CAT34C02HU3 datasheet, PDF - EEWORLD Datasheet

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CAT34C02HU3: Description2 kb I2C EEPROM for DDR2 DIMM Serial Presence Detect TSSOPâ8 Y SUFFIX; File Size169KB，14 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn

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CAT34C02HU3 Overview

2 kb I2C EEPROM for DDR2 DIMM Serial Presence Detect TSSOPâ8 Y SUFFIX

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CAT34C02

2 kb I

C EEPROM for DDR2

DIMM Serial Presence

Detect

Description

The CAT34C02 is a 2 kb Serial CMOS EEPROM, internally

organized as 16 pages of 16 bytes each, for a total of 256 bytes of 8 bits

each.

It features a 16−byte page write buffer and supports both the

Standard (100 kHz) as well as Fast (400 kHz) I

C protocol.

Write operations can be inhibited by taking the WP pin High (this

protects the entire memory) or by setting an internal Write Protect flag

via Software command (this protects the lower half of the memory).

In addition to Permanent Software Write Protection, the

CAT34C02 also features JEDEC compatible Reversible Software

Write Protection for DDR2 Serial Presence Detect (SPD)

applications operating over the 1.7 V to 3.6 V supply voltage range.

The CAT34C02 is fully backwards compatible with earlier

DDR1 SPD applications operating over the 1.7 V to 5.5 V supply

voltage range.

Features

http://onsemi.com

TSSOP−8

Y SUFFIX

CASE 948AL

TDFN−8

VP2 SUFFIX

CASE 511AK

UDFN−8

HU3 SUFFIX

CASE 517AX

UDFN−8 EP

HU4 SUFFIX

CASE 517AZ

•

Supports Standard and Fast I

C Protocol

1.7 V to 5.5 V Supply Voltage Range

16−Byte Page Write Buffer

Hardware Write Protection for Entire Memory

Software Write Protection for Lower 128 Bytes

Schmitt Triggers and Noise Suppression Filters on I

C Bus Inputs

(SCL and SDA)

Low power CMOS Technology

1,000,000 Program/Erase Cycles

100 Year Data Retention

Industrial Temperature Range

This Device is Pb−Free, Halogen Free/BFR Free and RoHS

Compliant*

PIN CONFIGURATION

SCL

SDA

TSSOP (Y), TDFN (VP2),

UDFN (HU3), UDFN (HU4)

For the location of Pin 1, please consult the

corresponding package drawing.

PIN FUNCTION

Pin Name

, A

Function

Device Address Input

Serial Data Input/Output

Serial Clock Input

Write Protect Input

Power Supply

Ground

SCL

CAT34C02

SDA

SCL

, A

Figure 1. Functional Symbol

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

Semiconductor Components Industries, LLC, 2011

March, 2011

−

Rev. 17

Publication Order Number:

CAT34C02/D

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