W78E54 datasheet(13/23 Pages) WINBOND

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W78E54

Publication Release Date: November 1997

- 13 -

Revision A2

DC CHARACTERISTICS

(VDD-VSS = 5V

±10%, TA = 25°C, Fosc = 20 MHz, unless otherwise specified.)

PARAMETER

SYM.

SPECIFICATION

UNIT

TEST CONDITIONS

MIN.

MAX.

Operating Voltage

VDD

4.5

5.5

Operating Current

IDD

No load

VDD = 5.5V

Idle Current

IIDLE

Idle mode

VDD = 5.5V

Power Down Current

IPWDN

µA

Power-down mode

VDD = 5.5V

Input Current

P1, P2, P3, P4

IIN1

-50

+10

µA

VDD = 5.5V

VIN = 0V or VDD

Input Current

RST

IIN2

-10

+300

µA

VDD = 5.5V

0 < VIN < VDD

Input Leakage Current

P0, /EA

ILK

-10

+10

µA

VDD = 5.5V

0V <VIN < VDD

Logic 1 to 0 Transition

Current

P1, P2, P3, P4

ITL [*4]

-500

-200

µA

VDD = 5.5V

VIN =2.0V

Input Low Voltage

P0, P1, P2, P3, P4, EA

VIL1

0.8

VDD = 4.5V

Input Low Voltage

RST

VIL2

0.8

VDD = 4.5V

Input Low Voltage

XTAL1[*4]

VIL3

0.8

VDD = 4.5V

Input High Voltage

P0, P1, P2, P3, P4, EA

VIH1

2.4

VDD +0.2

VDD = 5.5V

Input High Voltage

RST

VIH2

3.5

VDD +0.2

VDD = 5.5V

Input High Voltage

XTAL1 [*4]

VIH3

3.5

VDD +0.2

VDD = 5.5V

Output Low Voltage

P1, P2, P3, P4

VOL1

0.45

VDD = 4.5V

IOL = +2 mA

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