Datasheet

SN54AHCT74
SN74AHCT74
SCLS263O –OCTOBER 1995–REVISED JUNE 2013 www.ti.com
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
T
A
= –40°C TO
T
A
= –55°C TO T
A
= –40°C TO
125°C
125°C 85°C
T
A
= 25°C
FROM TO LOAD
Recommended
PARAMETER UNIT
(INPUT) (OUTPUT) CAPACITANCE
SN54AHCT74 SN54AHCT74 SN54AHCT74
MIN TYP MAX MIN MAX MIN MAX MIN MAX
C
L
= 15 pF 100
(1)
160
(1)
90 80 80
f
max
ns
C
L
= 50pF 80 140 65 65 65
t
PLH
7.6
(1)
10.4
(1)
1
(1)
12
(1)
1 12 1 12
PRE or CLR Q or Q C
L
= 15 pF ns
t
PHL
7.6
(1)
10.4
(1)
1
(1)
12
(1)
1 12 1 12
t
PLH
5.8
(1)
7.8
(1)
1
(1)
9
(1)
1 9 1 9.0
CLK Q or Q C
L
= 15 pF ns
t
PHL
5.8
(1)
7.8
(1)
1
(1)
9
(1)
1 9 1 9.0
t
PLH
8.1 11.4 1 13 1 13 1 13
PRE or CLR Q or Q C
L
= 50 pF ns
t
PHL
8.1 11.4 1 13 1 13 1 13
t
PLH
6.3 8.8 1 10 1 10 1 10
CLK Q or Q C
L
= 50 pF ns
t
PHL
6.3 8.8 1 10 1 10 1 10
(1) On products compliant to MIL-PRF-38535, this parameter is not production tested.
NOISE CHARACTERISTICS
V
CC
= 5 V, C
L
= 50 pF, T
A
= 25°C
(1)
SN54AHCT74 UNIT
PARAMETER
MIN MAX
V
OL(P)
Quiet output, maximum dynamic V
OL
0.8 V
V
OL(V)
Quiet output, minimum dynamic V
OL
–0.8 V
V
OH(V)
Quiet output, minimum dynamic V
OH
4 V
V
IH(D)
High-level dynamic input voltage 2 V
V
IL(D)
Low-level dynamic input voltage 0.8 V
(1) Characteristics are for surface-mount packages only.
OPERATING CHARACTERISTICS
V
CC
= 5 V, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance No load, f = 1 MHz 32 pF
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