ST78C36 datasheet(19/26 Pages) EXAR

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ST78C36/36A

REV. 5.0.1

ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO

NOTE: Hewlett Packard / Microsoft compliance testing requires all ECP mode drivers to be push-pull and that they have an

impedance controlled series resistor of at least 20 Ohms and that the typical on resistance of the combination of

the driver-resistor pair is in the 45-65 Ohm range.

DC ELECTRICAL CHARACTERISTICS

TA = 0

oC - 70oC, VCC = 5.0V +/- 10%, unless otherwise specified.

SYMBOL

PARAMETER

LIMITS

MIN

TYP

MAX

UNIT

CONDITIONS

VILCK Clock Input Low level

-0.5

0.6

VIHCK Clock Input High level

3.0

VCC

VIL

Input Low level

-0.5

0.8

VIH

Input High level

2.0

VCC

VOL

Output Low level

0.4

DRQ1-3, IOCHRDY: IOL = 14 mA

D0-D7: IOL = 12 mA

PDIR: IOL = 4 mA

All other outputs: IOL = 20mA

VOH

Output High level

2.4

D0-D7: IOH = -12mA

PDIR: IOH = -1mA

All other outputs: IOH = -20mA

ICC

Avg. power supply current

IIL

Input leakage

µA

ICL

Clock leakage

µA

Internal pull up resistor current

-85

-30

µA For inputs -DACK1-3, -ERROR,

SLCT, BUSY, -ACK and PE

ST78C36 Datasheet(PDF) 19 Page - Exar Corporation

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