4-INPUT MULTIPLEXER. SN54LS352 Datasheet

SN54LS352 MULTIPLEXER. Datasheet pdf. Equivalent

SN54LS352 Datasheet
Recommendation SN54LS352 Datasheet
Part SN54LS352
Description DUAL 4-INPUT MULTIPLEXER
Feature SN54LS352; DUAL 4-INPUT MULTIPLEXER The SN54 / 74LS352 is a very high-speed Dual 4-input Multiplexer with Commo.
Manufacture Motorola Inc
Datasheet
Download SN54LS352 Datasheet




Motorola  Inc SN54LS352
DUAL 4-INPUT MULTIPLEXER
The SN54 / 74LS352 is a very high-speed Dual 4-input Multiplexer with
Common Select inputs and individual Enable inputs for each section. It can
select two bits of data from four sources. The two buffered outputs present
data in the inverted (complementary) form. The SN54/ 74LS352 is the func-
tional equivalent of the SN54/ 74LS153 except with inverted outputs.
Inverted Version of the SN54 / 74LS153
Separate Enables for Each Multiplexer
Input Clamp Diode Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC Eb S0 I3b I2b I1b I0b Zb
16 15 14 13 12 11 10 9
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
1 2 3 4 56 78
Ea S1 I3a I2a I1a I0a Za GND
PIN NAMES
S0, S1
E
I0 – I1
Z
Common Select Inputs
Enable (Active LOW) Input
Multiplexer Inputs
Multiplexer Outputs (note b)
LOADING (Note a)
HIGH
LOW
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 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 2.5 U.L. for Military (54) and 5 U.L. for Commercial
(74) Temperature Ranges.
Ea I0a I1a
1 65
LOGIC DIAGRAM
I2a
4
I3a S1 S0 I0b
32
14 10
I1b I2b I3b Eb
11 12
13 15
SN54/74LS352
DUAL 4-INPUT MULTIPLEXER
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
7
Za
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
9
Zb
1 6 5 4 3 10 11 12 13 15
Ea I0a I1a I2a I3a I0b I1b I2b I3b Eb
14 S0
2 S1
Za
Zb
79
VCC = PIN 16
GND = PIN 8
FAST AND LS TTL DATA
5-505



Motorola  Inc SN54LS352
SN54 / 74LS352
FUNCTIONAL DESCRIPTION
The SN54 / 74LS352 is a Dual 4-Input Multiplexer. It selects
two bits of data from up to four sources under the control of the
common Select Inputs (S0, S1). The two 4-input multiplexer
circuits have individual active LOW Enables (Ea, Eb) which
can be used to strobe the outputs independently. When the
Enables (Ea, Eb) are HIGH, the corresponding outputs (Za, Zb)
are forced HIGH.
The logic equations for the outputs are shown below.
Za = Ea (I0a S1 S0 + I1a S1 S0 + I2a S1 S0 + I3a S1 S0)
Zb = Eb (I0b S1 S0 + I1b S1 S0 + I2b S1 S0 + I3b S1 S0)
The SN54 / 74LS352 can be used to move data from a group
of registers to a common output bus. The particular register
from which the data came would be determined by the state of
the Select Inputs. A less obvious application is a function gen-
erator. The SN54 / 74LS352 can generate two functions of
three variables. This is useful for implementing highly irregular
random logic.
TRUTH TABLE
SELECT INPUTS
INPUTS (a or b)
S0
S1 E I0 I1
I2
X
X HX X
X
L
L LL X
X
L
L
LH
X
X
H
L LX L
X
H
L
LX
H
X
L
H LX X
L
L
H LX X
H
H
H LX X
X
H
H LX X
X
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
OUTPUT
I3 Z
XH
XH
XL
XH
XL
XH
XL
LH
HL
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH Output Current — High
IOL Output Current — Low
Min Typ Max Unit
54 4.5 5.0 5.5
74 4.75 5.0 5.25
V
54 – 55 25 125 °C
74 0 25 70
54, 74
– 0.4
mA
54 4.0 mA
74 8.0
FAST AND LS TTL DATA
5-506



Motorola  Inc SN54LS352
SN54 / 74LS352
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
IIH Input HIGH Current
20 µA VCC = MAX, VIN = 2.7 V
0.1 mA VCC = MAX, VIN = 7.0 V
IIL Input LOW Current
–0.4 mA VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
–20
– 100 mA VCC = MAX
ICC Power Supply Current
10
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,
Select to Output
19 29
25 38
tPLH
tPHL
Propagation Delay,
Enable to Output
16 24
21 32
tPLH
tPHL
Propagation Delay,
Data to Output
13 20
17 26
Unit
ns
ns
ns
Test Conditions
Figure 1 or 2
Figure 2
Figure 1
VCC = 5.0 V,
CL = 15 pF
VIN
VOUT
1.3 V
tPHL
1.3 V
Figure 1
AC WAVEFORMS
1.3 V
tPLH
1.3 V
VIN
VOUT
1.3 V
tPHL
tPLH
1.3 V
1.3 V
1.3 V
Figure 2
FAST AND LS TTL DATA
5-507







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