EN29F002NB70T Просмотр технического описания (PDF) - Eon Silicon Solution Inc.

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производитель

EN29F002NB70T

2 Megabit (256K x 8-bit) Flash Memory

Eon Silicon Solution Inc. 

Flowchart 8. Block Protect Flowchart

EN29F002 / EN29F002N

Set-up

Protection

Verify

START

SET UP BLOCK ADDRESS

[A17, A16, A15, A14, A13]

WE = VIH, A6 = VIL

PLSCNT = 1

OE = VID, A9 = VID

CE = VIL

Wait 1µs

WE = VIL

Wait 100µs

WE = VIH, CE = VIH

OE = VIL

Wait 1µs, CE = VIL

Increment Pulse Count

CE = VIH

VERIFY BLOCK PROTECTION

@ BLOCK ADDRESS [A17, A16, A15, A14, A13]

A0, A6=VIL, A1=VIH, and A9 = VID

DATA = 01h

NO

YES

A9 = V IH

PASS

NO

PLSCNT = 25?

YES

A9 = V IH

FAIL

4800 Great America Parkway, Suite 202

20

Santa Clara, CA 95054

Tel: 408-235-8680

Fax: 408-235-8685

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