CAT25020 Datasheet, PDF (1/18 Pages) Catalyst Semiconductor – 1K/2K/4K SPI Serial CMOS EEPROM

CAT25010, CAT25020, CAT25040
1K/2K/4K SPI Serial CMOS EEPROM
FEATURES
I 10 MHz SPI compatible
I 1.8 to 5.5 volt operation
I SPI modes (00 & 11)
I 16-byte page write buffer
I Self-timed write cycle
I Hardware and software protection
I Block write protection
– Protect 1/4, 1/2 or all of EEPROM array
I Low power CMOS technology
I 1,000,000 program/erase cycles
I 100 year data retention
I Industrial temperature range
I RoHS-compliant 8-lead PDIP, SOIC, TSSOP
and 8-pad TDFN packages.
DESCRIPTION
The CAT25010/20/40 is a 1K/2K/4K Bit SPI Serial
CMOS EEPROM internally organized as 128x8/256x8/
512x8 bits. Catalyst’s advanced CMOS Technology
substantially reduces device power requirements. The
CAT25010/20/40 features a 16-byte page write buffer.
The device operates via the SPI bus serial interface and
is enabled though a Chip Select (CS). The HOLD pin
may be used to suspend any serial communication
without resetting the serial sequence. The CAT25010/
20/40 is designed with software and hardware write
protection features including Block Write protection.
For Ordering Information details, see page 17.
PIN CONFIGURATION
PDIP (L)
SOIC (V)
TSSOP (Y)
TDFN (VP2)
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
PIN FUNCTIONS
Pin Name
Function
SO
Serial Data Output
SCK
Serial Clock
WP
Write Protect
VCC
+1.8V to +5.5V Power Supply
VSS
Ground
CS
Chip Select
SI
Serial Data Input
HOLD
Suspends Serial Input
FUNCTIONAL SYMBOL
VCC
SI
CS
CAT25010
WP
CAT25020
SO
CAT25040
HOLD
SCK
VSS
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1006, Rev. S