74HC258 Просмотр технического описания (PDF) - NXP Semiconductors.

Номер в каталоге

Компоненты Описание

Список матч

74HC258

Quad 2-input multiplexer; 3-state; inverting

NXP Semiconductors. 

NXP Semiconductors

74HC258

Quad 2-input multiplexer; 3-state; inverting

VI 90 %

tW

negative

pulse

VM

10 %

0V

tf

VI

positive

pulse

tr

90 %

VM

10 %

0V

tW

VM

tr

tf

VM

VI

G

VCC

VO

DUT

RT

VCC

RL S1

CL

open

001aad983

Fig 8.

Test data is given in Table 9.

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.

S1 = Test selection switch.

Test circuit for measuring switching times

Table 9. Test data

Supply voltage Input

VCC

VI

2.0 V

VCC

4.5 V

VCC

6.0 V

VCC

5.0 V

VCC

tr = tf

6 ns

6 ns

6 ns

6 ns

Load

CL

50 pF

50 pF

50 pF

15 pF

RL

1 kΩ

1 kΩ

1 kΩ

1 kΩ

S1

tPZL, tPLZ

VCC

VCC

VCC

VCC

tPZH, tPHZ

GND

GND

GND

GND

tPHL, tPLH

open

open

open

open

74HC258_4

Product data sheet

Rev. 04 — 14 April 2008

© NXP B.V. 2008. All rights reserved.

8 of 14

Share Link: