MM74HC126SJX

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Quad 3-State Non-Inverting Buffer
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The MM74HC126SJX is a quad 3-state non-inverting buffer that operates at high speed and provides a convenient interface between different logic levels.
• Packaging/Quantity: The MM74HC126SJX is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 9ns (typical)
• Output Current: ±25mA

Pin Configuration

The MM74HC126SJX has a total of 14 pins, which are labeled as follows:

1. 1A
2. 1Y
3. GND
4. 2A
5. 2Y
6. 3A
7. 3Y
8. 4A
9. 4Y
10. GND
11. 4OE
12. 3OE
13. Vcc
14. 1OE

Functional Features

• Quad 3-state non-inverting buffer with separate output enable for each channel.
• High-speed operation makes it suitable for applications requiring fast signal transmission.
• Provides voltage level shifting capability, allowing interfacing between different logic families.
• 3-state outputs allow multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient signal transmission.
• 3-state outputs provide flexibility in bus sharing applications.
• Wide operating voltage range allows compatibility with various systems.
• Small package size (SOIC) makes it suitable for space-constrained designs.

Disadvantages

• Limited output current may not be sufficient for driving heavy loads.
• Lack of built-in protection features may require additional circuitry for robustness.

Working Principles

The MM74HC126SJX operates as a buffer, amplifying and reshaping input signals to match the desired logic levels. It uses CMOS technology, which provides high-speed operation and low power consumption. The separate output enable pins allow individual control of each channel, enabling 3-state functionality.

Detailed Application Field Plans

The MM74HC126SJX is commonly used in various digital systems and communication devices. Some specific application areas include:

1. Microcontroller interfacing
2. Data bus buffering
3. Address decoding
4. Signal level shifting
5. Clock distribution

Detailed and Complete Alternative Models

1. SN74HC126N: Similar quad 3-state non-inverting buffer from Texas Instruments.
2. CD74HC126E: Quad 3-state non-inverting buffer from Texas Instruments.
3. 74HCT126: Quad 3-state non-inverting buffer with TTL compatibility.

These alternative models offer similar functionality and can be used as substitutes for the MM74HC126SJX in various applications.

In conclusion, the MM74HC126SJX is a high-speed quad 3-state non-inverting buffer that provides voltage level shifting capability and flexible bus sharing. Its small package size and wide operating voltage range make it suitable for a variety of digital systems and communication devices. However, its limited output current and lack of built-in protection features should be considered when designing robust circuits.