MC74LCX158DT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Multiplexer
• Characteristics:
  • Low-voltage CMOS technology
  • High-speed operation
  • Wide operating voltage range
  • Small package size
• Package: TSSOP-16
• Essence: MC74LCX158DT is a logic multiplexer IC that allows multiple input signals to be selected and routed to a single output based on control inputs.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.3V to 3.6V
• Input Voltage Range: GND to VCC
• Output Voltage Range: GND to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 4.5ns (typical)
• Maximum Quiescent Current: 10μA

Detailed Pin Configuration

MC74LCX158DT has a total of 16 pins, which are assigned as follows:

1. A0: Input A0
2. A1: Input A1
3. A2: Input A2
4. A3: Input A3
5. B: Input B
6. C: Input C
7. D: Input D
8. E: Input E
9. Y: Output Y
10. G1: Enable Input G1
11. G2: Enable Input G2
12. G3: Enable Input G3
13. GND: Ground
14. NC: No Connection
15. VCC: Power Supply
16. NC: No Connection

Functional Features

• Logic Multiplexing: MC74LCX158DT can select one of the eight input signals (A0-A3, B, C, D, E) and route it to the output Y based on the control inputs (G1, G2, G3).
• Low-Voltage Operation: The IC operates at a low voltage range of 2.3V to 3.6V, making it suitable for battery-powered devices.
• High-Speed Operation: With a propagation delay time of 4.5ns, the IC ensures fast switching between input signals.
• Wide Operating Voltage Range: MC74LCX158DT can operate within a wide voltage range, providing flexibility in various applications.
• Small Package Size: The TSSOP-16 package offers a compact form factor, saving valuable board space.

Advantages and Disadvantages

Advantages: - Low-voltage operation extends battery life in portable devices. - High-speed operation enables quick signal switching. - Wide operating voltage range enhances compatibility with different systems. - Small package size saves board space.

Disadvantages: - Limited number of input signals (eight) may not be sufficient for complex applications. - Lack of built-in protection features against voltage spikes or ESD events.

Working Principles

MC74LCX158DT utilizes CMOS technology to achieve logic multiplexing. The control inputs (G1, G2, G3) determine which input signal is selected and routed to the output Y. The selected input signal passes through internal logic gates and is then available at the output pin.

Detailed Application Field Plans

MC74LCX158DT finds applications in various fields, including:

1. Data Communication Systems: Used for signal routing and selection in data transmission circuits.
2. Industrial Automation: Enables efficient control signal selection in automated systems.
3. Consumer Electronics: Facilitates input signal switching in audio/video equipment.
4. Automotive Electronics: Provides signal routing capabilities in automotive control modules.
5. Medical Devices: Used for signal multiplexing in medical equipment.

Detailed and Complete Alternative Models

1. SN74LVC157A: 4-Line to 1-Line Data Selector/Multiplexer IC
2. CD4051B: Single 8-Channel Analog Multiplexer/Demultiplexer IC
3. 74HC151: 8-Input Multiplexer IC
4. MC14051B: 8-Channel Analog Multiplexer/Demultiplexer IC
5. CD74HC4067: 16-Channel Analog Multiplexer/Demultiplexer IC

These alternative models offer similar functionality to MC74LCX158DT and can be considered based on specific application requirements.

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