74VHCT138AN Fairchild Semiconductor, 74VHCT138AN Datasheet

DECODER/DEMUX 3-TO-8 16DIP

74VHCT138AN

Manufacturer Part Number
74VHCT138AN
Description
DECODER/DEMUX 3-TO-8 16DIP
Manufacturer
Fairchild Semiconductor
Series
74VHCTr
Type
Decoder/Demultiplexerr
Datasheet

Specifications of 74VHCT138AN

Circuit
1 x 3:8
Independent Circuits
1
Current - Output High, Low
8mA, 8mA
Voltage Supply Source
Single Supply
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
©1993 Fairchild Semiconductor Corporation
74VHCT138A Rev. 1.2
74VHCT138A
3-to-8 Decoder/Demultiplexer
Features
Ordering Information
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering number.
74VHCT138AM
74VHCT138ASJ
74VHCT138AMTC
Order Number
High Speed: t
Low power dissipation: I
Power down protection is provided on all inputs and
outputs
Pin and function compatible with 74HCT138
PD
7.6ns (Typ.) at V
Package
Number
MTC16
M16A
M16D
CC
4µA (Max.) at T
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
CC
5V
A
25°C
General Description
The VHCT138A is an advanced high speed CMOS
3-to-8 DECODER fabricated with silicon gate CMOS
technology. It achieves the high speed operation similar
to equivalent Bipolar Schottky TTL while maintaining the
CMOS low power dissipation.
When the device is enabled, 3 Binary Select inputs
(A
(O
LOW or either E
is inhibited and all outputs go HIGH. E
are provided to ease cascade connection and for use as
an address decoder for memory systems. Protection
circuits ensure that 0V to 7V can be applied to the input
pins without regard to the supply voltage and to the out-
put pins with V
destruction due to mismatched supply and input/output
voltages. This device can be used to interface 3V to 5V
systems and two supply systems such as battery
backup.
0
0
, A
–O
Package Description
1
7
) will go LOW. When enable input E
and A
2
CC
) determine which one of the outputs
1
or E
0V. These circuits prevent device
2
is held HIGH, decoding function
3
, E
1
and E
www.fairchildsemi.com
May 2007
3
2
is held
inputs
tm

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74VHCT138AN Summary of contents

Page 1

... M16D 74VHCT138AMTC MTC16 Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering number. ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 General Description 5V The VHCT138A is an advanced high speed CMOS CC 3-to-8 DECODER fabricated with silicon gate CMOS 25° ...

Page 2

... Connection Diagram Pin Description Pin Names A –A Address Inputs –E Enable Inputs Enable Input 3 O –O Outputs 0 7 Truth Table Inputs HIGH Voltage Level L LOW Voltage Level X Immaterial ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 Logic Symbols Description IEEE/IEC Outputs www.fairchildsemi.com ...

Page 3

... Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 3 www.fairchildsemi.com ...

Page 4

... HIGH or LOW state. I absolute maximum rating must be observed. OUT 3. V GND (Outputs Active). OUT OUT CC 4. Unused inputs must be held HIGH or LOW. They may not float. ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 Parameter (3) (4) Parameter 5.0V ±0. Rating –0.5V to +7.0V – ...

Page 5

... PD current consumption without load. Average operating current can be obtained by the equation: I (Opr.) C • V • ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 V (V) Conditions CC 4.5 – 5.5 4.5 – 5.5 4 –50µA ...

Page 6

... Physical Dimensions Dimensions are in millimeters unless otherwise noted. Figure 1. 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 Package Number M16A 6 www.fairchildsemi.com ...

Page 7

... Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure 2. 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 Package Number M16D 7 www.fairchildsemi.com ...

Page 8

... Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. 5.00±0.10 0.11 MTC16rev4 Figure 3. 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide ©1993 Fairchild Semiconductor Corporation 74VHCT138A Rev. 1.2 4.55 4.4±0.1 Package Number MTC16 8 5.90 4.45 0.65 1 ...

Page 9

... TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ® ACEx Across the board. Around the world.™ ActiveArray™ Bottomless™ Build it Now™ CoolFET™ CorePLUS™ ...

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