CAT24C128 Datasheet, PDF (1/14 Pages) Catalyst Semiconductor – 128-Kb I2C CMOS Serial EEPROM

CAT24C128
128 kb I²C CMOS Serial
EEPROM
Description
The CAT24C128 is a 128 kb Serial CMOS EEPROM, internally
organized as 16,384 words of 8 bits each.
It features a 64−byte 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).
Features
• Supports Standard and Fast I²C Protocol
• 1.8 V to 5.5 V Supply Voltage Range
• 64−Byte Page Write Buffer
• Hardware Write Protection for Entire Memory
• 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 and Extended Temperature Range
• 8−lead PDIP, SOIC, TSSOP, MSOP and UDFN Packages
• This Device is Pb−Free, Halogen Free/BFR Free and RoHS
Compliant*
V_CC
SCL
A₂, A₁, A₀
WP
CAT24C128
SDA
V_SS
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.
http://onsemi.com
PDIP−8
L SUFFIX
CASE 646AA
TSSOP−8
Y SUFFIX
CASE 948AL
SOIC−8
W SUFFIX
CASE 751BD
MSOP−8
Z SUFFIX
CASE 846AD
UDFN−8
HU3 SUFFIX
CASE 517AX
PIN CONFIGURATION
A₀
1
V_CC
A₁
WP
A₂
SCL
V_SS
SDA
PDIP (L), SOIC (W), TSSOP (Y),
MSOP (Z), UDFN (HU3)
For the location of Pin 1, please consult the
corresponding package drawing.
Pin Name
A₀, A₁, A₂
SDA
SCL
WP
V_CC
V_SS
PIN FUNCTION
Function
Device Address Inputs
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
1
September, 2009 − Rev. 11
Publication Order Number:
CAT24C128/D