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CD54HC374_07 Datasheet, PDF (6/18 Pages) Texas Instruments – High-Speed CMOS Logic Octal D-Type Flip-Flop, 3-State Positive-Edge Triggered
CD54/74HC374, CD54/74HCT374, CD54/74HC574, CD54/74HCT574
Switching Specifications CL = 50pF, Input tr, tf = 6ns (Continued)
PARAMETER
Output Enable to Q
TEST
SYMBOL CONDITIONS VCC (V) MIN
tPZL, tPZH CL = 50pF
2
-
4.5
-
25oC
TYP MAX
- 150
-
30
-40oC TO
85oC
MIN MAX
-
190
-
38
-55oC TO
125oC
MIN MAX UNITS
-
225 ns
-
45
ns
CL = 15pF
5
-
12
-
-
-
-
-
ns
CL = 50pF
6
-
-
26
-
33
-
38
ns
Maximum Clock Frequency
fMAX
CL = 15pF
5
-
60
-
-
-
-
-
MHz
Output Transition Time
tTHL, tTLH CL = 50pF
2
-
-
60
-
75
-
90
ns
4.5
-
-
12
-
15
-
18
ns
6
-
-
10
-
13
-
15
ns
Input Capacitance
Three-State Output
Capacitance
CI
CL = 50pF
-
10
-
10
-
10
-
10
pF
CO
-
-
20
-
20
-
20
-
20
pF
Power Dissipation Capacitance CPD
CL = 15pF
5
(Notes 3, 4)
-
39
-
-
-
-
-
pF
HCT TYPES
Propagation Delay
Clock to Output
tPHL, tPLH
CL = 50pF
4.5
-
-
33
-
41
-
50
ns
CL = 15pF
5
-
15
-
-
-
-
-
ns
Output Disable to Q
tPLZ, tPHZ CL = 50pF
4.5
-
-
28
-
35
-
42
ns
CL = 15pF
5
-
11
-
-
-
-
-
ns
Output Enable to Q
tPZL, tPZH CL = 50pF
4.5
-
-
30
-
38
-
45
ns
CL = 15pF
5
-
12
-
-
-
-
-
ns
Maximum Clock Frequency
fMAX
CL = 15pF
5
-
60
-
-
-
-
-
MHz
Output Transition Time
tTLH, tTHL CL = 50pF
4.5
-
-
12
-
15
-
18
ns
Input Capacitance
CI
CL = 50pF
-
10
-
10
-
10
-
10
pF
Three-State Output
Capacitance
CO
-
-
20
-
20
-
20
-
20
pF
Power Dissipation Capacitance CPD
CL = 15pF
5
(Notes 3, 4)
-
47
-
-
-
-
-
pF
NOTES:
3. CPD is used to determine the dynamic power consumption, per package.
4. PD = CPD VCC2 fi + ∑ VCC2 fO CL where fi = Input Frequency, fO = Output Frequency, CL = Output Load Capacitance, VCC = Supply
Voltage.
6