MC74AC253 查看數據表（PDF） - ON Semiconductor

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MC74AC253

Dual 4−Input Multiplexer with 3−State Outputs

ON Semiconductor 

MC74AC253, MC74ACT253

AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)

74ACT

74ACT

Symbol

Parameter

VCC*

(V)

TA = +25°C

CL = 50 pF

TA = −40°C

to +85°C

CL = 50 pF

Unit

Fig.

No.

Min Typ Max Min Max

tPLH

Propagation Delay

Sn to Zn

tPHL

Propagation Delay

Sn to Zn

tPLH

Propagation Delay

In to Zn

tPHL

Propagation Delay

In to Zn

tPZH

Output Enable Time

tPZL

Output Enable Time

tPHZ

Output Disable Time

tPLZ

Output Disable Time

* Voltage Range 5.0 V is 5.0 V ±0.5 V.

5.0 2.0

−

11.5 2.0 13.0

ns

3−6

5.0 3.0

− 13.0 2.5 14.5

ns

3−6

5.0 2.5

− 10.0 2.0 11.0

ns

3−5

5.0 3.5

−

11.0 3.0 12.5

ns

3−5

5.0 2.0

−

7.5 1.5 8.5

ns

3−7

5.0 2.0

−

8.0 1.5 9.0

ns

3−8

5.0 3.0

−

9.5 2.5 10.0

ns

3−7

5.0 2.5

−

7.5 2.0 8.5

ns

3−8

CAPACITANCE

Symbol

Parameter

CIN

Input Capacitance

CPD

Power Dissipation Capacitance

Value

Typ

Unit

4.5

pF

50

pF

Test Conditions

VCC = 5.0 V

VCC = 5.0 V

DIP−16

MC74AC157N

AWLYYWW

MC74ACT157N

AWLYYWW

MARKING DIAGRAMS

SO−16

TSSOP−16

AC157

AWLYWW

AC

157

ALYW

ACT157

AWLYWW

ACT

157

ALYW

A

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

EIAJ−16

74AC157

ALYW

74ACT157

ALYW

http://onsemi.com

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