CAT25010 Datasheet, PDF (1/11 Pages) Catalyst Semiconductor – 1K/2K/4K SPI Serial CMOS EEPROM

CAT25010/20/40
1K/2K/4K SPI Serial CMOS EEPROM
FEATURES
s 10 MHz SPI compatible
s 1.8 to 6.0 volt operation
s Hardware and software protection
s Low power CMOS technology
s SPI modes (0,0 & 1,1)*
s Commercial, industrial, automotive and extended
temperature ranges
ALOGEN ^FR
LEA _{D F REETM}
s 1,000,000 program/erase cycles
s 100 year data retention
s Self-timed write cycle
s 8-Pin DIP/SOIC, 8-Pin TSSOP and 8-Pin MSOP
s 16-byte page write buffer
s Block write protection
– Protect 1/4, 1/2 or all of EEPROM array
DESCRIPTION
The CAT25010/20/40 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
CAT25010/20/40 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 CAT25010/
20/40 is designed with software and hardware write
protection features including Block Write protection. The
device is available in 8-pin DIP, 8-pin SOIC, 8-pin MSOP
and 8-pin TSSOP packages.
PIN CONFIGURATION
SOIC Package (S, V)
CS ¹
SO ²
WP ³
VSS 4
8 VCC
7 _HOLD
6 SCK
5 SI
MSOP Package (R, Z)*
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 _SI
*CAT 25010/20 only
DIP Package (P, L)
TSSOP Package (U, Y)
CS ¹
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
CS ¹
SO 2
WP ³
VSS
4
8
VCC
7 _HOLD
6 _SCK
5 _SI
PIN FUNCTIONS
Pin Name
Function
SO
Serial Data Output
SCK
Serial Clock
WP
Write Protect
VCC
+1.8V to +6.0V Power Supply
VSS
Ground
CS
Chip Select
SI
Serial Data Input
HOLD
Suspends Serial Input
NC
No Connect
BLOCK DIAGRAM
SENSE AMPS
SHIFT REGISTERS
SO
SI
CS
WP
HOLD
SCK
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
I/O
CONTROL
SPI
CONTROL
LOGIC
BLOCK
PROTECT
LOGIC
STATUS
REGISTER
XDEC
E²PROM
ARRAY
DATA IN
STORAGE
HIGH VOLTAGE/
TIMING CONTROL
25C128 F02
* Other SPI modes available on request.
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1006, Rev. L