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CAT24WC257PA

Description
EEPROM, 32KX8, Serial, CMOS, PDIP8, PLASTIC, DIP-8
Categorystorage    storage   
File Size409KB,10 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Download Datasheet Parametric View All

CAT24WC257PA Overview

EEPROM, 32KX8, Serial, CMOS, PDIP8, PLASTIC, DIP-8

CAT24WC257PA Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeDIP
package instructionDIP, DIP8,.3
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Other features100000 PROGRAM/ERASE CYCLES; 100 YEARS DATA RETENTION; SELF TIMED WRITE
Maximum clock frequency (fCLK)0.4 MHz
Data retention time - minimum100
Durability100000 Write/Erase Cycles
I2C control byte10100DDR
JESD-30 codeR-PDIP-T8
JESD-609 codee0
length9.59 mm
memory density262144 bit
Memory IC TypeEEPROM
memory width8
Number of functions1
Number of terminals8
word count32768 words
character code32000
Operating modeSYNCHRONOUS
Maximum operating temperature105 °C
Minimum operating temperature-40 °C
organize32KX8
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP8,.3
Package shapeRECTANGULAR
Package formIN-LINE
Parallel/SerialSERIAL
Peak Reflow Temperature (Celsius)240
power supply3/5 V
Certification statusNot Qualified
Maximum seat height4.57 mm
Serial bus typeI2C
Maximum standby current0.00001 A
Maximum slew rate0.003 mA
Maximum supply voltage (Vsup)6 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)5 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width7.62 mm
Maximum write cycle time (tWC)10 ms
write protectHARDWARE
Base Number Matches1
CAT24WC257
256K-Bit I
2
C Serial CMOS EEPROM
(CAT24WC257 not recommended for new designs. See CAT24FC257 data sheet.)
H
GEN
FR
ALO
EE
LE
A
D
F
R
E
E
TM
FEATURES
I
1MHz I
2
C bus compatible*
I
1.8 to 6 volt operation
I
Low power CMOS technology
I
64-Byte page write buffer
I
Self-timed write cycle with auto-clear
I
Commercial, industrial and automotive
I
Write protect feature
– Top 1/4 array protected when WP at V
IH
I
100,000 program/erase cycles
I
100 year data retention
I
8-pin DIP or 8-pin SOIC
I
"Green" package options available
temperature ranges
DESCRIPTION
The CAT24WC257 is a 256K-bit Serial CMOS EEPROM
internally organized as 32,768 words of 8 bits each.
Catalyst’s advanced CMOS technology substantially
reduces device power requirements. The CAT24WC257
features a 64-byte page write buffer. The device operates
via the I
2
C bus serial interface and is available in 8-pin
DIP or 8-pin SOIC packages.
PIN CONFIGURATION
DIP Package (P, L)
A0
A1
NC
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
BLOCK DIAGRAM
EXTERNAL LOAD
DOUT
ACK
VCC
VSS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
512
SENSE AMPS
SHIFT REGISTERS
SOIC Package (J, W, K, X)
A0
A1
NC
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
SDA
START/STOP
LOGIC
XDEC
WP
CONTROL
LOGIC
512
EEPROM
512X512
PIN FUNCTIONS
Pin Name
A0, A1
SDA
SCL
WP
V
CC
V
SS
NC
Function
Address Inputs
Serial Data/Address
Serial Clock
Write Protect
+1.8V to +6.0V Power Supply
Ground
No Connect
A0
A1
SLAVE
ADDRESS
COMPARATORS
SCL
STATE COUNTERS
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus Protocol.
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
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