CD74HC125E

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics:
  • High-speed CMOS logic
  • Quad 3-state non-inverting buffer
  • Wide operating voltage range: 2V to 6V
  • High output current: ±6mA
• Package: 14-pin DIP (Dual In-line Package)
• Essence: CD74HC125E is a quad 3-state non-inverting buffer IC that provides high-speed CMOS logic functionality. It is commonly used as a buffer or line driver in various electronic applications.
• Packaging/Quantity: CD74HC125E is typically available in reels or tubes, with quantities varying based on the manufacturer's packaging specifications.

Specifications

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

Pin Configuration

CD74HC125E has a 14-pin DIP package with the following pin configuration:

+---+--+---+ OE1 --|1 +--+ 14|-- VCC A1 --|2 13|-- Y1 B1 --|3 12|-- A4 Y1 --|4 11|-- B4 A2 --|5 74HC 10|-- Y4 B2 --|6 125E 9|-- GND Y2 --|7 8|-- OE2 +----------+

Functional Features

• CD74HC125E is a quad 3-state non-inverting buffer IC that provides high-speed CMOS logic functionality.
• It features a wide operating voltage range of 2V to 6V, making it suitable for various electronic applications.
• The IC offers four independent buffer channels, each with a 3-state output.
• It has a high output current capability of ±6mA, allowing it to drive various loads efficiently.

Advantages and Disadvantages

Advantages: - High-speed CMOS logic ensures fast signal propagation. - Wide operating voltage range allows compatibility with different power supply levels. - 3-state output enables flexible control of the output state. - High output current capability facilitates driving of diverse loads.

Disadvantages: - Limited number of buffer channels (four in total). - Not suitable for applications requiring higher output currents.

Working Principles

CD74HC125E operates based on CMOS (Complementary Metal-Oxide-Semiconductor) technology. It uses a combination of NMOS and PMOS transistors to achieve high-speed logic functionality. The input signals are buffered and inverted by the internal circuitry, and the output state can be controlled using the OE1 and OE2 pins. When the output enable pins (OE1 and OE2) are active, the outputs (Y1-Y4) are in a high-impedance state, allowing multiple devices to share a common bus without interference.

Detailed Application Field Plans

CD74HC125E finds applications in various electronic systems, including but not limited to: - Data communication systems - Microcontroller interfacing - Memory address decoding - Bus drivers - Signal amplification - Level shifting

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to CD74HC125E include: - SN74HC125 - MC74HC125 - 74HCT125 - CD74HCT125

These alternative models are compatible with CD74HC125E in terms of pin configuration, electrical characteristics, and functional features. However, it is essential to refer to the respective datasheets for detailed specifications and differences.

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