74AHC574 查看數據表（PDF） - Philips Electronics
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74AHC574 Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger; 3-state
Product specification
74AHC574;
74AHCT574
Type 74AHCT574
GND = 0 V; tr = tf ≤ 3.0 ns.
TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
WAVEFORMS CL
+25
−40 to +85 −40 to +125 UNIT
VCC (V)
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
tPHL/tPLH
tPZH/tPZL
tPHZ/tPLZ
tPHL/tPLH
tPZH/tPZL
tPHZ/tPLZ
tW
tsu
th
fmax
propagation
delay
CP to Qn
3-state output
enable time
OE to Qn
3-state output
disable time
OE to Qn
propagation
delay
CP to Qn
3-state output
enable time
OE to Qn
3-state output
disable time
OE to Qn
clock pulse
width
HIGH or LOW
see Figs 6
and 9
see Figs 7
and 9
see Figs 6
and 9
see Figs 7
and 9
see Figs 6
and 9
setup time
Dn to CP
hold time
Dn to CP
maximum
clock pulse
frequency
see Figs 8
and 9
see Figs 6
and 9
15 pF 4.5 to 5.5 − 4.4(1) 8.6 1.0 10.0 1.0 11.0 ns
− 4.3(1) 9.0 1.0 10.5 1.0 11.5 ns
− 4.3(1) 9.0 1.0 10.5 1.0 11.5 ns
50 pF
− 6.3(1) 10.6 1.0 12.0 1.0 13.5 ns
− 6.1(1) 11.0 1.0 12.5 1.0 14.0 ns
− 6.2(1) 10.1 1.0 11.5 1.0 13.0 ns
5.0 −
−
5.5 −
5.5 −
ns
15 pF
3.0 −
−
1.5 −
−
85 115 −
130 180 −
3.5 −
1.5 −
75 −
110 −
3.5 −
1.5 −
75 −
110 −
ns
ns
MHz
MHz
Note
1. Typical values at VCC = 5.0 V.
1999 Jun 16
11
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