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74138 Datasheet

  • 74138

  • LOW POWER SCHOTTKY

  • 128.62KB

  • 8頁

  • ONSEMI

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SN74LS138
1-of-8 Decoder/
Demultiplexer
The LSTTL / MSI SN74LS138 is a high speed 1-of-8 Decoder /
Demultiplexer. This device is ideally suited for high speed bipolar
memory chip select address decoding. The multiple input enables
allow parallel expansion to a 1-of-24 decoder using just three LS138
devices or to a 1-of-32 decoder using four LS138s and one inverter.
The LS138 is fabricated with the Schottky barrier diode process for
high speed and is completely compatible with all ON Semiconductor
TTL families.
鈥?/div>
Demultiplexing Capability
鈥?/div>
Multiple Input Enable for Easy Expansion
鈥?/div>
Typical Power Dissipation of 32 mW
鈥?/div>
Active Low Mutually Exclusive Outputs
鈥?/div>
Input Clamp Diodes Limit High Speed Termination Effects
GUARANTEED OPERATING RANGES
Symbol
V
CC
T
A
I
OH
I
OL
Parameter
Supply Voltage
Operating Ambient
Temperature Range
Output Current 鈥?High
Output Current 鈥?Low
Min
4.75
0
Typ
5.0
25
Max
5.25
70
鈥?0.4
8.0
Unit
V
擄C
mA
mA
16
1
http://onsemi.com
LOW
POWER
SCHOTTKY
16
1
PLASTIC
N SUFFIX
CASE 648
SOIC
D SUFFIX
CASE 751B
ORDERING INFORMATION
Device
SN74LS138N
SN74LS138D
Package
16 Pin DIP
16 Pin
Shipping
2000 Units/Box
2500/Tape & Reel
漏
Semiconductor Components Industries, LLC, 1999
1
December, 1999 鈥?Rev. 6
Publication Order Number:
SN74LS138/D

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