AM79C987 datasheet(21/30 Pages) AMD

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AMD

P R E L I M I N A R Y

Am79C987

ABSOLUTE MAXIMUM RATINGS

Storage Temperature

–65

°C to +150°C

. . . . . . . . . . .

Ambient Temperature

Under Bias

°C to +70°C

. . . . . . . . . . . . . . . . . . . . . .

Supply Voltage

–0.3 V to +6.0 V

. . . . . . . . . . . . . . . .

Stresses above those listed under Absolute Maximum Rat-

ings may cause permanent device failure. Functionality at or

above these limits is not implied. Exposure to absolute maxi-

mum ratings for extended periods may affect device reliability.

OPERATING RANGES

Commercial (C) Devices

Case Temperature (TA)

°C to +70°C

. . . . . . . . . . . .

Supply Voltages (VDD)

5 V

± 5%

. . . . . . . . . . . . . . . . .

All Inputs Within

the Range

VDD + 0.5 V

≤ VIN ≤ VSS –0.5 V

. . . . . . . . . .

Operating ranges define those limits between which the func-

tionality of the device is guaranteed.

DC CHARACTERISTICS

Symbol

Parameter Description

Test Condition

Min

Max

Unit

VIL

Input LOW Voltage

VSS = 0.0 V

–0.5

0.8

VIH

Input HIGH Voltage

2.0

0.5 +VDD

VOL

Output LOW Voltage

IOL = 4.0 mA

0.4

VOH

Output High Voltage

IOH = –0.4 mA

2.4

VOLOD

Open Drain Output Low Voltage

IOLOD = 12 mA

0.4

IIL

Input Leakage Current

0 < VIN and VIN < VDD +0.5 V

µA

VILX

CK Input LOW Voltage

VSS = 0.0 V

–0.5

1.0

VIHX

CK Input HIGH Voltage

VSS = 0.0 V

3.8

0.5 +VDD

IILX

CK Input LOW Current

VIN = VSS

µA

IIHX

CK Input HIGH Current

VIN = VDD

µA

IDD

Power Supply Current

fCK = 20 MHz

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