W27C512 datasheet(6/15 Pages) WINBOND

Part #	W27C512

Description	64K X 8 ELECTRICALLY ERASABLE EPROM

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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W27C512

- 6 -

READ OPERATION DC CHARACTERISTICS

(VCC = 5.0V

±5%, TA = 0 to 70° C)

PARAMETER

SYM.

CONDITIONS

LIMITS

UNIT

MIN.

TYP.

MAX.

Input Load Current

ILI

VIN = 0V to VCC

-5

-

5

µA

Output Leakage Current

ILO

VOUT = 0V to VCC

-10

-

10

µA

Standby VCC Current

(TTL input)

ISB

CE = VIH

-

1.0

mA

Standby VCC Current

(CMOS input)

ISB1

CE = VCC

±0.3V

-

5

100

µA

VCC Operating Current

ICC

CE = VIL

IOUT = 0 mA, f = 5 MHz

-

30

mA

Input Low Voltage

VIL

-

-0.3

-

0.8

V

Input High Voltage

VIH

-

2.2

-

VCC +0.5

V

Output Low Voltage

VOL

IOL = 2.1 mA

-

0.45

V

Output High Voltage

VOH

IOH = -0.4 mA

2.4

-

V

READ OPERATION AC CHARACTERISTICS

(VCC = 5.0V

±5%, TA = 0 to 70° C)

PARAMETER

SYM.

W27C512-45

W27C512-70

W27C512-90

W27C512-12

UNIT

MIN.

MAX.

MIN.

MAX.

MIN.

MAX.

MIN.

MAX.

Read Cycle Time

TRC

45

-

70

-

90

-

120

-

nS

Chip Enable Access Time

TCE

-

45

-

70

-

90

-

120

nS

Address Access Time

TACC

-

45

-

70

-

90

-

120

nS

Output Enable Access Time

TOE

-

20

-

30

-

40

-

55

nS

OE

/VPP High to High-Z Output

TDF

-

20

-

30

-

30

-

30

nS

Output Hold from Address Change

TOH

0

-

0

-

0

-

0

-

nS

Note: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.

DC PROGRAMMING CHARACTERISTICS

(VCC = 5.0V

±5%, TA = 25° C ±5° C)

PARAMETER

SYM.

CONDITIONS

LIMITS

UNIT

MIN.

TYP.

MAX.

Input Load Current

ILI

VIN = VIL or VIH

-10

-

10

µA

VCC Program Current

ICP

CE = VIL,

OE /VPP = VPP

-

30

mA

VPP Program Current

IPP

CE = VIL,

OE /VPP = VPP

-

30

mA

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