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Motorola Electronic Components Datasheet

SN74LS375 Datasheet

4-BIT D LATCH

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4-BIT D LATCH
The SN54/ 74LS375 is a 4-Bit D-Type Latch for use as temporary storage
for binary information between processing limits and input /output or indicator
units. When the Enable (E) is HIGH, information present at the D input will be
transferred to the Q output and, if E is HIGH, the Q output will follow the input.
When E goes LOW, the information present at the D input prior to its setup time
will be retained at the Q outputs.
VCC
16
CONNECTION DIAGRAM DIP (TOP VIEW)
D3
Q3
Q3
E2,3
Q2
Q2
D2
15
14
13
12
11
10
9
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
1
D0
2
Q0
3
Q0
4
E0,1
5
Q1
6
Q1
7
D1
8
GND
TRUTH TABLE
(Each latch)
tn tn+1
DQ
HH
LL
NOTES:
tn = bit time before enable
negative-going transition.
tn+1 = bit time after enable
negative-going transition.
PIN NAMES
LOADING (Note a)
HIGH
LOW
D1 – D4
Data Inputs
0.5 U.L.
0.25 U.L.
E0 – 1
E2 – 3
Q1 – Q4
Q1 – Q4
Enable Input Latches 0, 1
Enable Input Latches 2, 3
Latch Outputs (Note b)
Complimentary Latch Outputs (Note b)
2.0 U.L.
2.0 U.L.
10 U.L.
10 U.L.
1.0 U.L.
1.0 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 25 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
DATA
LOGIC DIAGRAM
ENABLE
TO OTHER LATCH
Q
Q
SN54/74LS375
4-BIT D LATCH
LOW POWER SCHOTTKY
16
1
16
1
16
1
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
LOGIC SYMBOL
17
9
15
4
12
E0,1
D0
D1
E2,3
Q0
Q1
D2
Q2
D3
Q3
23
6 5 10 11 14 13
VCC = PIN 16
GND = PIN 8
FAST AND LS TTL DATA
5-528


Motorola Electronic Components Datasheet

SN74LS375 Datasheet

4-BIT D LATCH

No Preview Available !

SN54 / 74LS375
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
54
VIL Input LOW Voltage
74
0.7 Guaranteed Input LOW Voltage for
0.8 V All Inputs
VIK
VOH
Input Clamp Diode Voltage
Output HIGH Voltage
54
74
– 0.65 – 1.5
2.5 3.5
2.7 3.5
V VCC = MIN, IIN = – 18 mA
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
Output LOW Voltage
54, 74
74
0.25 0.4
0.35 0.5
V IOL = 4.0 mA VCC = VCC MIN,
VIN = VIL or VIH
V IOL = 8.0 mA per Truth Table
D Input
E Input
IIH Input HIGH Current
D Input
E Input
20
80
µA VCC = MAX, VIN = 2.7 V
0.1
0.4
mA VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
D Input
E Input
– 0.4
– 1.6
mA VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
– 20
– 100 mA VCC = MAX
ICC Power Supply Current
12
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
mA VCC = MAX
AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V)
Limits
Symbol
Parameter
Min Typ Max
tPLH
tPHL
Propagation Delay, Data to Q
15 27
9.0 17
tPLH
tPHL
Propagation Delay, Data to Q
12 20
7.0 15
tPLH
tPHL
Propagation Delay, Enable to Q
15 27
14 25
tPLH
tPHL
Propagation Delay, Enable to Q
16 30
7.0 15
Unit
ns
ns
ns
ns
Test Conditions
VCC = 5.0 V
CL = 15 pF
FAST AND LS TTL DATA
5-529


Part Number SN74LS375
Description 4-BIT D LATCH
Maker Motorola
Total Page 5 Pages
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