HD74HC375
Quad. Bistable Latches
Description
This latch is ideally suited for use as temporary storage for binary information between processing units
and input/output or indicator units. Information present at a data (D) input is transferred to the Q output
when the enable (G) is high and the Q output will follow the data input as long as the enable remains high.
When the enable goes low, the information (that was present at the data input at the time the transition
occurred) is retained at the Q output until the enable goes high.
Features
•
•
•
•
•
High Speed Operation: t
pd
(Data to Q,
Q)
= 10 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: I
CC
(static) = 4 µA max (Ta = 25°C)
Function Table
Inputs
D
L
H
X
G
H
H
L
Outputs
Q
L
H
no change
Q
H
L
no change
HD74HC375
Pin Arrangement
1D 1
1Q 2
1Q 3
Enable
1 to 2 4
2Q 5
2Q 6
2D 7
GND 8
(Top view)
Q C
Q
D
C Q
D
Q
Q
D
Q C
D
Q
C Q
16 V
CC
15 4D
14 4Q
13 4Q
12
Enable
3 to 4
11 3Q
10 3Q
9
3D
2
HD74HC375
DC Characteristics
Ta = 25°C
Item
Input voltage
Symbol
V
IH
Ta = –40 to
+85°C
Max
—
—
—
0.5
1.35
1.8
—
—
—
—
—
0.1
0.1
0.1
0.33
0.33
±1.0
40
µA
µA
I
OL
= 4 mA
I
OL
= 5.2 mA
Vin = V
CC
or GND
Vin = V
CC
or GND, Iout = 0
µA
V
I
OH
= –4 mA
I
OH
= –5.2 mA
Vin = V
IH
or V
IL
I
OL
= 20
µA
V
Vin = V
IH
or V
IL
I
OH
= –20
µA
V
Unit
V
Test Conditions
V
CC
(V) Min Typ Max Min
2.0
4.5
6.0
1.5 —
3.15 —
4.2 —
—
—
—
—
—
—
—
—
—
0.5
1.5
3.15
4.2
—
V
IL
2.0
4.5
6.0
1.35 —
1.8
—
1.9
4.4
5.9
4.13
5.63
—
—
—
Output voltage
V
OH
2.0
4.5
6.0
4.5
6.0
1.9 2.0 —
4.4 4.5 —
5.9 6.0 —
4.18 —
5.68 —
—
—
—
—
—
—
—
—
—
V
OL
2.0
4.5
6.0
4.5
6.0
0.0 0.1
0.0 0.1
0.0 0.1
—
—
—
—
0.26 —
0.26 —
±0.1
—
4.0
—
Input current
Quiescent supply
current
Iin
I
CC
6.0
6.0
3
HD74HC375
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25°C
Item
Symbol
Ta = –40 to
+85°C
Max
180
36
31
200
40
34
—
—
—
—
—
—
—
—
—
95
19
16
10
pF
ns
ns
ns
ns
ns
G to Q or
Q
Unit
ns
Test Conditions
Data to Q or
Q
V
CC
(V) Min Typ Max Min
2.0
4.5
6.0
—
—
—
—
—
—
80
16
14
—
10
—
—
11
—
—
5
—
145 —
29
25
—
—
Propagation delay t
PLH
time
t
PHL
t
PLH
t
PHL
2.0
4.5
6.0
160 —
32
27
—
—
—
—
—
—
—
—
—
75
15
13
10
—
—
100
20
17
125
25
21
5
5
5
—
—
—
—
Pulse width
t
w
2.0
4.5
6.0
Setup time
t
su
2.0
4.5
6.0
100 —
20
17
5
5
5
—
—
—
—
2
—
—
–1
—
—
5
—
5
Hold time
t
h
2.0
4.5
6.0
Output rise/fall
time
t
TLH
t
THL
2.0
4.5
6.0
Input capacitance
Cin
—
4
19.20
20.00 Max
16
9
7.40 Max
6.30
Unit: mm
1
1.3
1.11 Max
8
0.51 Min
2.54 Min 5.06 Max
7.62
2.54
±
0.25
0.48
±
0.10
0.25
– 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
+ 0.13
DP-16
Conforms
Conforms
1.07 g
