CAT24M01
1 Mb I2C CMOS Serial
EEPROM
Description
The CAT24M01 is a 1024 kb Serial CMOS EEPROM, internally
organized as 131,072 words of 8 bits each.
http://onsemi.com
It features a 256−byte page write buffer and supports the Standard
2
(100 kHz), Fast (400 kHz) and Fast−Plus (1 MHz) I C protocol.
Write operations can be inhibited by taking the WP pin High (this
protects the entire memory).
External address pins make it possible to address up to four
CAT24M01 devices on the same bus.
SOIC−8
W SUFFIX
CASE 751BD
UDFN−8*
HU5 SUFFIX
CASE 517BU
SOIC−8
X SUFFIX
CASE 751BE
Features
2
• Supports Standard, Fast and Fast−Plus I C Protocol
• 1.8 V to 5.5 V Supply Voltage Range
• 256−Byte Page Write Buffer
• Hardware Write Protection for Entire Memory
PDIP−8
L SUFFIX
CASE 646AA
TSSOP−8*
Y SUFFIX
CASE 948AL
2
• 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 and Extended Temperature Range
• 8−pin PDIP, SOIC, TSSOP and 8−pad UDFN Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
PIN CONFIGURATION
1
NC
V
CC
A
1
WP
SCL
SDA
A
2
V
SS
PDIP (L), SOIC (W, X),
TSSOP (Y)*, UDFN (HU5)*
V
CC
For the location of Pin 1, please consult the
corresponding package drawing.
SCL
* Contact factory for availability
CAT24M01
SDA
A , A
2
1
PIN FUNCTION
WP
Pin Name
A , A
Function
Device Address
1
2
SDA
SCL
WP
Serial Data
Serial Clock
Write Protect
Power Supply
Ground
V
SS
Figure 1. Functional Symbol
V
CC
V
SS
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
1
Publication Order Number:
October, 2011 − Rev. 2
CAT24M01/D