CAT25C01_05 Datasheet, PDF (1/15 Pages) Catalyst Semiconductor – 1K/2K/4K SPI Serial CMOS EEPROM

CAT25C01, CAT25C02, CAT25C04
1K/2K/4K SPI Serial CMOS EEPROM
FEATURES
DESCRIPTION
I 10 MHz SPI compatible
The CAT25C01/02/04 is a 1K/2K/4K Bit SPI Serial
I 1.8 to 5.5 volt operation
I 16-byte page write buffer
I Hardware and software protection
ts I Block write protection
– Protect 1/4, 1/2 or all of EEPROM array
I Low power CMOS technology
r _{I SPI modes (0,0 & 1,1)}
a I Industrial temperature range
I 1,000,000 program/erase cycles
P _{I 100 year data retention}
I Self-timed write cycle
I RoHS compliant “
”&“
”
d _{8-pin PDIP, SOIC and TSSOP packages}
ue _{PIN CONFIGURATION}
tin ^{PDIP (L)}
SOIC (V)
TSSOP (Y)
CS 1
n _{SO 2}
WP 3
o _{VSS 4}
8 VCC
7 HOLD
6 SCK
5 SI
c _{PIN FUNCTIONS}
is ^{Pin Name}
Function
SO
Serial Data Output
D^SCK
Serial Clock
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.
FUNCTIONAL SYMBOL
VCC
SI
CS
CAT25C01
WP
CAT25C02
SO
CAT25C04
HOLD
SCK
VSS
WP
Write Protect
VCC
+1.8V to +5.5V Power Supply
VSS
Ground
CS
Chip Select
SI
Serial Data Input
HOLD
Suspends Serial Input
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1105, Rev. B