CAT25C64_06 Datasheet, PDF (1/16 Pages) Catalyst Semiconductor – 64K-Bit SPI Serial CMOS EEPROM

Not recommended for new designs,
replace with CAT25640
CAT25C64
64K-Bit SPI Serial CMOS EEPROM
FEATURES
I 10 MHz SPI compatible
I 1.8 to 5.5 volt operation
I Hardware and software protection
I Low power CMOS technology
I SPI modes (0,0 &1,1)
I Commercial, industrial and automotive
temperature ranges
I 1,000,000 program/erase cycles
I 100 year data tetention
I Self-timed write cycle
I 8-pin DIP and SOIC
I 64-Byte page write buffer
I Block write protection
– Protect 1/4, 1/2 or all of EEPROM array
DESCRIPTION
The CAT25C64 is a 64K-Bit SPI Serial CMOS EEPROM
internally organized as 8Kx8 bits. Catalyst’s advanced
CMOS Technology substantially reduces device power
requirements. The CAT25C64 features a 64-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 se-
quence. The CAT25C64 is designed with software and
hardware write protection features including Block write
protection. The device is available in 8-pin DIP and
SOIC packages.
PIN CONFIGURATION
PDIP (P, L)
SOIC (S, V)
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 +5.5V Power Supply
VSS
Ground
CS
Chip Select
SI
Serial Data Input
HOLD
Suspends Serial Input
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
FUNCTIONAL SYMBOL
VCC
SI
CS
WP
HOLD
SCK
CAT25C64
VSS
1
SO
Doc. No. 1112, Rev. B