MM74HC126MTC

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Quad 3-State Non-Inverting Buffer
• Package: TSSOP-14
• Essence: The MM74HC126MTC is a high-speed quad 3-state non-inverting buffer integrated circuit. It is commonly used in digital logic circuits to provide buffering and driving capabilities.
• Packaging/Quantity: The MM74HC126MTC is available in a TSSOP-14 package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Buffers: 4
• Output Type: 3-State
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MM74HC126MTC has a total of 14 pins arranged as follows:

__ __ 1 |1 \__/ 14| Vcc 2 |2 13| Output Y1 3 |3 12| Output Y2 4 |4 11| Output Y3 5 | 10| Output Y4 6 |6 9| GND 7 |7 8| Input Enable ‾‾‾‾‾‾‾‾‾‾

Functional Features

• High-Speed Operation: The MM74HC126MTC operates at high speeds, making it suitable for applications that require fast data transmission and processing.
• Quad 3-State Buffer: It features four independent non-inverting buffers with 3-state outputs, allowing multiple signals to be buffered and controlled individually.
• Output Enable Control: The input enable pin (pin 8) can be used to enable or disable the outputs of all four buffers simultaneously, providing flexibility in controlling the signal flow.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing.
• 3-state outputs allow for flexible signal control.
• Compact TSSOP-14 package saves board space.
• Wide operating temperature range (-40°C to +85°C) ensures reliability in various environments.

Disadvantages

• Limited voltage supply range (2V to 6V).
• Not suitable for applications requiring higher voltage levels.
• May require additional components for specific circuit configurations.

Working Principles

The MM74HC126MTC operates based on the principles of digital logic. When the input enable pin (pin 8) is high, the outputs (Y1-Y4) follow the input signals. Conversely, when the input enable pin is low, the outputs are in a high-impedance state, effectively disconnecting them from the circuit.

Detailed Application Field Plans

The MM74HC126MTC finds applications in various fields where buffering and driving capabilities are required. Some common application areas include:

1. Microcontrollers: The MM74HC126MTC can be used to interface microcontrollers with other digital devices, ensuring proper signal levels and protection against noise.
2. Communication Systems: It is suitable for buffering and driving signals in communication systems, such as UART, SPI, and I2C interfaces.
3. Data Acquisition: The IC can be utilized in data acquisition systems to buffer analog signals before conversion to digital form.
4. Industrial Automation: It finds use in industrial automation systems for signal conditioning and interfacing between different modules.

Detailed and Complete Alternative Models

• SN74HC126N: This is a similar quad 3-state non-inverting buffer IC from Texas Instruments, available in a DIP-14 package.
• CD74HC126E: Another alternative from Texas Instruments, featuring the same functionality but in a PDIP-14 package.
• 74HCT126: This IC from NXP Semiconductors is a compatible alternative with TTL-level inputs and outputs.

These alternative models provide similar functionality to the MM74HC126MTC and can be used as replacements depending on specific requirements.

In conclusion, the MM74HC126MTC is a high-speed quad 3-state non-inverting buffer integrated circuit. It offers advantages such as high-speed operation, 3-state outputs, and compact packaging. However, it has limitations in terms of voltage supply range and may require additional components for certain applications. Its working principle involves enabling or disabling the outputs based on the input enable pin. The IC finds applications in microcontrollers, communication systems, data acquisition, and industrial automation. Alternative models like SN74HC126N, CD74HC126E, and 74HCT126 can