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74HCT138N
A versatile IC solution for selecting one of eight inputs or output74HCT138N
A versatile IC solution for selecting one of eight inputs or output
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Manufacturer Part # : 74HCT138N
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Package/Case: 16-DIP
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Brand: Nxp Usa Inc.
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Product Categories : Signal Switches, Multiplexers, Decoders
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Service & Packaging
Service & Packaging
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74HCT138N DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
GENERAL DESCRIPTIONThe 74HC/HCT138 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.FEATURES• Demultiplexing capability• Multiple input enable for easy expansion• Ideal for memory chip select decoding• Active LOW mutually exclusive outputs• Output capability: standard• ICC category: MSI
Key Features
- Demultiplexing capability
- Multiple input enable for easy expansion
- Ideal for memory chip select decoding
- Active LOW mutually exclusive outputs
- Output capability: standard
- ICC category: MSI
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | Yes | Part Life Cycle Code | Transferred |
| Reach Compliance Code | ECCN Code | EAR99 | |
| HTS Code ! | 8542.39.00.01 | JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 | Load Capacitance (CL) | 50 pF |
| Logic IC Type | OTHER DECODER/DRIVER | Max I(ol) | 0.004 A |
| Number of Functions | 1 | Number of Terminals | 16 |
| Operating Temperature-Max | 85 °C | Operating Temperature-Min | -40 °C |
| Package Body Material | PLASTIC/EPOXY | Package Code | DIP |
| Package Equivalence Code | DIP16,.3 | Package Shape | RECTANGULAR |
| Package Style | IN-LINE | Power Supplies ! | 5 V |
| Prop. Delay@Nom-Sup | 44 ns | Qualification Status ! | Not Qualified |
| Supply Voltage-Nom (Vsup) | 5 V | Surface Mount ! | NO |
| Technology | CMOS | Temperature Grade ! | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Terminal Form ! | THROUGH-HOLE |
| Terminal Pitch ! | 2.54 mm | Terminal Position | DUAL |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is 74HCT138N?
The 74HCT138N is a 3-to-8 line decoder/demultiplexer integrated circuit (IC) manufactured by NXP Semiconductors. It is commonly used to decode binary information to drive indicators, LEDs, or other devices in digital systems.
How Does 74HCT138N Work?
The 74HCT138N works by taking a 3-bit binary input and selecting one of the 8 output lines based on the input combination. It uses a combination of gates and logic to enable the appropriate output line, allowing for efficient demultiplexing and decoding of digital signals.
How Many Pins does 74HCT138N have and What are the Functions of the Pinout Configuration?
The 74HCT138N is housed in a 16-pin DIP (Dual In-line Package) package. The pinout configuration includes:
- GND: Ground pin.
- Y0 to Y7: Output lines for the demultiplexed signals.
- E1, E2, E3: Enable inputs for selecting the output line.
- A, B, C: Binary inputs for selecting the output line.
- VCC: Positive power supply pin.
What are the Pros and Cons of 74HCT138N?
Pros:
- High Efficiency: Provides efficient 3-to-8 demultiplexing for digital systems.
- Wide Voltage Range: Compatible with both TTL and CMOS voltage levels.
- Easy Integration: Simple interface and operation for straightforward system integration.
- Cost-Effective: Offers cost-effective demultiplexing and decoding functionality.
Cons:
- Limited Functionality: Designed specifically for 3-to-8 decoding, may not be suitable for other applications.
- Power Consumption: Consumes power even when not actively selecting an output line.
Are There Any Equivalents/Alternatives to 74HCT138N for Recommendation?
- The SN74LS138 from Texas Instruments is a similar 3-to-8 line decoder/demultiplexer.
- Alternatives to the 74HCT138N include the CD74HC238 from Texas Instruments and the DM74LS138 from Fairchild Semiconductor.
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