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CD74AC245SM96
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CD74AC245SM96

Product Overview

  • Category: Integrated Circuit
  • Use: Signal Level Shifter
  • Characteristics: High-Speed, Octal Bus Transceiver
  • Package: Surface Mount (SOIC-20)
  • Essence: Transfers data between different voltage levels in digital systems
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage Levels: 0V to VCC
  • Output Voltage Levels: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 5.5ns (typical)
  • Output Drive Capability: ±24mA

Pin Configuration

The CD74AC245SM96 has a total of 20 pins arranged as follows:

__ __ A1 |1 \__/ 20| VCC A2 |2 19| B1 A3 |3 18| B2 A4 |4 17| B3 A5 |5 16| B4 A6 |6 15| B5 A7 |7 14| B6 GND |8 13| B7 OE |9 12| B8 DIR |10 11| GND ----------

Functional Features

  • Bidirectional data transfer between two buses with different voltage levels
  • Non-inverting outputs for both input and output data
  • 3-state output control for bus isolation
  • High-speed operation suitable for high-frequency applications
  • Schmitt-trigger inputs for noise immunity

Advantages

  • Allows interfacing between systems with different voltage levels
  • Provides reliable data transfer with minimal delay
  • Supports high-speed operation for time-critical applications
  • Offers noise immunity through Schmitt-trigger inputs

Disadvantages

  • Limited to 8-bit data transfer
  • Requires careful consideration of voltage compatibility between input and output buses
  • May introduce additional power consumption in the system

Working Principles

The CD74AC245SM96 is an octal bus transceiver that enables bidirectional data transfer between two buses operating at different voltage levels. It uses non-inverting outputs, allowing seamless communication between systems. The device features a 3-state output control, which allows bus isolation when necessary.

The transceiver operates at high speeds, making it suitable for applications requiring fast data transfer. It incorporates Schmitt-trigger inputs, providing noise immunity and ensuring reliable signal reception even in noisy environments.

Detailed Application Field Plans

The CD74AC245SM96 finds application in various digital systems where data needs to be transferred between buses with different voltage levels. Some common application fields include:

  1. Microcontroller interfacing with external memory modules
  2. Communication interfaces between different logic families
  3. Level shifting in mixed-voltage systems
  4. Data transfer between FPGA and peripheral devices
  5. Signal level conversion in industrial automation systems

Detailed and Complete Alternative Models

  1. SN74LV245A: Low-Voltage Octal Bus Transceiver
  2. MC74VHC245: High-Speed CMOS Octal Bus Transceiver
  3. CD74HCT245: High-Speed CMOS Octal Bus Transceiver with 3-State Outputs
  4. SN74LVC245A: Low-Voltage CMOS Octal Bus Transceiver

These alternative models offer similar functionality but may have differences in voltage compatibility, speed, or package options. It is important to select the appropriate model based on specific requirements and system constraints.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi CD74AC245SM96 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of CD74AC245SM96 in technical solutions:

  1. Q: What is CD74AC245SM96? A: CD74AC245SM96 is a type of integrated circuit (IC) commonly used as a bidirectional transceiver for converting signals between different voltage levels.

  2. Q: What is the operating voltage range of CD74AC245SM96? A: CD74AC245SM96 operates within a voltage range of 2V to 6V.

  3. Q: Can CD74AC245SM96 be used for level shifting between different logic families? A: Yes, CD74AC245SM96 is suitable for level shifting between TTL and CMOS logic families.

  4. Q: How many data lines can CD74AC245SM96 handle? A: CD74AC245SM96 has 8 bidirectional data lines, allowing it to transmit and receive data simultaneously.

  5. Q: What is the maximum data transfer rate supported by CD74AC245SM96? A: CD74AC245SM96 supports data transfer rates up to 125 MHz.

  6. Q: Can CD74AC245SM96 be used for bus buffering applications? A: Yes, CD74AC245SM96 is commonly used for bus buffering, where it helps isolate and protect the connected devices from each other.

  7. Q: Does CD74AC245SM96 have any built-in protection features? A: Yes, CD74AC245SM96 includes input diodes that provide protection against electrostatic discharge (ESD).

  8. Q: What is the typical propagation delay of CD74AC245SM96? A: The typical propagation delay of CD74AC245SM96 is around 6 ns.

  9. Q: Can CD74AC245SM96 be used in both parallel and serial communication systems? A: Yes, CD74AC245SM96 can be used in both parallel and serial communication systems, depending on the application requirements.

  10. Q: What is the package type of CD74AC245SM96? A: CD74AC245SM96 is available in a small-outline integrated circuit (SOIC) package with 20 pins.

Please note that these answers are general and may vary based on specific datasheet specifications or application requirements.