CAT25C11/03/05/09/17
1K/2K/4K/8K/16K SPI Serial CMOS EEPROM
FEATURES
■ 10 MHz SPI compatible
■ 1.8 to 6.0 volt operation
■ Hardware and software protection
■ Low power CMOS technology
■ SPI modes (0,0 & 1,1)*
■ 1,000,000 program/erase cycles
■ 100 year data retention
■ Self-timed write cycle
■ 8-pin DIP/SOIC, 8-pin TSSOP and 8-pin MSOP
■ 16/32-byte page write buffer
■ Commercial, industrial, automotive and extended
■ Write protection
temperature ranges
– Protect first page, last page, any 1/4 array or
lower 1/2 array
DESCRIPTION
The CAT25C11/03/05/09/17 is a 1K/2K/4K/8K/16K-Bit
SPI Serial CMOS EEPROM internally organized as
128x8/256x8/512x8/1024x8/2048x8 bits. Catalyst’s
advanced CMOS Technology substantially reduces
device power requirements. The CAT25C11/03/05
features a 16-byte page write buffer. The 25C09/17
featuresa32-bytepagewritebuffer.Thedeviceoperates
via the SPI bus serial interface and is enabled though a
ChipSelect(CS).InadditiontotheChipSelect,theclock
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
serialsequence.TheCAT25C11/03/05/09/17isdesigned
with software and hardware write protection features
including Block Write protection. The device is available
in 8-pin DIP, 8-pin SOIC, 8/14-pin TSSOP and 8-pin
MSOP packages.
PIN CONFIGURATION
DIP Package (P, L, GL)
MSOP Package (R, Z, GZ)* SOIC Package (S, V, GV)
TSSOP Package (U, Y, GY)
1
2
3
4
8
7
6
5
CS
SO
WP
V
CC
HOLD
SCK
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
V
CS
SO
WP
CS
SO
CC
CC
1
2
3
4
8
7
6
5
CS
V
CC
HOLD
SCK
SI
HOLD
SCK
SI
SO
HOLD
SCK
SI
WP
V
SI
WP
SS
V
V
V
SS
SS
SS
*CAT25C11/03 only
BLOCK DIAGRAM
SENSE AMPS
SHIFT REGISTERS
PIN FUNCTIONS
Pin Name
SO
Function
COLUMN
DECODERS
WORD ADDRESS
BUFFERS
Serial Data Output
Serial Clock
SCK
WP
SO
SI
I/O
CONTROL
Write Protect
CS
EEPROM
ARRAY
SPI
CONTROL
LOGIC
XDEC
VCC
+1.8V to +6.0V Power Supply
Ground
WP
HOLD
SCK
VSS
CS
Chip Select
BLOCK
PROTECT
LOGIC
SI
Serial Data Input
Suspends Serial Input
No Connect
HOLD
NC
DATA IN
STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Other SPI modes available on request.
STATUS
REGISTER
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 1017, Rev. L
1