TECHNICAL DATA
Octal d-type latch with three state outputs
IN74VHC373 integrated circuits are designed for using in
up-to-date high-performance computers, high-level
electronic equipment for consumer application.
IN74VHC373 is identical in pinout to the IC series
IN74HC373A,
IN74HCT373A,
IN74AC373A,
IN74ACT373A.
Input voltage levels are compatible with standard C-MOS
levels.
Output voltage levels are compatible with input levels of
C-MOS, N-MOS and TTL ICs.
IN74VHC373
ORDERING INFORMATION
IN74VHC373N Plastic
IN74VHC373DW SOIC
T
A
= -40° to 85° C for all packages
Features:
•
Supply voltage 2.0 - 5.5 V.
•
Low input current: 1.0 mkA; 0.1 mkA at
Т
= 25
°С.
•
Output current 8 mA.
•
Latchup current not less than 300 mA at
Т
= 85
°С.
•
Tolerable value of static potential not less than 2000V as per human body model
(HBM) and not less than 200V as per machine model (ММ).
.
1
IN74VHC373
IN74VHC373 truth table
Input
Output
A
L
H
X
Y
L
H
Z
G
L
L
H
Note –
H - high voltage level;
L - low voltage level;
X - any voltage level (low or high);
Z - output in third state
Pins description in IN74VHC373
Pinout
OE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
01
02
03
04
05
06
07
08
09
20
19
18
17
16
15
14
13
12
11
Pin No.
01
Symbol
OE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
LE
Q4
D4
D5
Q5
Q6
D6
D7
Q7
Vcc
Description
Input OUTPUT ENABLE
Data output
Data input
Data input
Data output
Data output
Data input
Data input
Data output
Common output
Recording enable input
Data output
Data input
Data input
Data output
Data output
Data input
Data input
Data output
Supply output from voltage source
V
CC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
LE
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
GND
10
2
IN74VHC373
Absolute maximum conditions*
Parameter, unit
Supply voltage, V
Input voltage, V
Output voltage, V
Input diode current, mA
Current of common output and supply
output, mA
Output current, mA
Output diode current, mA
Dissipated power, mW
Symbol
min
V
CC
Vin
Vout
Iik
Icc
Iout
Iok
Pd
-0.5
-0.5
-0.5
–
–
–
–
–
Value
max
7.0
7.0
Vcc+0.5V
-20
±
75
±
25
±
20
180
*Under absolute maximum conditions operation of microcircuit is not guaranteed. Operation is
guaranteed under maximum conditions
Maximum conditions
Parameter, unit
Symbol
min
Supply voltage, V
Input voltage,V
Output voltage, V
Output current, mA
Input rise and fall time, ns/V
at Vcc = (3.3 ± 0.3) V
at Vcc = (5.0 ± 0.5) V
V
CC
Vin
Vout
Iout
t
LH
, t
HL
2.0
0
0
–
0
0
Value
max
5.5
V
CC
V
CC
±
8.0
100
20
3
IN74VHC373
DC electrical characteristics
Value
Symbo
l
V
IH
Parameter
High input voltage
Test conditions
–
V
CC
,
V
2.0
25
°C
min
1.5
max
–
–
0.5
0.3Vcc
–
–
–
–
–
–
0.09
0.09
0.09
0.09
0.36
0.36
±0.25
±0.1
4.0
–40
to 85
°C
min
max
1.5
–
0.7Vcc
–
–
1.9
2.9
4.4
5.4
2.48
3.80
–
–
–
–
–
–
-
-
-
–
0.5
0.3Vcc
–
–
–
–
–
–
0.1
0.1
0.1
0.1
0.44
0.44
±2.5
±1.0
40.0
uA
Unit
V
3.0-5.5 0.7Vcc
V
IL
V
OH
Low input voltage
–
2.0
–
–
1.92
2.92
4.42
5.52
2.58
3.94
–
–
–
–
–
–
-
-
-
V
OL
I
OZ
I
I
I
CC
3.0-5.5
High output voltage V
I
= V
IH
or V
IL
2.0
I
O
= -50 mkA
3.0
4.5
5.5
V
I
= V
IH
or V
IL
;
3.0
I
O
= -4 mA
V
I
= V
IH
or V
IL
;
4.5
I
O
= -8 mA
Low output voltage V
I
= V
IH
orV
IL
2.0
I
O
= 50 mkA
3.0
4.5
5.5
V
I
= V
IH
or V
IL
3.0
I
O
= 4 mA
V
I
= V
IH
or V
IL
4.5
I
O
= 8 mA
Output current in V
I
= V
IH
or V
IL
5.5
V
O
= V
CC
or 0V
"off" state
Input current
V
I
= 5.5V or 0V
0 – 5.5
Consumption current V
I
=V
CC
or 0V 5.5
Noise characteristics
(C
L
= 50 pF)
Parameter
Symbol
V
OLP
V
OLV
V
IHD
V
ILD
V
CC
, V
Positive noise of low output voltage
5.0
Negative noise of low output 5.0
voltage
Input dynamic high voltage
Input dynamic low voltage
5.0
5.0
min
-
-0.9
3.5
-
Value
max
0.9
-
-
1.5
Unit
V
4
IN74VHC373
AC electrical characteristics
(t
LH
= t
HL
= 3.0 ns, R
L
= 1 kOhm)
Test
conditi V
CC
, V
ons
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
t
PHZ
, t
PLZ
Propagation delay time Fig.2
under transition from
high, low level into «off»
state
t
PZH
, t
PZL
Propagation delay time Fig.2
under transition from
«off» state into high, low
level
t
SU
Time of setting signal D Fig.3
relativey to LE
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
t
H
Retention time, D signal Fig.3
to LE
3.3 ± 0.3
5.0 ± 0.5
t
W
Pulse duration
signal
of
LE Fig.3
3.3 ± 0.3
5.0 ± 0.5
t
OSLH
, t
OSHL
Propagation
difference
outputs
delays
between
–
3.3 ± 0.3
5.5 ± 0.5
C
L
,
pF
15
50
15
50
15
50
15
50
50
50
15
50
15
50
15
50
15
50
15
50
15
50
15
50
15
50
50
50
Value
-40°C to
25°C
85°C
min max min max
–
11.0
–
13.0
–
14.5
–
16.5
–
7.2
–
8.5
–
9.2
–
10.5
–
11.4
–
13.5
–
14.9
–
17.0
–
7.2
–
8.5
–
9.2
–
10.5
–
13.2
–
15.0
–
–
–
–
–
4.0
4.0
4.0
4.0
1.0
1.0
1.0
1.0
5.0
5.0
5.0
5.0
–
–
9.2
11.4
14.9
8.1
10.1
–
–
–
–
–
–
–
–
–
–
–
–
1.5
1.0
–
–
–
–
–
4.0
4.0
4.0
4.0
1.0
1.0
1.0
1.0
5.0
5.0
5.0
5.0
–
–
10.5
13.5
17.0
9.5
11.5
–
–
–
–
–
–
–
–
–
–
–
–
1.5
1.0
Symbol
t
PHL
, t
PLH
Parameter
Unit
ns
Popagation delay time Fig. 1
when switching «on»,
«off» from input LE to
output Q
From input D to output Q
Capacitance characteristics
Symbol
C
I
C
O
C
РD
Parameter
Input capacity
Output capacity
Dynamic capacity
Test conditions
-
-
V
I
= 0 V orV
CC
V
CC
, V
5.0
5.0
5.0
Value
25
°C
min
max
10
12
54
Unit
pF
pF
pF
5
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