74VHC138 3-to-8 Decoder/Demultiplexer VHC138 advanced high speed

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74VHC138 3-to-8 Decoder/Demultiplexer VHC138 advanced high speed

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74VHC138 3-to-8 Decoder/Demultiplexer
74VHC138 3-to-8 Decoder/Demultiplexer
VHC138 advanced high speed CMOS 3-to-8 DECODER fabricated with silicon gate CMOS technology. achieves high speed operation similar equivalent Bipolar Schottky while maintaining CMOS power dissipation. When device enabled, Binary Select inputs (A0, determine which outputs will low. When enable input held either held high, decoding function inhibited outputs high. inputs provided ease cascade connection address decoder memory systems. input protection circuit ensures that applied input pins without regard supply voltage. This device used interface systems supply systems such battery back This circuit prevents device destruction mismatched supply input voltages.
Features
High Speed: 5.7ns (typ) 25°C power dissipation: (max.) 25°C High noise immunity: VNIH VNIL (min.) Power down protection provided inputs function compatible with 74HC138
Ordering Code:
Commercial 74VHC138M 74VHC138SJ 74VHC138MTC 74VHC138N Package Number M16A M16D MTC16 N16E Package Description 16-Lead Molded JEDEC SOIC 16-Lead Molded EIAJ SOIC 16-Lead Molded JEDEC Type TSSOP 16-Lead Molded
Surface mount packages also available Tape Reel. Specify appending suffix letter ordering code.
Logic Symbols
Connection Diagram
Assignment DIP, TSSOP SOIC
DS011537-1
IEEE/IEC
DS011537-2
Descriptions
Names A0-A2 E1-E2
DS011537-3
Description Address Inputs Enable Inputs Enable Input Outputs
O0-O7
1998 Fairchild Semiconductor Corporation
DS011537
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Truth Table
Inputs Outputs
HIGH Voltage Level Voltage Level Immaterial
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Absolute Maximum Ratings (Note
Supply Voltage (VCC) Input Voltage (VIN) Output Voltage (VOUT) Input Diode Current (IIK) Output Diode Current (IOK) Output Current (IOUT) VCC/GND Current (ICC) Storage Temperature (TSTG) Lead Temperature (TL) (Soldering, seconds) -0.5V +7.0V -0.5V +7.0V -0.5V 0.5V -65°C +150°C 260°C
Recommended Operating Conditions
(Note Supply Voltage (VCC) Input Voltage (VIN) Output Voltage (VOUT) Operating Temperature (TOPR) 74VHC Input Rise Fall Time (tr, 3.3V 0.3V 5.0V 0.5V 2.0V +5.5V +5.5V -40°C +85°C ns/V ns/V
Note Absolute Maximum Ratings values beyond which device damaged have useful life impaired. databook specifications should met, without exception, ensure that system design reliable over power supply, temperature, output/input loading variables. Fairchild does recommend operation outside databook specifications. Note Unused inputs must held HIGH LOW. They float.
Electrical Characteristics
Symbol Parameter High Level Input Voltage Level Input Voltage High Level Output Voltage 3.0-5.5 3.0-5.5 Level Output Voltage Input Leakage Current Quiescent Supply Current 0-5.5 2.58 3.94 0.36 0.36 1.50 0.50 2.48 3.80 0.44 0.44 5.5V 25°C -40°C +85°C 1.50 0.50 Units Conditions
40.0
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Electrical Characteristics
Symbol Parameter tPLH, tPHL Propagation Delay tPLH, tPHL Propagation Delay tPLH, tPHL Propagation Delay Input Capacitance Power Dissipation Capacitance
Note defined value internal equivalent capacitance which calculated from operating current consumption without load. Average operating current obtained equation: (opr.) ICC.
25°C 10.0 10.6 10.7 11.4 15.8 10.1 12.8 16.3 10.1 11.4 14.9 10.1
-40°C +85°C 13.5 18.0 11.5 15.0 18.5 11.5 13.5 17.0 11.5
Units
Conditions
Open (Note
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Physical Dimensions
inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit-JEDEC Package Number M16A
16-Lead Small Outline Package-EIAJ (SJ) Package Number M16D
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Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
14-Lead Molded JEDEC SSOP Type (TSSOP) Package Number MTC16
16-Lead Molded Dual-In-Line Package (MDIP) Package Number N16E
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74VHC138 3-to-8 Decoder/Demultiplexer
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT FAIRCHILD SEMICONDUCTOR CORPORATION. used herein: critical component component life support Life support devices systems devices sysdevice system whose failure perform reatems which, intended surgical implant into sonably expected cause failure life support body, support sustain life, whose device system, affect safety effectiveness. failure perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user.
Fairchild Semiconductor Corporation Americas Customer Response Center Tel: 1-888-522-5372 Fairchild Semiconductor Europe Fax: 80-530 Email: europe.support@nsc.com Deutsch Tel: 141-35-0 English Tel: 793-85-68-56 Italy Tel: 5631 Fairchild Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, Canton Tsimshatsui, Kowloon Hong Kong Tel: +852 2737-7200 Fax: +852 2314-0061 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179
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Fairchild does assume responsibility circuitry described, circuit patent licenses implied Fairchild reserves right time without notice change said circuitry specifications.

74VHC138 3-to-8 Decoder/Demultiplexer VHC138 advanced high speed

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