SN74HC245N

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SN74HC245N

+БОМ

IC TXRX NON-INVERT 6V 20DIP

  • ПроизводительТехасские инструменты

  • Мфр. Часть #SN74HC245N

  • Пакет PDIP (N)-20

  • В наличии2728

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Спецификации

Атрибут Ценность
Package Tube
Series 74HC
ProductStatus Active
LogicType Transceiver, Non-Inverting
NumberofElements 1
NumberofBitsperElement 8
OutputType 3-State
Current-OutputHighLow 7.8mA, 7.8mA
Voltage-Supply 2V ~ 6V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Through Hole
Package/Case 20-DIP (0.300, 7.62mm)

Обзор

Description

The SN74HC245N is an integrated circuit (IC) that serves as an octal (8-bit) bidirectional transceiver with three-state bus communication capabilities. It is part of the 74HC family, which is known for its high-speed CMOS logic technology. This IC is designed to allow data flow in both directions between buses, making it highly useful in microcontroller and microprocessor systems where data needs to be transferred between different parts of a digital circuit.
Key features of the SN74HC245N include:
1. Bidirectional Data Transfer: The IC can control data flow direction with the use of a direction control pin, allowing seamless communication between two separate buses.
2. Three-State Outputs: It features three-state outputs, which means it can be set to a high-impedance state to effectively disconnect from the bus, allowing for bus sharing among multiple devices.
3. Operating Voltage Range: Typically operates from 2V to 6V, making it versatile for various applications.
4. Low Power Consumption: Due to its CMOS technology, it consumes less power compared to older logic IC families.
This IC is commonly used in applications requiring bus interfacing and buffering.

Equivalent

The SN74HC245N is an octal bus transceiver with 3-state outputs. Equivalent products include:
1. 74HCT245 - NXP
2. MC74HC245 - ON Semiconductor
3. CD74HC245 - Texas Instruments
4. TC74HC245 - Toshiba
5. 74ACT245 - Fairchild Semiconductor
These alternatives offer similar functionality, but check datasheets for specific electrical characteristics and compatibility with your application.

Features

The SN74HC245N is an octal bus transceiver with 3-state outputs, designed for asynchronous communication between data buses. Key features include:
1. Bidirectional Data Transfer: Allows for data flow in both directions between buses.
2. 3-State Outputs: Supports multiple connections on a bus line by enabling the outputs to be in a high-impedance state.
3. High-Speed CMOS Technology: Delivers fast switching speeds and low power consumption.
4. Wide Operating Voltage Range: Functions efficiently from 2V to 6V, making it versatile for various applications.
5. TTL-Compatible Inputs: Ensures compatibility with standard logic levels.
6. Low Power Dissipation: Operates with minimal power requirements, enhancing efficiency.
7. Drive Capability: Can drive 15 LSTTL loads, making it suitable for larger systems.
8. Enable/Disable Function: Features a direction control (DIR) and an output enable (OE) for flexible operation.
These features make the SN74HC245N suitable for buffering and driving data in digital systems, such as microprocessor-based systems and other digital interfaces.

Pinout

The SN74HC245N is an integrated circuit that features an 8-bit bus transceiver with three-state outputs. It has a total of 20 pins. Here's a brief overview of its pin functions:
1. DIR (Pin 1): Direction control pin that determines the data flow direction.
2. A1-A8 (Pins 2-9): Data inputs/outputs for the A bus.
3. OE (Pin 19): Output enable pin. When low, it enables the transceiver function; when high, it places the outputs in a high-impedance state.
4. B1-B8 (Pins 18-11): Data inputs/outputs for the B bus.
5. VCC (Pin 20): Supply voltage pin.
6. GND (Pin 10): Ground pin.
The SN74HC245N is used primarily for buffering and driving data buses, providing bidirectional data transfer between two buses. It is controlled via the DIR and OE pins to manage the direction and enable/disable the data flow, making it suitable for applications requiring bus interfacing or memory address driving.

Manufacturer

The SN74HC245N is manufactured by Texas Instruments (TI). Texas Instruments is a renowned American technology company that designs and manufactures semiconductors and various integrated circuits. They are a major player in the electronics industry, providing components that are crucial for a wide range of electronic devices and systems. TI's products are used in numerous applications, including consumer electronics, automotive, industrial equipment, and telecommunications. The company is headquartered in Dallas, Texas, and has a global presence, with facilities and operations in multiple countries. TI is known for its innovation and contributions to the advancement of technology, particularly in areas such as analog chips, embedded processors, and digital signal processing.

Application

The SN74HC245N is an octal bus transceiver commonly used in digital electronics. Its primary application areas include:
1. Microcontroller and Microprocessor Systems: Facilitates data exchange between different parts of a system.
2. Buffering and Level Shifting: Helps in interfacing components with different voltage levels.
3. Data Sharing Between Buses: Manages bidirectional data flow between multiple buses.
4. Memory and Peripheral Interfaces: Connects memory or peripherals to processors.
5. Signal Isolation: Provides isolation to prevent signal degradation over long distances.
These applications leverage its ability to drive high-capacitive loads and enhance system reliability and performance.

Package

The SN74HC245N is a DIP (Dual In-line Package) type integrated circuit. It typically has 20 pins and is used for bus transceiver applications, facilitating bidirectional data flow with control features.

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