CAT25C01, CAT25C02, CAT25C04
1K/2K/4K SPI Serial CMOS EEPROM
FEATURES
I
10 MHz SPI compatible
I
1.8 to 5.5 volt operation
I
16-byte page write buffer
I
Hardware and software protection
I
Block write protection
DESCRIPTION
The CAT25C01/02/04 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
CAT25C01/02/04 features a 16-byte page write buffer.
The device operates via the SPI bus serial interface and
is enabled though a Chip Select (CS). In addition to the
Chip Select, the clock input (SCK), data in (SI) and data
out (SO) are required to access the device. The
HOLD
pin may be used to suspend any serial communication
without resetting the serial sequence. The CAT25C01/
02/04 is designed with software and hardware write
protection features including Block Write protection. The
device is available in 8-pin DIP, 8-pin SOIC and 8-pin
TSSOP packages.
– Protect 1/4, 1/2 or all of EEPROM array
I
Low power CMOS technology
I
SPI modes (0,0 & 1,1)
I
Industrial temperature range
I
1,000,000 program/erase cycles
I
100 year data retention
I
Self-timed write cycle
I
RoHS compliant
“
8-pin PDIP, SOIC and TSSOP packages
PIN CONFIGURATION
PDIP (L)
SOIC (V)
TSSOP (Y)
PIN FUNCTIONS
Pin Name
SO
SCK
WP
V
CC
V
SS
CS
SI
i
D
c
s
CS
1
2
3
4
8
7
6
5
SO
WP
VSS
u
n
i
t
n
o
”
&
“
”
VCC
SCK
SI
HOLD
FUNCTIONAL SYMBOL
VCC
d
e
SI
CS
WP
a
P
s
t
r
CAT25C01
CAT25C02
CAT25C04
SO
HOLD
SCK
Function
VSS
Serial Data Output
Serial Clock
Write Protect
+1.8V to +5.5V Power Supply
Ground
Chip Select
Serial Data Input
Suspends Serial Input
HOLD
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1105, Rev. B
CATALYST [ CATALYST SEMICONDUCTOR ]
