74LVC1G3157 datasheet(13/22 Pages) PHILIPS

13 / 22 page

9397 750 14524

Product data sheet

Rev. 01 — 7 February 2005

13 of 22

Philips Semiconductors

74LVC1G3157

2-channel analog multiplexer/demultiplexer

Fig 12. Test circuit for measuring break-before-make timing

Test data is given in Table 13.

Deﬁnitions test circuit:

RT = Termination resistance should be equal to output impedance Zo of the pulse generator.

CL = Load capacitance including jig and probe capacitance.

RL = Load resistance.

VEXT = Test voltage for switching times.

Fig 13. Load circuitry for switching times

Table 13:

Test data

Supply voltage

Input

Load

VEXT

VCC

tr, tf

tPLH, tPHL

tPZH, tPHZ

tPZL, tPLZ

1.65 V to 1.95 V

VCC

≤ 2.0 ns 50 pF

500

Ω

open

GND

2VCC

2.3 V to 2.7 V

VCC

≤ 2.0 ns 50 pF

500

Ω

open

GND

2VCC

2.7 V

VCC

≤ 2.5 ns 50 pF

500

Ω

open

GND

2VCC

3 V to 3.6 V

VCC

≤ 2.5 ns 50 pF

500

Ω

open

GND

2VCC

4.5 V to 5.5 V

VCC

≤ 2.5 ns 50 pF

500

Ω

open

GND

2VCC

001aac367

VI = 0.5VCC

VCC

GND

0.9VO

0.5VS

001aac368

VEXT

VCC

mna616

D.U.T.

PULSE

GENERATOR

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