MC14583B 查看數據表（PDF） - Motorola => Freescale

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MC14583B

Dual Schmitt Trigger

Motorola => Freescale 

PULSE

GENERATOR 1

PULSE

GENERATOR 2

VDD

Ain Aout

Aout

DIS

Bout

Bin Bout

VDD

1 k*

1

SW

2

CL

1 k*

VSS

Test

ton HL

ton LH

toff HL

toff LH

Switch Position

1

2

2

1

* Metal film, ± 1%, 1/4 W or greater

CL = 15 pF, which includes test circuit capacitance.

Ain

Bin

3–STATE

DISABLE

Aout

Bout

50%

ton LH

ton LH

10%

toff LH

toff LH

VOH′ ton HL

90%

90%

VOH

10%

VOL

toff HL

toff LH

90% VOH′

VOH′

90% VOH

VDD

VSS

VDD

VSS

VDD

VSS

VOH

10% (VOH – VOL′)

VOL′VOL

VOH

10% (VOH – VOL′)

VOL′ VOL

SWITCH POSITION 2

SWITCH POSITION 1

VOL′ and VOH′ refer to the levels present as a result of the 1 k ohm load resistors.

Figure 5. 3–State Switching Time Test Circuit and Waveforms

MC14583B

6

MOTOROLA CMOS LOGIC DATA

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