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HD74AC244 Datasheet, PDF (5/9 Pages) Hitachi Semiconductor – Octal Buffer/Line Driver with 3-State Output
HD74AC244/HD74ACT244
AC Characteristics: HD74ACT244
Item
Propagation delay
Data to output
Symbol VCC (V)*1
tPLH
5.0
Propagation delay
tPHL
5.0
Data to output
Output enable time
tZH
5.0
Output enable time
tZL
5.0
Output disable time
tHZ
5.0
Output disable time
tLZ
5.0
Note: 1. Voltage Range 5.0 is 5.0 V ± 0.5 V
Ta = +25°C
CL = 50 pF
Min Typ Max
1.0 6.5 9.0
1.0 7.0 9.0
1.0 6.0 8.5
1.0 7.0 9.5
1.0 7.0 9.5
1.0 7.5 10.0
Ta = –40°C to +85°C
CL = 50 pF
Min
Max
1.0
10.0
ns
1.0
10.0
ns
1.0
9.5
ns
1.0
10.5
ns
1.0
10.5
ns
1.0
10.5
ns
Unit
Capacitance
Item
Input capacitance
Power dissipation capacitance
Symbol
CIN
CPD
Typ
4.5
45.0
Unit
pF
pF
VCC = 5.5 V
VCC = 5.0 V
Condition
Rev.2.00, Jul.16.2004, page 5 of 8