74AHC245PW

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74AHC245PW

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Logic Gates

  • ПроизводительNexperia

  • Мфр. Часть #74AHC245PW

  • В наличии13130

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

Гарантия подлинного продукта

Спецификации

Атрибут Ценность

Обзор

Description

The 74AHC245PW is an octal bus transceiver with 3-state outputs, designed for asynchronous two-way communication between data buses. It features eight bidirectional buffers that are controlled by two signals: the direction control (DIR) and the output enable (OE). When OE is low, the device transmits data from one bus to the other, depending on the state of DIR. If DIR is high, data flows from the A bus to the B bus, and if DIR is low, it flows from B to A. When OE is high, the outputs are in a high-impedance state, effectively disconnecting the buses.
The 74AHC245PW operates with a wide voltage range from 2.0V to 5.5V, making it suitable for various applications. It is part of the Advanced High-Speed CMOS (AHC) family, ensuring low power consumption and high-speed operation. Packaged in a TSSOP (Thin Shrink Small Outline Package), it is ideal for space-constrained applications. The device is commonly used in microcontroller interfacing, memory address/data multiplexing, and bidirectional communication systems.

Equivalent

The 74AHC245PW is an octal bus transceiver with 3-state outputs. Equivalent products include:
1. SN74AHC245 from Texas Instruments
2. MC74VHC245 from ON Semiconductor
3. TC74VHC245 from Toshiba
4. HEF245 from Nexperia
5. CD74HCT245 from Texas Instruments
These alternatives offer similar functionality, pin compatibility, and electrical characteristics, but always verify the datasheet for specific requirements and compatibility.

Features

The 74AHC245PW is an octal bus transceiver with 3-state outputs, designed for asynchronous two-way data communication between data buses. Operating from a 2.0 V to 5.5 V power supply, it ensures compatibility with standard CMOS and TTL levels. Key features include a high-speed operation and a low power consumption typical of advanced CMOS technology. It offers an 8-bit bidirectional data flow with three-state outputs controlled by a direction input (DIR) and an output enable input (OE). The device is pin-compatible with low-power Schottky TTL and can drive up to 50 pF loads.
Additional characteristics include a high noise immunity and the capability to drive 15 LSTTL loads. The device is also equipped with inputs that are tolerant of 5 V voltage levels, making it suitable for mixed-voltage applications. It is packaged in various forms, including TSSOP and SO packages, which are ideal for space-constrained applications. With a wide range of operating temperatures, it suits various environmental conditions, ensuring versatility across different applications.

Pinout

The 74AHC245PW is a 20-pin IC designed as an octal bus transceiver with 3-state outputs. It is used to interface two buses, enabling bidirectional data flow between them. Here's a concise breakdown of its pin count and functions:
- Pin Count: 20 pins
- Pin Functions:
- Pin 1: DIR (Direction control)
- Pin 2-9: A0-A7 (Data inputs/outputs for the A bus)
- Pin 10: GND (Ground)
- Pin 11-18: B0-B7 (Data inputs/outputs for the B bus)
- Pin 19: /OE (Output Enable, active low)
- Pin 20: VCC (Supply voltage)
The direction control pin (DIR) determines the direction of data transfer. When DIR is high, data flows from the A bus to the B bus. When DIR is low, data flows from the B bus to the A bus. The output enable pin, when low, enables the data transfer; when high, it places the outputs in a high-impedance state. This device is often used in digital systems for buffering and level shifting.

Manufacturer

The 74AHC245PW is manufactured by Nexperia, a company that specializes in the production of discrete, logic, and MOSFET devices. Nexperia was originally part of NXP Semiconductors but became an independent company in 2017. It focuses on delivering efficient and reliable semiconductor components for a wide range of electronics applications. Nexperia is known for its expertise in producing cost-effective and high-performance components that meet the stringent quality standards necessary for automotive, industrial, computing, and consumer markets. As a global leader in the semiconductor industry, Nexperia is recognized for its robust portfolio of products, including logic devices like the 74AHC245PW, which is an octal bus transceiver with 3-state outputs commonly used in various digital circuits for bidirectional data flow.

Application

The 74AHC245PW is a high-speed CMOS octal bus transceiver with 3-state outputs, commonly used in digital communication and data transfer applications. Key areas of application include:
1. Microprocessor/microcontroller systems: Facilitates bidirectional data transfer between CPU and peripherals.
2. Memory interfacing: Assists in data exchange between different memory units.
3. Bus-oriented systems: Used in address/data buses to control data flow.
4. Industrial automation: Supports communication in control systems.
5. Networking equipment: Provides interfacing solutions in routers and switches.
These capabilities make it suitable for improving data integrity and efficiency in various electronic systems.

Package

The 74AHC245PW is a high-speed CMOS device from Nexperia, featuring an 8-bit transceiver with 3-state outputs. It is provided in a TSSOP (Thin Shrink Small Outline Package) with 20 pins.

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