CAT25080, CAT25160
8-Kb and 16-Kb SPI Serial CMOS EEPROM
FEATURES
10 MHz SPI compatible
1.8V to 5.5V supply voltage range
SPI modes (0,0) & (1,1)
32-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 temperature range
RoHS-compliant 8 lead PDIP, SOIC, TSSOP and
8-pad TDFN, UDFN packages
DESCRIPTION
The CAT25080/25160 are 8-Kb/16-Kb Serial CMOS
EEPROM
devices
internally
organized
as
1024x8/2048x8 bits. They feature a 32-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 input (SCK), data input (SI) and data
¯¯¯¯¯
output (SO) lines. The HOLD input may be used to
pause any serial communication with the
CAT25080/25160 device. These devices feature
software and hardware write protection, including
partial as well as full array protection.
PIN CONFIGURATION
PDIP (L)
SOIC (V)
TSSOP (Y)
TDFN (VP2)
UDFN (HU2)
¯¯
CS
SO
¯¯¯
WP
V
SS
1
2
3
4
8 V
CC
¯¯¯¯¯
7 HOLD
6 SCK
5 SI
FUNCTIONAL SYMBOL
V
CC
SI
CS
WP
HOLD
SCK
CAT25080
CAT25160
SO
PIN FUNCTION
Pin Name
¯¯
CS
SO
¯¯¯
WP
V
SS
SI
SCK
¯¯¯¯¯
HOLD
V
CC
Function
Chip Select
Serial Data Output
Write Protect
Ground
Serial Data Input
Serial Clock
Hold Transmission Input
Power Supply
GND
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1122 Rev. A
CATALYST [ CATALYST SEMICONDUCTOR ]
