MC54F280 Просмотр технического описания (PDF) - Motorola => Freescale

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Компоненты Описание

производитель

MC54F280

9-BIT PARITY GENERATOR/CHECKER

Motorola => Freescale 

MC54/74F280

FUNCTION TABLE

Number of HIGH Inputs

0, 2, 4, 6, 8

I0-I8

1, 3, 5, 7, 9

H = HIGH Voltage Level; L = LOW Voltage Level

Outputs

∑ Even

H

L

∑ Odd

L

H

GUARANTEED OPERATING RANGES

Symbol

Parameter

VCC

Supply Voltage

TA

Operating Ambient Temperature Range

IOH

Output Current — High

IOL

Output Current — Low

Min

Typ

Max

Unit

54, 74

4.5

5.0

5.5

V

54

-55

25

125

°C

74

0

25

70

54, 74

–1.0

mA

54, 74

20

mA

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Limits

Symbol

Parameter

Min Typ Max Unit

Test Conditions

VIH

Input HIGH Voltage

2.0

V

Guaranteed Input HIGH Voltage for All Inputs

VIL

Input LOW Voltage

0.8

V

Guaranteed Input LOW Voltage for All Inputs

VIK

Input Clamp Diode Voltage

–1.2

V

VCC = MIN, IIN = –18 MA

VOH

Output HIGH Voltage

54, 74 2.5

3.4

V

IOH = –1.0 mA

VCC = 4.5 V

74

2.7

3.4

V

IOH = 1.0 mA

VCC = 4.75 V

VOL

Output Low Voltage

0.35 0.5

V

IOL = 20 mA

VCC = MIN

IIH

Input HIGH Current

20

µA VCC = MAX, VIN = 2.7 V

100

µA VCC = MAX, VIN = 7.0 V

IIL

Input LOW Current

–0.6 mA VCC = MAX, VIN = 0.5 V

IOS

Short Circuit Current (Note 2)

–60

–150 mA VCC = MAX, VOUT = 0 V

ICC

Power Supply Current

25

38

mA VCC = MAX

NOTES:

1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.

2. Not more than one output should be shorted at a time, nor for more than 1 second.

FAST AND LS TTL DATA

4-144

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