W27C020M Просмотр технического описания (PDF) - Winbond

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W27C020M

256K x 8 ELECTRICALLY ERASABLE EPROM

Winbond 

W27C020M

TIMING WAVEFORMS

AC Read Waveform

VIH

Address

VIL

VIH

CE

VIL

VIH

OE

VIL

Outputs

High Z

Address Valid

TCE

TOE

TACC

TDF

TOH

Valid Output

High Z

Erase Waveform

VIH

Address

VIL

Data

14.0V

5.0V

VPP

VIH

CE

VIL

VIH

OE VIL

PGM

Read

Read

Manufacturer Device

SID

SID

A9 = 12.0V

Chip Erase

A9 = 14.0V

Erase Verify

Others = VIL

A0 = V IL

A0=VIH

Others=VIL

TAS

TAS

DA

85

Others = VIL

TAS

TAHC

Data All One

Address

Stable

TDFP

DOUT

Address

Stable

DOUT

TDS

TDH

TAH

TVPS

TCE

Blank Check

Read Verify

Address

Stable

TACC

DOUT

5V

TOE

TOE

TOES

TOE

TCES

TPWE

TOEV

-8-

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