CAT28LV256LA-25T datasheet(6/12 Pages) CATALYST

No de pièce	CAT28LV256LA-25T

Description	256K-Bit CMOS PARALLEL E2PROM

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Fabricant	CATALYST [Catalyst Semiconductor]

Site Internet	http://www.catalyst-semiconductor.com

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CAT28LV256

6

Doc. No. 1071, Rev. B

ADDRESS

CE

OE

WE

DATA OUT

tAS

DATA IN

DATA VALID

HIGH-Z

tCS

tAH

tCH

tWC

tOEH

tBLC

tDH

tDS

tOES

tWP

ADDRESS

CE

OE

WE

tRC

DATA OUT

DATA VALID

tCE

tOE

tOH

tAA

tOHZ

tHZ

VIH

HIGH-Z

tLZ

tOLZ

DEVICE OPERATION

Read

Data stored in the CAT28LV256 is transferred to the

data bus when

WE is held high, and both OE and CE are

held low. The data bus is set to a high impedance state

when either

CE or OE goes high. This 2-line control

architecture can be used to eliminate bus contention in

a system environment.

Byte Write

A write cycle is executed when both

CE and WE are low,

and

OE is high. Write cycles can be initiated using either

WE or CE, with the address input being latched on the

falling edge of

WE or CE, whichever occurs last. Data,

conversely, is latched on the rising edge of

WE or CE,

whichever occurs first. Once initiated, a byte write cycle

automatically erases the addressed byte and the new

data is written within 10 ms.

Figure 3. Read Cycle

28LV256 F06

Figure 4. Byte Write Cycle [

WE

WE Controlled]

28LV256 F07

Numéro de pièce similaire - CAT28LV256LA-25T

Fabricant	No de pièce	Fiches technique	Description
ON Semiconductor	CAT28LV256LA25	81Kb / 12P	256K-Bit CMOS PARALLEL EEPROM Doc. No. MD-1071, Rev. E
ON Semiconductor	CAT28LV256LA30	81Kb / 12P	256K-Bit CMOS PARALLEL EEPROM Doc. No. MD-1071, Rev. E

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Description similaire - CAT28LV256LA-25T

Fabricant	No de pièce	Fiches technique	Description
Catalyst Semiconductor	CAT28HT256	218Kb / 10P	256K-Bit CMOS PARALLEL E2PROM
	CAT28LV256	53Kb / 10P	256K-Bit CMOS PARALLEL E2PROM
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	CAT28LV65	79Kb / 10P	64K-Bit CMOS PARALLEL E2PROM
	CAT28C512	97Kb / 10P	512K-Bit CMOS PARALLEL E2PROM
	CAT28C17A	59Kb / 8P	16K-Bit CMOS PARALLEL E2PROM
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CAT28LV256LA-25T Fiches technique(PDF) 6 Page - Catalyst Semiconductor

CAT28LV256LA-25T Fiches technique(HTML) 6 Page - Catalyst Semiconductor

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