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MC74ACT244

Octal Buffer/Line Driver with 3-State Outputs

ON Semiconductor 

MC74AC244, MC74ACT244

AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)

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

Data to Output

tPHL

Propagation Delay

Data to Output

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 6.5 9.0 1.5 10.0 ns

3–5

5.0 2.0 7.0 9.0 1.5 10.0 ns

3–5

5.0 1.5 6.0 8.5 1.0 9.5

ns

3–7

5.0 2.0 7.0 9.5 1.5 10.5 ns

3–8

5.0 2.0 7.0 9.5 1.5 10.5 ns

3–7

5.0 2.5 7.5 10.0 2.0 10.5 ns

3–8

CAPACITANCE

Symbol

Parameter

CIN

CPD

Input Capacitance

Power Dissipation Capacitance

Value

Typ

Unit

4.5

pF

45

pF

Test Conditions

VCC = 5.0 V

VCC = 5.0 V

PDIP–20

MC74AC244N

AWLYYWW

MC74ACT244N

AWLYYWW

MARKING DIAGRAMS

SO–20

TSSOP–20

AC244

AWLYYWW

AC

244

ALYW

ACT244

AWLYYWW

ACT

244

ALYW

A

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

EIAJ–20

74AC244

AWLYWW

74ACT244

AWLYWW

http://onsemi.com

5

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