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HD74LS107A Datasheet, PDF (5/7 Pages) Hitachi Semiconductor – Dual J-K Negative-edge-triggered Flip-Flops(with Clear)
HD74LS107A
Waveforms 1
Clock
Q
10%
tTLH
tTHL
90% 90%
tw(L)
1.3 V 1.3 V
10%
tw(H)
tPLH
1.3 V 1.3 V
tPHL
1.3 V
tPHL
1.3 V
tPLH
3V
0V
VOH
VOL
Q
1.3 V
Note: Clock input pulse: tTLH ≤ 15 ns, tTHL ≤ 6 ns, PRR = 1 MHz,
duty cycle = 50% and: for fmax, tTHL tTHL ≤ 2.5 ns.
1.3 V
VOH
VOL
Waveforms 2
Clear
Clock
Q
tTHL
tTLH
90%
1.3V
10%
tw (CLR)
90%
1.3V
10%
tPHL
1.3V
tPLH
3V
0V
tTLH
tTHL
10%
90% 90%
1.3V 1.3V
tw (CK) ≥ 20ns
3V
10%
0V
VOH
VOL
VOH
1.3V
Q
VOL
Note: Clear and clock input pulse: tTLH ≤ 15 ns, tTHL ≤ 6 ns, PRR = 1 MHz.
Rev.3.00, Jul.13.2005, page 5 of 6