74HC574_16 查看數據表（PDF） - NXP Semiconductors.
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74HC574_16 Datasheet PDF : 18 Pages
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Nexperia
74HC574; 74HCT574
Octal D-type flip-flop; positive edge-trigger; 3-state
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 9.
Symbol Parameter Conditions
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ Max Min Max
Min
Max
CPD
power
CL = 50 pF; f = 1 MHz;
[5] -
22 -
-
-
-
-
pF
dissipation VI = GND to VCC
capacitance
74HCT574
tpd
propagation CP to Qn; see Figure 6
[1]
delay
VCC = 4.5 V
-
18 33
-
41
-
50 ns
VCC = 5 V; CL = 15 pF
-
15
-
-
-
-
-
ns
ten
enable time OE to Qn; see Figure 8
[2]
VCC = 4.5 V
-
19 33
-
41
-
50 ns
tdis
disable time OE to Qn; see Figure 8
[3]
VCC = 4.5 V
-
16 28
-
35
-
42 ns
tt
transition Qn; see Figure 6
time
VCC = 4.5 V
[4]
-
5 12
-
15
-
18 ns
tW
pulse width CP HIGH or LOW;
see Figure 7
VCC = 4.5 V
16 7
-
20
-
24
-
ns
tsu
set-up time Dn to CP; see Figure 7
VCC = 4.5 V
12 3
-
15
-
18
-
ns
th
hold time Dn to CP; see Figure 7
VCC = 4.5 V
5 1 -
5
-
5
-
ns
fmax
maximum CP; see Figure 6
frequency
VCC = 4.5 V
30 69
-
24
-
20
-
MHz
VCC = 5 V; CL = 15 pF
-
76
-
-
-
-
-
MHz
CPD
power
CL = 50 pF; f = 1 MHz;
[5] -
25 -
-
-
-
-
pF
dissipation VI = GND to VCC 1.5 V
capacitance
[1] tpd is the same as tPLH and tPHL.
[2] ten is the same as tPZH and tPZL.
[3] tdis is the same as tPLZ and tPHZ.
[4] tt is the same as tTHL and tTLH.
[5] CPD is used to determine the dynamic power dissipation (PD in W).
PD = CPD VCC2 fi N + (CL VCC2 fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
(CL VCC2 fo) = sum of outputs.
74HC_HCT574
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 4 March 2016
© Nexperia B.V. 2017. All rights reserved
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