W27E512-45 Просмотр технического описания (PDF) - Winbond

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W27E512-45

64K ´8 ELECTRICALLY ERASABLE EPROM

Winbond 

SMART ERASE ALGORITHM

Start

X=0

Vcc = 5V

OE/Vpp = 14V

A9 = 14V; A0 = VIL

Chip Erase 100 mS Pulse

Address = First Location

Increment X

Vcc = 3.75V

OE/Vpp = VIL

Increment

Address

Erase

Fail

Verify

Pass

No

Last

Address?

Yes

Vcc = 5V

OE/Vpp = VIL

Compare

Fail

All Bytes to

FFs (HEX)

Pass

Pass

Device

- 12 -

W27E512

No

X = 20 ?

Yes

Fail

Device

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