TC74AC390F Просмотр технического описания (PDF) - Toshiba
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TC74AC390F Datasheet PDF : 10 Pages
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TC74AC390P/F/FN
AC Characteristics (CL = 50 pF, RL = 500 Ω, input: tr = tf = 3 ns)
Characteristics
Propagation delay
time
( CKA -QA)
Propagation delay
time
( CKA -QC)
Propagation delay
time
( CKB -QB, QD)
Propagation delay
time
( CKB -QC)
Propagation delay
time
(CLR-Qn)
Maximum clock
frequency
( CKA )
Maximum clock
frequency
( CKB )
Input capacitance
Power dissipation
capacitance
Symbol
tpLH
tpHL
Test Condition
VCC (V)
3.3 ± 0.3
⎯
5.0 ± 0.5
Ta = 25°C
Min Typ. Max
⎯
8.2 14.0
⎯
5.5
8.4
tpLH
3.3 ± 0.3 ⎯ 17.0 30.0
QA connected to CKB
tpHL
5.0 ± 0.5 ⎯ 10.5 17.5
tpLH
3.3 ± 0.3 ⎯
8.8 14.9
⎯
tpHL
5.0 ± 0.5 ⎯
6.0
9.4
tpLH
3.3 ± 0.3 ⎯ 11.0 18.8
⎯
tpHL
5.0 ± 0.5 ⎯
7.1 11.3
3.3 ± 0.3 ⎯
7.7 12.5
tpHL
⎯
5.0 ± 0.5 ⎯
5.7
8.5
3.3 ± 0.3 60
120
⎯
fmax
⎯
5.0 ± 0.5 100 180
⎯
fmax
CIN
CPD
(Note)
⎯
⎯
⎯
3.3 ± 0.3 45
90
⎯
5.0 ± 0.5 90
140
⎯
⎯
5
10
⎯
40
⎯
Ta = −40 to
85°C
Unit
Min Max
1.0 16.0
ns
1.0 9.6
1.0 34.0
ns
1.0 20.0
1.0 17.0
ns
1.0 10.7
1.0 21.5
ns
1.0 12.8
1.0 14.3
ns
1.0 9.7
60
⎯
MHz
100 ⎯
45
⎯
MHz
90
⎯
⎯
10
pF
⎯
⎯
pF
Note:
CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
ICC (opr) = CPD･VCC･fIN + ICC/2 (per counter)
6
2007-10-01
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