CAT24C64
64 Kb I2C CMOS Serial
EEPROM
Description
The CAT24C64 is a 64 Kb CMOS Serial EEPROM device,
internally organized as 8192 words of 8 bits each.
It features a 32−byte page write buffer and supports the Standard
(100 kHz), Fast (400 kHz) and Fast−Plus (1 MHz) I2C protocol.
External address pins make it possible to address up to eight
CAT24C64 devices on the same bus.
Features
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Supports Standard, Fast and Fast−Plus I2C Protocol
1.7 V to 5.5 V Supply Voltage Range
32−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
PDIP, SOIC, TSSOP, US 8−lead, UDFN 8−pad and Ultra−thin
WLCSP 4−bump Packages
This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
VCC
SOIC−8
W SUFFIX
CASE 751BD
UDFN−8
HU4 SUFFIX
CASE 517AZ
SOIC−8*
X SUFFIX
CASE 751BE
TSSOP−8
Y SUFFIX
CASE 948AL
WLCSP−4
C4C SUFFIX
CASE 567JY
WLCSP−4
C4U SUFFIX
CASE 567PB
US8**
US SUFFIX
CASE 493
PDIP−8
L SUFFIX
CASE 646AA
PIN CONFIGURATIONS (Top Views)
1
A0
A1
A2
VSS
VCC
WP
SCL
SDA
PDIP (L), SOIC (W, X),
US (US), TSSOP (Y),
UDFN (HU4)
MARKING
DIAGRAMS
(WLCSP−4)
SCL
1
VCC
A1
A2
VSS
SCL
B1
B2
SDA
WLCSP
(C4C)
(C4U)
X
YM
X
YW
X
CAT24C64
A2, A1, A0
www.onsemi.com
= Specific Device Code
= (see ordering information)
Y
= Production Year (Last Digit)
M = Production Month (1−9, O, N, D)
W = Production Week Code
For the location of Pin 1, please consult the
corresponding package drawing.
SDA
WP
PIN FUNCTION
VSS
Pin Name
Figure 1. Functional Symbol
A0, A1, A2
SDA
SCL
WP
VCC
VSS
Function
Device Address
Serial Data
Serial Clock
Write Protect
Power Supply
Ground
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
* Not recommended for new designs
** Preliminary; please contact factory for availability
© Semiconductor Components Industries, LLC, 2015
November, 2016 − Rev. 25
1
Publication Order Number:
CAT24C64/D
