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CAT24WC66 Datasheet(PDF) 1 Page - Catalyst Semiconductor

Part No. CAT24WC66
Description  64K-Bit I2C Serial CMOS EEPROM
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Maker  CATALYST [Catalyst Semiconductor]
Homepage  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT24WC66 Datasheet(HTML) 1 Page - Catalyst Semiconductor

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background image
1
VCC
WP
SCL
SDA
1
2
3
4
8
7
6
5
A0
VCC
WP
SCL
SDA
1
2
3
4
8
7
6
5
A1
A2
VSS
A0
A1
A2
VSS
DESCRIPTION
The CAT24WC66 is a 64K-bit Serial CMOS EEPROM
internally organized as 8192 words of 8 bits each.
Catalyst’s advanced CMOS technology substantially
reduces
device
power
requirements.
The
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol.
CAT24WC66 features a 32-byte page write buffer. The
device operates via the I2C bus serial interface and is
available in 8-pin DIP or 8-pin SOIC packages.
PIN CONFIGURATION
BLOCK DIAGRAM
PIN FUNCTIONS
Pin Name
Function
A0, A1, A2
Device Address Inputs
SDA
Serial Data/Address
SCL
Serial Clock
WP
Write Protect
VCC
+1.8V to +6V Power Supply
VSS
Ground
CAT24WC66
64K-Bit I2C Serial CMOS EEPROM
s 400 kHz I2C bus compatible*
s 1.8 to 6 volt read and write operation
s Cascadable for up to eight devices
s 32-byte page write buffer
s Self-timed write cycle with auto-clear
s Schmitt trigger inputs for noise protection
FEATURES
DIP Package (P, L)
SOIC Package (J, K, W, X)
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 1037, Rev. H
DOUT
ACK
SENSE AMPS
SHIFT REGISTERS
CONTROL
LOGIC
WORD ADDRESS
BUFFERS
START/STOP
LOGIC
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
256 X 256
VCC
EXTERNAL LOAD
COLUMN
DECODERS
XDEC
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
VSS
WP
SCL
A0
A1
A2
SDA
256
256
EEPROM
ALO
GEN FR
TM
LEAD FREE
s Commercial, industrial and automotive
temperature ranges
s Write protection
–Top 1/4 array protected when WP at V
IH
s 1,000,000 program/erase cycles
s 100 year data retention
s 8-pin DIP or 8-pin SOIC packages


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