Datasheet
SN54AC373, SN74AC373
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS540D − OCTOBER 1995 − REVISED OCTOBER 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 SN54AC373 SN74AC373
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration, LE high 5.5 6.5 6 ns
t
su
Setup time, data before LE↓ 5.5 6.5 6 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 SN54AC373 SN74AC373
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration, LE high 4 5 4.5 ns
t
su
Setup time, data before LE↓ 4 5 4.5 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
TO TO
T
A
= 25°C SN54AC373 SN74AC373
UNIT
PARAMETER
TO
(INPUT)
TO
(OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
D
Q
1.5 10 13.5 1 16.5 1.5 15
ns
t
PHL
D Q
1.5 9.5 13.0 1 16 1.5 14.5
ns
t
PLH
LE
Q
1.5 10 13.5 1 16.5 1.5 15
ns
t
PHL
LE Q
1.5 9.5 12.5 1 15 1.5 14
ns
t
PZH
OE
Q
1.5 9 11.5 1 14 1 13
ns
t
PZL
OE
Q
1.5 8.5 11.5 1 13.5 1 13
ns
t
PHZ
OE
Q
1.5 10 12.5 1 16 1 14.5
ns
t
PLZ
OE
Q
1.5 8 11.5 1 13 1 12.5
ns
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
TO TO
T
A
= 25°C SN54AC373 SN74AC373
UNIT
PARAMETER
TO
(INPUT)
TO
(OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
D
Q
1.5 7 9.5 1 11.5 1.5 10.5
ns
t
PHL
D Q
1.5 7 9.5 1 11.5 1.5 10.5
ns
t
PLH
LE
Q
1.5 7.5 9.5 1 12 1.5 10.5
ns
t
PHL
LE Q
1.5 7 9.5 1 11 1.5 10.5
ns
t
PZH
OE
Q
1.5 7 8.5 1 10.5 1 9.5
ns
t
PZL
OE
Q
1.5 6.5 8.5 1 10 1 9.5
ns
t
PHZ
OE
Q
1.5 8 11 1 13.5 1 12.5
ns
t
PLZ
OE
Q
1.5 6.5 8.5 1 10.5 1 10
ns
operating characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance C
L
= 50 pF, f = 1 MHz 40 pF