74AHC374D 데이터 시트보기 (PDF) - Philips Electronics
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74AHC374D Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger; 3-state
Product specification
74AHC374;
74AHCT374
Type 74AHCT374
GND = 0 V; tr = tf ≤ 3.0 ns.
SYMBOL PARAMETER
TEST CONDITIONS
WAVEFORMS CL
Tamb (°C)
25
−40 to +85 −40 to +125 UNIT
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VCC = 4.5 to 5.5 V; note 1
tPHL/tPLH propagation delay see Figs 6, 8
CP to Qn
and 9
15 pF −
4.3 9.4 1.0 10.5 1.0 12.0 ns
tPZH/tPZL propagation delay see Figs 7 and 9
OE to Qn
− 3.5 10.2 1.0 11.5 1.0 13.0 ns
tPHZ/tPLZ propagation delay
OE to Qn
− 3.6 10.2 1.0 11.0 1.0 13.0 ns
fmax
maximum clock see Figs 6 and 9
pulse frequency
90 140 −
80 −
80 −
MHz
tPHL/tPLH propagation delay see Figs 6, 8
50 pF −
5.6
CP to Qn
and 9
tPZH/tPZL propagation delay see Figs 7 and 9
OE to Qn
− 4.8
tPHZ/tPLZ propagation delay
OE to Qn
− 5.7
tW
clock pulse width see Figs 6 and 9
HIGH or LOW
6.5 −
10.4 1.0 11.5 1.0 13.0 ns
11.2 1.0 12.5 1.0 14.0 ns
11.2 1.0 12.0 1.0 14.0 ns
−
6.5 −
6.5 −
ns
tsu
set-up time
see Figs 8 and 9
Dn to CP
th
hold time
Dn to CP
fmax
maximum clock see Figs 6 and 9
pulse frequency
2.5 −
−
2.5 −
−
85 130 −
2.5 −
2.5 −
75 −
2.5 −
2.5 −
75 −
ns
ns
MHz
Note
1. Typical values at VCC = 5.0 V.
1999 Sep 28
11
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