CAT25080, CAT25160
8-Kb and 16-Kb SPI Serial CMOS EEPROM
FEATURES
DESCRIPTION
10 MHz SPI compatible
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
1.8V to 5.5V supply voltage range
SPI modes (0,0) & (1,1)
32-byte page write buffer
¯¯
Select (CS) input. In addition, the required bus signals
Self-timed write cycle
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.
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
PIN CONFIGURATION
FUNCTIONAL SYMBOL
PDIP (L)
SOIC (V)
TSSOP (Y)
TDFN (VP2)
UDFN (HU2)
VCC
SI
¯¯
1
2
3
4
8
7
6
5
VCC
CS
CAT25080
CAT25160
CS
WP
SO
¯¯¯¯¯
HOLD
SO
¯¯¯
WP
SCK
SI
HOLD
SCK
VSS
PIN FUNCTION
GND
Pin Name
Function
¯¯
CS
Chip Select
SO
Serial Data Output
Write Protect
¯¯¯
WP
VSS
SI
Ground
Serial Data Input
Serial Clock
SCK
¯¯¯¯¯
Hold Transmission Input
Power Supply
HOLD
For Ordering Information details, see page 16.
VCC
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1122 Rev. A
CATALYST [ CATALYST SEMICONDUCTOR ]
