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Name: 74HCT138DB,112
Brand: NXP Semiconductors
SKU: 74HCT138DB,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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NXP Semiconductors 74HCT138DB,112

Part No.:: 74HCT138DB,112

Manufacturer:: NXP Semiconductors

Package:: -

Datasheet:: 74HCT138DB,112.pdf

Description:: NEXPERIA 74HCT138DB - DECODER/DR

In Stock:: 2632

Quantity:: Add To Cart

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74HCT138DB,112 Specifications

Packaging:
Bulk
Series:
*
ProductStatus:
Active
Type:
-
Circuit:
-
IndependentCircuits:
-
Current-OutputHighLow:
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VoltageSupplySource:
-
Voltage-Supply:
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OperatingTemperature:
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MountingType:
-

74HCT138DB,112 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including 74HCT138DB,112 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for 74HCT138DB,112 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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74HCT138DB,112 information

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74HCT138DB,112 Typical application Circuitry

74HCT138DB,112

The 74HCT138DB,112 is a high-performance integrated circuit from the 74HC/HCT series, known for its high-speed Si-gate CMOS technology. This device is specifically designed as a 3-to-8 line decoder/demultiplexer, offering precise control and flexibility in various digital circuits.

1. Series Overview: The 74HCT138DB,112 belongs to the 74HC/HCT series, which is characterized by its compatibility with TTL (Transistor-Transistor Logic) levels while being fabricated with CMOS technology. Strong noise immunity, low power consumption, and high speed operation are made possible by this combination. The 'T' in HCT indicates TTL-compatible input levels, making the 74HCT138DB,112 ideal for interfacing with older TTL logic or when mixed-voltage systems are in play.

2. Functional Description: The 74HCT138DB,112 is a 3-to-8 line decoder/demultiplexer that can decode three binary weighted inputs (A0, A1, and A2) into eight outputs that are mutually exclusive (Y0 to Y7). Depending on the mix of inputs, only one output is active low at any one moment. Because of this characteristic, it is a crucial part of memory selection circuits for extending control lines or decoding addresses.

3. Operating Voltage: The 74HCT138DB,112 operates at a supply voltage (VCC) ranging from 4.5V to 5.5V, which is the typical voltage range for 5V digital systems. This voltage range ensures compatibility with TTL levels while providing the advantages of CMOS technology, such as lower power consumption.

4. Power Supply Connections: Connect pin 16 (VCC) to your +5V power supply. This is within the operating voltage range of 4.5V to 5.5V. Pin 8 (GND) should be connected to the circuit's ground, establishing a common reference point for all voltage levels in your circuit.

5. Enable Inputs: The device has three enable inputs, G1 (pin 6), G2A (pin 5), and G2B (pin 4). For the decoder to operate, G1 and G2A must be connected to ground (LOW), making them active, while G2B should be tied to VCC (HIGH), enabling the device to decode the inputs to the outputs.

6. Address Inputs: The A0, A1, and A2 inputs (pins 1, 2, and 3, respectively) are the binary weighted address inputs that determine which output will be active. These pins should be connected to your control logic or switches to select one of the eight outputs.

7. Outputs: The eight outputs (Y0 to Y7, pins 15, 14, 13, 12, 11, 10, 9, and 7) are configured such that only one output is active (LOW) at any given time. The active output corresponds to the binary value presented at the address inputs. These outputs can drive various loads, including LEDs, other logic gates, or microcontroller inputs, depending on your application.

8. Decoupling Capacitor: Although not a pin, it's crucial to place a 0.1 µF ceramic decoupling capacitor close to the VCC and GND pins of the 74HCT138DB,112. This capacitor filters out noise from the power supply, ensuring stable operation of the device.

The 74HCT138DB,112's precise operation and connection method highlight its role in complex digital systems. Its ability to decode binary inputs into distinct outputs, coupled with TTL compatibility, makes it a versatile choice for expanding the functionality of digital circuits without the need for additional logic devices.

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6. What is the process for return or replacement of 74HCT138DB,112?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

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