2KBIT 400KHZ 8DFN

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24AA52/24LCS52

2K 2.2V I 2 C ? Serial EEPROM with Software Write-Protect

Device Selection Table

Description:

Part

Number

24AA52

V CC

Range

1.8-5.5

Max Clock

Frequency

400 kHz (1)

Temp

Ranges

The Microchip Technology Inc. 24AA52/24LCS52

(24XXX52*) is a 2 Kbit Electrically Erasable PROM

capable of operation across a broad voltage range

(1.8V to 5.5V). This device has a software write-protect

24LCS52

Note 1:

2.2-5.5 400 kHz

100 kHz for V CC <2.2V

feature for the lower half of the array, as well as an

external pin that can be used to write-protect the entire

array. The software write-protect feature is enabled by

Features:

? Single Supply with Operation Down to 1.8V

? Low-Power CMOS Technology:

- 1 mA active current, typical

- 1 ? A standby current, typical (I-temp)

? Organized as 1 Block of 256 Bytes (256 x 8)

? Software Write Protection for Lower 128 Bytes

? Hardware Write Protection for Entire Array

? 2-Wire Serial Interface Bus, I 2 C? Compatible

? Schmitt Trigger Inputs for Noise Suppression

? Output Slope Control to Eliminate Ground Bounce

? 100 kHz (24AA52) and 400 kHz (24LCS52)

Compatibility

? Self-Timed Write Cycle (including auto-erase)

sending the device a special command. Once this

feature has been enabled, it cannot be reversed. In

addition to the software protect feature, there is a WP

pin that can be used to write-protect the entire array,

regardless of whether the software write-protect

designer to protect none, half, or all of the array,

depending on the application. The device is organized

as one block of 256 x 8-bit memory with a 2-wire serial

interface. Low-voltage design permits operation down

to 1.8V, with standby and active currents of only 1 ? A

and 1 mA, respectively. The 24XXX52 also has a page

write capability for up to 16 bytes of data. The 24XXX52

is available in the standard 8-pin PDIP, surface mount

SOIC, TSSOP, MSOP, DFN and TDFN packages.

Block Diagram

? Page Write Buffer for up to 16 Bytes

? ESD Protection > 4,000V

A 0 A 1 A 2

HV Generator

? 1,000,000 Erase/Write Cycles

? Data Retention > 200 Years

? 8-Lead PDIP, SOIC, TSSOP, MSOP, DFN and

TDFN Packages

? Pb-Free Finishes Available

? Available for Extended Temperature Ranges:

- Industrial (I): -40°C to +85°C

Package Types

I/O

Control

Logic

SDA SCL

V CC

V SS

Memory

Control

Logic

XDEC

Software write

protected area

(00h-7Fh)

Standard

Array

Write-Protect

Circuitry

YDEC

PDIP/SOIC/TSSOP/MSOP/DFN/TDFN

Sense Amp.

R/W Control

V SS

V CC

SCL

SDA

A0 1

A1 2

A2 3

V SS 4

8 V CC

7 WP

6 SCL

5 SDA

*24XXX52 is used in this document as a generic part number

for the 24AA52/24LCS52 devices.

? 1996-2011 Microchip Technology Inc.

DS21166K-page 1

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