74LVC245AD データシートの表示（PDF） - Philips Electronics

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74LVC245AD

Octal bus transceiver with direction pin with 5 V tolerant input/outputs (3-state)

Philips Electronics 

Philips Semiconductors

Octal bus transceiver with direction pin with 5 V tolerant

input/outputs (3-state)

Product specification

74LVC245A;

74LVCH245A

handbook, full pagewidth

VI

PULSE

GENERATOR

VCC

VO

D.U.T.

RT

S1

RL

500 Ω

2 × VCC

open

GND

CL

50 pF

RL

500 Ω

MNA368

SWITCH POSITION

TEST

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

SWITCH

open

2 x VCC

GND

VCC

< 2.7 V

2.7 - 3.6 V

VI

VCC

2.7 V

Definitions for test circuit:

RL = Load resistor.

CL = Load capacitance including jig and probe capacitance.

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

Fig.7 Load circuitry for switching times.

2003 May 07

11

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