Datasheet
SN54AHC373, SN74AHC373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS235I – OCTOBER 1995 – REVISED JULY 2003
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, V
CC
= 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54AHC373 SN74AHC373
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration, LE high 5 5 5 ns
t
su
Setup time, data before LE↓
4 4 4 ns
t
h
Hold time, data after LE↓ 1 1 1 ns
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54AHC373 SN74AHC373
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration, LE high 5 5 5 ns
t
su
Setup time, data before LE↓
4 4 4 ns
t
h
Hold time, data after LE↓ 1 1 1 ns
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 SN54AHC373 SN74AHC373
UNIT
PARAMETER
(INPUT) (OUTPUT) CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
D
Q
C
L
=15
p
F
7.3* 11.4* 1* 13.5* 1 13.5
ns
t
PHL
D
Q
C
L
=
15
pF
7.3* 11.4* 1* 13.5* 1 13.5
ns
t
PLH
LE
Q
C
L
=15
p
F
7* 11* 1* 13* 1 13
ns
t
PHL
LE
Q
C
L
=
15
pF
7* 11* 1* 13* 1 13
ns
t
PZH
OE
Q
C
L
=15
p
F
7.3* 11.4* 1* 13.5* 1 13.5
ns
t
PZL
OE
Q
C
L
=
15
pF
7.3* 11.4* 1* 13.5* 1 13.5
ns
t
PHZ
OE
Q
C
L
=15
p
F
7* 10* 1* 12* 1 12
ns
t
PLZ
OE
Q
C
L
=
15
pF
7* 10* 1* 12* 1 12
ns
t
PLH
D
Q
C
L
=50
p
F
9.8 14.9 1 17 1 17
ns
t
PHL
D
Q
C
L
=
50
pF
9.8 14.9 1 17 1 17
ns
t
PLH
LE
Q
C
L
=50
p
F
9.5 14.5 1 16.5 1 16.5
ns
t
PHL
LE
Q
C
L
=
50
pF
9.5 14.5 1 16.5 1 16.5
ns
t
PZH
OE
Q
C
L
=50
p
F
9.8 14.9 1 17 1 17
ns
t
PZL
OE
Q
C
L
=
50
pF
9.8 14.9 1 17 1 17
ns
t
PHZ
OE
Q
C
L
=50
p
F
9.5 13.2 1 15 1 15
ns
t
PLZ
OE
Q
C
L
=
50
pF
9.5 13.2 1 15 1 15
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.