Datasheet
SN54F373, SN74F373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDFS076A – D2932, MARCH 1987 – REVISED OCTOBER 1993
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54F373 SN74F373
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP
†
MAX MIN TYP
†
MAX
UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 –1.2 V
V
CC
=45V
I
OH
= – 1 mA 2.5 3.4 2.5 3.4
V
OH
V
CC
=
4
.
5
V
I
OH
= – 3 mA 2.4 3.3 2.4 3.3 V
V
CC
= 4.75 V, I
OH
= – 1 mA to –3 mA 2.7
V
OL
V
CC
=45V
I
OL
= 20 mA 0.3 0.5
V
V
OL
V
CC
=
4
.
5
V
I
OL
= 24 mA 0.35 0.5
V
I
OZH
V
CC
= 5.5 V, V
O
= 2.7 V 50 50 µA
I
OZL
V
CC
= 5.5 V, V
O
= 0.5 V –50 –50 µA
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 20 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.5 V – 0.6 – 0.6 mA
I
OS
‡
V
CC
= 5.5 V, V
O
= 0 –60 –150 –60 –150 mA
I
CCZ
V
CC
= 5.5 V, See Note 2 38 55 38 55 mA
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
‡
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
NOTE 2: I
CCZ
is measured with OE
at 4.5 V and all other inputs grounded.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
V
CC
= 5 V,
T
A
= 25°C
SN54F373 SN74F373
UNIT
′F373
UNIT
MIN MAX MIN MAX MIN MAX
t
w
Pulse duration, LE high 6 6 6 ns
t
su
Setup time, data before LE↓
2 2 2 ns
t
h
Hold time, data after LE↓ 3 3 3 ns
switching characteristics (see Note 3)
PARAMETER
FROM
(
INPUT
)
TO
(
OUTPUT
)
V
CC
= 5 V,
C
L
= 50 pF,
R
L
= 500 Ω,
T
A
= 25°C
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R
L
= 500Ω,
T
A
= MIN to MAX
§
UNIT
(INPUT)
(OUTPUT)
′F373 SN54F373 SN74F373
MIN TYP MAX MIN MAX MIN MAX
t
PLH
D
Q
2.2 4.9 7 2.2 8.5 2.2 8
ns
t
PHL
D
Q
1.2 3.3 5 1.2 7 1.2 6
ns
t
PLH
LE
Q
4.2 8.6 11.5 4.2 15 4.2 13
ns
t
PHL
LE
Q
2.2 4.8 7 2.2 8.5 2.2 8
ns
t
PZH
OE
Q
1.2 4.6 11 1.2 13.5 1.2 12
ns
t
PZL
OE
Q
1.2 5.2 7.5 1.2 10 1.2 8.5
ns
t
PHZ
OE
Q
1.2 4.1 6.5 1.2 10 1.2 7.5
ns
t
PLZ
OE
Q
1.2 3.4 6 1.2 7 1.2 6
ns
§
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 3: Load circuits and waveforms are shown in Section 1.