CAT24WC256WA-1.8 datasheet, PDF

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CAT24WC256WA-1.8: DescriptionEEPROM, 32KX8, Serial, CMOS, PDSO8,; Categorystorage storage; File Size406KB，10 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/; Environmental Compliance

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CAT24WC256WA-1.8 Overview

EEPROM, 32KX8, Serial, CMOS, PDSO8,

CAT24WC256WA-1.8 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Catalyst
package instruction	SOP, SOP8,.25
Reach Compliance Code	unknown
Data retention time - minimum	100
Durability	100000 Write/Erase Cycles
I2C control byte	10100DDR
JESD-30 code	R-PDSO-G8
memory density	262144 bit
Memory IC Type	EEPROM
memory width	8
Number of terminals	8
word count	32768 words
character code	32000
Maximum operating temperature	105 °C
Minimum operating temperature	-40 °C
organize	32KX8
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	SERIAL
power supply	2/5 V
Certification status	Not Qualified
Serial bus type	I2C
Maximum standby current	0.00001 A
Maximum slew rate	0.003 mA
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
write protect	HARDWARE

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CAT24WC256

256K-Bit I

C Serial CMOS EEPROM

(CAT24WC256 not recommended for new designs. See CAT24FC256 data sheet.)

GEN

ALO

FEATURES

1MHz I

C bus compatible*

1.8 to 6 volt operation

Low power CMOS technology

64-byte page write buffer

Self-timed write cycle with auto-clear

Commercial, industrial and automotive

Write protect feature

– entire array protected when WP at V

100,000 program/erase cycles

100 year data retention

8-pin DIP or 8-pin SOIC

"Green" package options available

temperature ranges

DESCRIPTION

The CAT24WC256 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 CAT24WC256

features a 64-byte page write buffer. The device oper-

ates via the I

C bus serial interface and is available in 8-

pin DIP or 8-pin SOIC packages.

PIN CONFIGURATION

DIP Package (P, L)

VSS

VCC

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)

VSS

VCC

SCL

SDA

START/STOP

LOGIC

XDEC

CONTROL

LOGIC

512

EEPROM

512X512

PIN FUNCTIONS

Pin Name

A0, A1

SDA

SCL

Function

Address Inputs

Serial Data/Address

Serial Clock

Write Protect

SCL

STATE COUNTERS

SLAVE

ADDRESS

COMPARATORS

HIGH VOLTAGE/

TIMING CONTROL

DATA IN STORAGE

+1.8V to +6.0V Power Supply

Ground

No Connect

* Catalyst Semiconductor is licensed by Philips Corporation to carry the I

C Bus Protocol.

Characteristics subject to change without notice

Doc. No. 1031, Rev. F

CAT24WC256WA-1.8 Related Products

	CAT24WC256WA-1.8	CAT24WC256WA	CAT24WC256WA-3	CAT24WC256WI-3
Description	EEPROM, 32KX8, Serial, CMOS, PDSO8,	EEPROM, 32KX8, Serial, CMOS, PDSO8,	EEPROM, 32KX8, Serial, CMOS, PDSO8,	EEPROM, 32KX8, Serial, CMOS, PDSO8,
Is it Rohs certified?	conform to	conform to	conform to	conform to
Maker	Catalyst	Catalyst	Catalyst	Catalyst
package instruction	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25
Reach Compliance Code	unknown	unknown	unknown	unknown
Data retention time - minimum	100	100	100	100
Durability	100000 Write/Erase Cycles	100000 Write/Erase Cycles	100000 Write/Erase Cycles	100000 Write/Erase Cycles
I2C control byte	10100DDR	10100DDR	10100DDR	10100DDR
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
memory density	262144 bit	262144 bit	262144 bit	262144 bit
Memory IC Type	EEPROM	EEPROM	EEPROM	EEPROM
memory width	8	8	8	8
Number of terminals	8	8	8	8
word count	32768 words	32768 words	32768 words	32768 words
character code	32000	32000	32000	32000
Maximum operating temperature	105 °C	105 °C	105 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C
organize	32KX8	32KX8	32KX8	32KX8
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP	SOP	SOP
Encapsulate equivalent code	SOP8,.25	SOP8,.25	SOP8,.25	SOP8,.25
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Parallel/Serial	SERIAL	SERIAL	SERIAL	SERIAL
power supply	2/5 V	3/5 V	3.3/5 V	3.3/5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Serial bus type	I2C	I2C	I2C	I2C
Maximum standby current	0.00001 A	0.00001 A	0.00001 A	0.000001 A
Maximum slew rate	0.003 mA	0.003 mA	0.003 mA	0.003 mA
surface mount	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
write protect	HARDWARE	HARDWARE	HARDWARE	HARDWARE

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