E
CAT25C11/03/05/09/17
1K/2K/4K/8K/16K SPI Serial CMOS EEPROM
FEATURES
TM
■ 1,000,000 program/erase cycles
■ 100 year data retention
■ Self-timed write cycle
■ 10 MHz SPI compatible
■ 1.8 to 6.0 volt operation
■ Hardware and software protection
■ Zero standby current
■ 8-pin DIP/SOIC, 8/14-pin TSSOP and 8-pin MSOP
■ 16/32-byte page write buffer
■ Low power CMOS technology
■ SPI modes (0,0 & 1,1)*
■ Write protection
– Protect first page, last page, any 1/4 array or
lower 1/2 array
■ Commercial, industrial, automotive and extended
temperature ranges
DESCRIPTION
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.
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
PIN CONFIGURATION
DIP Package (P, L)
SOIC Package (S, V)
TSSOP Package (U, Y)
TSSOP Package (U14, Y)
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
5
6
7
14
13
12
11
10
9
V
CC
V
CS
SO
WP
CS
SO
CS
SO
NC
NC
V
CC
1
2
3
4
8
7
6
5
CC
CS
V
CC
HOLD
SCK
SI
HOLD
SCK
SI
HOLD
SO
HOLD
SCK
SI
NC
WP
WP
NC
V
V
V
SS
SS
SS
NC
NC
WP
SCK
SI
MSOP Package (R, Z)*
BLOCK DIAGRAM
V
SS
8
1
2
3
4
8
7
6
5
CS
SO
WP
V
CC
HOLD
SCK
SENSE AMPS
SHIFT REGISTERS
V
SI
SS
*CAT25C11/03 only
COLUMN
DECODERS
PIN FUNCTIONS
WORD ADDRESS
BUFFERS
Pin Name
SO
Function
Serial Data Output
Serial Clock
SO
SI
I/O
CONTROL
SCK
WP
CS
EEPROM
ARRAY
SPI
CONTROL
LOGIC
XDEC
Write Protect
WP
HOLD
SCK
VCC
+1.8V to +6.0V Power Supply
Ground
VSS
BLOCK
PROTECT
LOGIC
CS
Chip Select
DATA IN
STORAGE
SI
Serial Data Input
Suspends Serial Input
No Connect
HOLD
NC
HIGH VOLTAGE/
TIMING CONTROL
STATUS
REGISTER
* Other SPI modes available on request.
© 2002 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 1017, Rev. F
1