MC74HCT4094A
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7
AC CHARACTERISTICS (tf = tr = 6 ns, CL = 50 pF)
Symbol
Parameter
Test Conditions
VCC (V)
Guaranteed Limits
Unit
555C to 255C
≤ 855C
≤ 1255C
tPHL, tPLH Maximum Propagation Delay
CP to QS1
4.5
30
38
45
ns
tPHL, tPLH Maximum Propagation Delay
CP to QS2
4.5
27
34
41
ns
tPHL, tPLH Maximum Propagation Delay
CP to QPn
4.5
39
49
59
ns
tPHL, tPLH Maximum Propagation Delay
STR to QPn
4.5
36
45
54
ns
tPZH, tPZL Maximum 3State Output Enable Time
OE to QPn
4.5
35
44
53
ns
tPHZ, tPLZ Maximum 3State Output Enable Time
OE to QPn
4.5
25
31
38
ns
tTHL, tTLH Maximum Output Transition Time
4.5
18
22
25
ns
tW
Minimum Clock Pulse Width
High or Low
4.5
16
20
24
ns
tW
Minimum Strobe Pulse Width
High
4.5
16
20
24
ns
tSU
Minimum Setup Time
D to CP
4.5
10
13
15
ns
tSU
Minimum Setup Time
CP to STR
4.5
20
25
30
ns
th
Minimum Hold Time
D to CP
4.5
3
ns
th
Minimum Hold Time
CP to STR
4.5
0
ns
fMAX
Minimum Clock Pulse Frequency
4.5
30
24
20
MHz
Cin
Maximum Input Capacitance
10
pF
Cout
Maximum Output Capacitance
15
pF
CPD
Power Dissipation Capacitance (Note
2)140
pF
2. CPD is defined as the value of the IC’s equivalent capacitance from which the operating current can be calculated from:
ICC(operating) ≈ CPD x VCC x fIN x NSW where NSW = total number of outputs switching and fIN = switching frequency.