CAT28F002 datasheet(15/16 Pages) CATALYST

Part #	CAT28F002

Description	2 Megabit CMOS Boot Block Flash Memory

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Manufacturer	CATALYST [Catalyst Semiconductor]

Direct Link	http://www.catalyst-semiconductor.com

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15 / 16 page

CAT28F002

15

Doc. No. 25072-00 2/98 F-1

ALTERNATE CE-CONTROLLED WRITES

VCC = +5V ±10%, unless otherwise specified

JEDEC

Standard

28F002-90

28F002-12

28F002-15

Symbol

Parameter

Min. Max. Min. Max. Min. Max. Unit

tAVAV

tWC

Write Cycle Time

90

120

150

ns

tAVEH

tAS

Address Setup to

CE Going High

50

ns

tEHAX

tAH

Address Hold Time from

CE Going High

0

ns

tDVEH

tDS

Data Setup Time to

CE Going High

40

ns

tEHDX

tDH

Data Hold Time from

CE Going High

0

ns

tWLEL

tWS

WE Setup Time to CE Going Low

0

ns

tEHWH

tWH

WE Hold Time from CE Going High

0

ns

tELEH

tCP

CE Pulse Width

50

ns

tEHEL

tEPH

CE Pulse Width High

30

ns

tPHEL

tPS(1)

RP High Recovery to CE Going Low

215

ns

tPHHEH

tPHS(1) RP VHH Setup to CE Going High

100

ns

tVPEH

tVPS(1) VPP Setup to CE Going High

100

ns

tEHQV1

—

Duration of Programming Operations

6

µs

tEHQV2

—

Duration of Erase Operations (Boot)

0.3

Sec

tEHQV3

—

Duration of Erase Operations (Parameter)

0.3

Sec

tEHQV4

—

Duration of Erase Operations (Main)

0.6

Sec

tQVVL

tVPH(1) VPP Hold from Valid Status Reg Data

0

ns

tQVPH

tPHH(1) RP VHH Hold from Status Reg Data

0

ns

tPHBR(1)

—

Boot Block Relock Delay

100

ns

Note:

(1) This parameter is tested initially and after a design or process change that affects the parameter.

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