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ON Semiconductor - 2 kb I2C EEPROM

Numéro de référence CAT34C02
Description 2 kb I2C EEPROM
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CAT34C02 fiche technique
CAT34C02
2 kb I2C 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 16byte page write buffer and supports both the
Standard (100 kHz) as well as Fast (400 kHz) I2C 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
Supports Standard and Fast I2C Protocol
1.7 V to 5.5 V Supply Voltage Range
16Byte Page Write Buffer
Hardware Write Protection for Entire Memory
Software Write Protection for Lower 128 Bytes
Schmitt Triggers and Noise Suppression Filters on I2C 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 PbFree, Halogen Free/BFR Free and RoHS
Compliant*
VCC
SCL
A2, A1, A0
WP
CAT34C02
SDA
VSS
Figure 1. Functional Symbol
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
www.DataSheet4U.com
http://onsemi.com
TSSOP8
Y SUFFIX
CASE 948AL
TDFN8
VP2 SUFFIX
CASE 511AK
UDFN8
HU3 SUFFIX
CASE 517AX
UDFN8 EP
HU4 SUFFIX
CASE 517AZ
PIN CONFIGURATION
A0 1
VCC
A1 WP
A2 SCL
VSS SDA
TSSOP (Y), TDFN (VP2),
UDFN (HU3), UDFN (HU4)
For the location of Pin 1, please consult the
corresponding package drawing.
Pin Name
A0, A1, A2
SDA
SCL
WP
VCC
VSS
PIN FUNCTION
Function
Device Address Input
Serial Data Input/Output
Serial Clock Input
Write Protect Input
Power Supply
Ground
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
December, 2009 Rev. 14
1
Publication Order Number:
CAT34C02/D

PagesPages 15
Télécharger [ CAT34C02 ]


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