
CAT25010, CAT25020,
CAT25040
1-Kb, 2-Kb and 4-Kb SPI
Serial CMOS EEPROM
Description
The CAT25010/20/40 are 1 ? Kb/2 ? Kb/4 ? Kb Serial CMOS
EEPROM devices internally organized as 128x8/256x8/512x8 bits.
They feature a 16 ? byte page write buffer and support the Serial
Peripheral Interface (SPI) protocol. The device is enabled through a
Chip Select (CS) input. In addition, the required bus signals are a clock
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input (SCK), data input (SI) and data output (SO) lines. The HOLD
input may be used to pause any serial communication with the
CAT25010/20/40 device. These devices feature software and
SOIC ? 8
V SUFFIX
CASE 751BD
MSOP ? 8
Z SUFFIX
CASE 846AD
TDFN ? 8*
VP2 SUFFIX
CASE 511AK
hardware write protection, including partial as well as full array
protection.
Features
V CC
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20 MHz (5 V) SPI Compatible
1.8 V to 5.5 V Supply Voltage Range
SPI Modes (0,0) & (1,1)
16 ? byte Page Write Buffer
Self ? timed Write Cycle
Hardware and Software Protection
Block Write Protection
? Protect 1/4, 1/2 or Entire EEPROM Array
Low Power CMOS Technology
1,000,000 Program/Erase Cycles
100 Year Data Retention
Industrial and Extended Temperature Range
PDIP, SOIC, TSSOP 8 ? Lead and TDFN, UDFN 8 ? Pad Packages
These Devices are Pb ? Free, Halogen Free/BFR Free, and RoHS
Compliant
PDIP ? 8 TSSOP ? 8 UDFN ? 8
L SUFFIX Y SUFFIX HU4 SUFFIX
CASE 646AA CASE 948AL CASE 517AZ
PIN CONFIGURATION
CS 1
SO HOLD
WP SCK
V SS SI
PDIP (L), SOIC (V), MSOP (Z)
TSSOP (Y), TDFN* (VP2), UDFN (HU4)
For the location of Pin 1, please consult the
corresponding package drawing.
* Not recommended for new designs
V CC
Pin Name
PIN FUNCTION
Function
SI
CS
Chip Select
CS
WP
HOLD
SCK
CAT25010
CAT25020
CAT25040
SO
SO
WP
V SS
SI
Serial Data Output
Write Protect
Ground
Serial Data Input
SCK
Serial Clock
V SS
Figure 1. Functional Symbol
HOLD
V CC
Hold Transmission Input
Power Supply
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
? Semiconductor Components Industries, LLC, 2013
November, 2013 ? Rev. 24
1
Publication Order Number:
CAT25010/D