74AHCT374 查看數據表（PDF） - Philips Electronics
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74AHCT374 Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger; 3-state
Product specification
74AHC374;
74AHCT374
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 2
tPHL/tPLH propagation delay see Figs 6, 8
CP to Qn
and 9
15 pF − 4.4
tPZH/tPZL propagation delay see Figs 7 and 9
OE to Qn
− 3.9
tPHZ/tPLZ propagation delay
OE to Qn
− 4.2
fmax
maximum clock see Figs 6 and 9
pulse frequency
130 185
tPHL/tPLH propagation delay see Figs 6, 8
CP to Qn
and 9
50 pF − 5.7
tPZH/tPZL propagation delay see Figs 7 and 9
OE to Qn
− 5.2
tPHZ/tPLZ propagation delay
OE to Qn
− 6.4
tW
clock pulse width see Figs 6 and 9
HIGH or LOW
5.0 −
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
3.0 −
2.0 −
85 120
8.1 1.0 9.5 1.0 10.0
7.6 1.0 9.0 1.0 9.5
6.8 1.0 8.0 1.0 8.5
−
110 −
110 −
10.1 1.0 11.5 1.0 12.5
9.6 1.0 11 1.0 12.0
8.8 1.0 10.0 1.0 11.0
−
5.0 −
5.0 −
−
3.0 −
3.0 −
−
2.0 −
2.0 −
−
75 −
75 −
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ns
MHz
Notes
1. Typical values at VCC = 3.3 V.
2. Typical values at VCC = 5.0 V.
1999 Sep 28
10
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