Datasheet

CD54HCT373, CD74HCT373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS453B – FEBRUARY 2001 – REVISED MAY 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
T
A
= 25°C
T
A
= –55°C
TO 125°C
T
A
= –40°C
TO 85°C
UNIT
MIN MAX MIN MAX MIN MAX
V
CC
Supply voltage 4.5 5.5 4.5 5.5 4.5 5.5 V
V
IH
High-level input voltage 2 2 2 V
V
IL
Low-level input voltage 0.8 0.8 0.8 V
V
I
Input voltage V
CC
V
CC
V
CC
V
V
O
Output voltage V
CC
V
CC
V
CC
V
∆t/∆v Input transition rise or fall rate 500 500 500 ns
NOTE 3: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS V
CC
T
A
= 25°C
T
A
= –55°C
TO 125°C
T
A
= –40°C
TO 85°C
UNIT
CC
MIN MAX MIN MAX MIN MAX
V
OH
V
I
=V
IH
or V
IL
I
OH
= –20 µA
45V
4.4 4.4 4.4
V
V
OH
V
I
=
V
IH
or
V
IL
I
OH
= –6 mA
4
.
5
V
3.98 3.7 3.84
V
V
OL
V
I
=V
IH
or V
IL
I
OL
= 20 µA
45V
0.1 0.1 0.1
V
V
OL
V
I
=
V
IH
or
V
IL
I
OL
= 6 mA
4
.
5
V
0.26 0.4 0.33
V
I
I
V
I
= V
CC
or 0 5.5 V ±0.1 ±1 ±1 µA
I
OZ
V
O
= V
CC
or 0 5.5 V ±0.5 ±10 ±5 µA
I
CC
V
I
= V
CC
or 0, I
O
= 0 5.5 V 8 160 80 µA
∆I
CC
‡
One input at V
CC
– 2.1 V, Other inputs at 0 or V
CC
4.5 V to
5.5 V
360 490 450 µA
C
i
10 10 10 pF
C
o
10 10 10 pF
‡
Additional quiescent supply current per input pin, TTL inputs high, 1 unit load. For dual-supply systems, theoretical worst-case
(V
I
= 2.4 V, V
CC
= 5.5 V) specification is 1.8 mA.
HCT INPUT LOADING TABLE
INPUT
UNIT LOAD
OE
1.5
Any D 0.4
LE
1
Unit load is ∆I
CC
limit
specified in electrical
characteristics table (e.g.,
360 µA max at 25°C).