74HC4053_90 datasheet(16/17 Pages) PHILIPS

16 / 17 page

December 1990

Philips Semiconductors

Product speciﬁcation

Triple 2-channel analog

multiplexer/demultiplexer

74HC/HCT4053

TEST CIRCUIT AND WAVEFORMS

Fig.20 Test circuit for measuring AC performance.

Conditions

TEST

SWITCH

VIS

tPZH

tPZL

tPHZ

tPLZ

others

VEE

VCC

VEE

VCC

open

VCC

VEE

VCC

VEE

pulse

FAMILY

AMPLITUDE

tr; tf

fmax;

PULSE WIDTH

OTHER

74HC

VCC

50%

<2 ns

6 ns

74HCT

3.0 V

1.3 V

<2 ns

6 ns

CL = load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values).

RT = termination resistance should be equal to the output impedance ZO of the pulse generator.

tr =tf = 6 ns; when measuring fmax, there is no constraint to tr, tf with 50% duty factor.

Fig.21 Input pulse definitions.

Conditions

TEST

SWITCH

VIS

tPZH

tPZL

tPHZ

tPLZ

others

VEE

VCC

VEE

VCC

open

VCC

VEE

VCC

VEE

pulse

FAMILY

AMPLITUDE

tr; tf

fmax;

PULSE WIDTH

OTHER

74HC

VCC

50%

<2 ns

6 ns

74HCT

3.0 V

1.3 V

<2 ns

6 ns

CL = load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values).

RT = termination resistance should be equal to the output impedance ZO of the pulse generator.

tr =tf = 6 ns; when measuring fmax, there is no constraint to tr, tf with 50% duty factor.

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