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ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Flip-Flop Standard Three-state, Non-inverting SOIC 20
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SN54AHC374, SN74AHC374
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCLS240I – OCTOBER 1995 – REVISED JULY 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54AHC374 SN74AHC374
UNIT
PARAMETER
(INPUT) (OUTPUT) CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
f
C
L
= 15 pF 80* 130* 70* 70
MHz
f
max
C
L
= 50 pF 55 85 50 50
MHz
t
PLH
CLK
Q
C
L
=15
p
F
8.1* 12.7* 1* 15* 1 15
ns
t
PHL
CLK
Q
C
L
=
15
pF
8.1* 12.7* 1* 15* 1 15
ns
t
PZH
OE
Q
C
L
=15
p
F
7.1* 11* 1* 13* 1 13
ns
t
PZL
OE
Q
C
L
=
15
pF
7.1* 11* 1* 13* 1 13
ns
t
PHZ
OE
Q
C
L
=15
p
F
7.5* 10.5* 1* 12.5* 1 12.5
ns
t
PLZ
OE
Q
C
L
=
15
pF
7.5* 10.5* 1* 12.5* 1 12.5
ns
t
PLH
CLK
Q
C
L
=50
p
F
10.6 16.2 1 18.5 1 18.5
ns
t
PHL
CLK
Q
C
L
=
50
pF
10.6 16.2 1 18.5 1 18.5
ns
t
PZH
OE
Q
C
L
=50
p
F
9.6 14.5 1 16.5 1 16.5
ns
t
PZL
OE
Q
C
L
=
50
pF
9.6 14.5 1 16.5 1 16.5
ns
t
PHZ
OE
Q
C
L
=50
p
F
10.2 14 1 16 1 16
ns
t
PLZ
OE
Q
C
L
=
50
pF
10.2 14 1 16 1 16
ns
t
sk(o)
C
L
= 50 pF 1.5** 1.5 ns
∗
On products compliant to MIL-PRF-38535, this parameter is not production tested.
∗∗
On products compliant to MIL-PRF-38535, this parameter does not apply.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54AHC374 SN74AHC374
UNIT
PARAMETER
(INPUT) (OUTPUT) CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
f
C
L
= 15 pF 130* 185* 110* 110
MHz
f
max
C
L
= 50 pF 85 120 75 75
MHz
t
PLH
CLK
Q
C
L
=15
p
F
5.4* 8.1* 1* 9.5* 1 9.5
ns
t
PHL
CLK
Q
C
L
=
15
pF
5.4* 8.1* 1* 9.5* 1 9.5
ns
t
PZH
OE
Q
C
L
=15
p
F
5.1* 7.6* 1* 9* 1 9
ns
t
PZL
OE
Q
C
L
=
15
pF
5.1* 7.6* 1* 9* 1 9
ns
t
PHZ
OE
Q
C
L
=15
p
F
4.6* 6.8* 1* 8* 1 8
ns
t
PLZ
OE
Q
C
L
=
15
pF
4.6* 6.8* 1* 8* 1 8
ns
t
PLH
CLK
Q
C
L
=50
p
F
6.9 10.1 1 11.5 1 11.5
ns
t
PHL
CLK
Q
C
L
=
50
pF
6.9 10.1 1 11.5 1 11.5
ns
t
PZH
OE
Q
C
L
=50
p
F
6.6 9.6 1 11 1 11
ns
t
PZL
OE
Q
C
L
=
50
pF
6.6 9.6 1 11 1 11
ns
t
PHZ
OE
Q
C
L
=50
p
F
6.1 8.8 1 10 1 10
ns
t
PLZ
OE
Q
C
L
=
50
pF
6.1 8.8 1 10 1 10
ns
t
sk(o)
C
L
= 50 pF 1** 1 ns
∗
On products compliant to MIL-PRF-38535, this parameter is not production tested.
∗∗
On products compliant to MIL-PRF-38535, this parameter does not apply.