SN74LS353N データシートの表示（PDF） - Motorola => Freescale
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SN74LS353N Datasheet PDF : 6 Pages
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DUAL 4-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
The LSTTL/ MSI SN54/ 74LS353 is a Dual 4-Input Multiplexer with 3-state
outputs. It can select two bits of data from four sources using common select
inputs. The outputs may be individually switched to a high impedance state
with a HIGH on the respective Output Enable (E0) inputs, allowing the outputs
to interface directly with bus oriented systems. It is fabricated with the Schott-
ky barrier diode process for high speed and is completely compatible with all
TTL families.
• Inverted Version of the SN54 / 74LS253
• Schottky Process for High Speed
• Multifunction Capability
• Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC E0b S0
16 15 14
I3b I2b I1b
13 12 11
I0b Zb
10 9
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
1
2
3
4
5
6
78
E0a S1 I3a I2a I1a I0a Za GND
PIN NAMES
S0, S1
Common Select Inputs
LOADING (Note a)
HIGH
LOW
0.5 U.L.
0.25 U.L.
Multiplexer A
E0a
I0A – I3a
Za
Output Enable (Active LOW) Input
Multiplexer Inputs
Multiplexer Output (Note b)
0.5 U.L.
0.5 U.L.
65 (25) U.L.
0.25 U.L.
0.25 U.L.
15 (7.5) U.L.
Multiplexer B
E0b
I0b – I3b
Zb
Output Enable (Active LOW) Input
Multiplexer Inputs
Multiplexer Output (Note b)
0.5 U.L.
0.5 U.L.
65 (25) U.L.
0.25 U.L.
0.25 U.L.
15 (7.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 7.5 U.L. for Military (54) and 15 U.L. for Commercial
(74) Temperature Ranges. The Output HIGH drive factor is 25 U.L. for Military and 65 U.L.
for Commercial Temperature Ranges.
SN54/74LS353
DUAL 4-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
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
1 6 5 4 3 10 11 12 13 15
E0a I0a I1a I2a I3a I0b I1b I2b I3b E0b
14
S0
2
S1
Za
Zb
7
9
VCC = PIN 16
GND = PIN 8
FAST AND LS TTL DATA
5-510
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