Encyclopedia Entry: 74VHC244D,118

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-Speed, Low-Power, CMOS Technology
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Buffer/Line Driver
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage: 2.0V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 4.8 ns (typical)

Detailed Pin Configuration

The 74VHC244D,118 IC has a total of 20 pins, which are arranged as follows:

+---\/---+ A1 -- |1 20| -- VCC B1 -- |2 19| -- B2 A2 -- |3 18| -- A3 B3 -- |4 17| -- B4 A4 -- |5 16| -- A5 B5 -- |6 15| -- B6 GND -- |7 14| -- GND OE -- |8 13| -- OE Y1 -- |9 12| -- Y2 Y3 -- |10 11| -- Y4 +--------+

Functional Features

• The 74VHC244D,118 is a high-speed CMOS buffer/line driver IC.
• It operates at a wide supply voltage range of 2.0V to 5.5V, making it suitable for various applications.
• The IC provides non-inverting outputs and can drive up to 10 LSTTL loads.
• It features low power consumption and high noise immunity due to its CMOS technology.
• The device has an output enable (OE) input pin, which allows the user to control the output state.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transmission. - Wide supply voltage range offers flexibility in different systems. - Low power consumption reduces energy usage. - CMOS technology provides high noise immunity.

Disadvantages: - Limited maximum operating frequency compared to some other ICs. - Requires careful handling to prevent damage due to static electricity.

Working Principles

The 74VHC244D,118 is designed to act as a buffer or line driver in digital systems. It takes input signals and amplifies them to drive output lines. The IC uses CMOS technology, which allows for high-speed operation while consuming low power. The output enable (OE) pin controls the output state, enabling or disabling the driving of the output lines.

Detailed Application Field Plans

The 74VHC244D,118 is commonly used in various digital systems that require logic level shifting. Some typical application fields include: - Microcontrollers and microprocessors - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SN74LVC244A: Similar functionality with a wider supply voltage range (1.65V to 5.5V).
• MC74VHC244: Higher maximum operating frequency (200 MHz) but with a narrower supply voltage range (2.0V to 5.5V).
• CD74HCT244: Compatible with TTL logic levels but operates at a slower speed.

These alternative models offer similar functionality and can be used as substitutes for the 74VHC244D,118 in various applications.

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