SN74HC245N

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SN74HC245N

IC TXRX NON-INVERT 6V 20DIP

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規格

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)

概述

Description

The SN74HC245N is an octal bus transceiver designed for high-speed data transmission between devices in a digital circuit. It features eight input/output pins that can operate in both sending and receiving modes, making it suitable for bidirectional data flow. The device is part of Texas Instruments' 74HC series, known for high-speed CMOS logic levels and low power consumption.
Key characteristics include a wide operating voltage range (2V to 6V), high-speed operation (up to 25 MHz), and compatibility with TTL logic levels. The SN74HC245N offers three-state outputs, allowing multiple devices to share the same data bus without interference.
Control pins, including the direction control and output enable, manage data flow, ensuring proper operation in various configurations. This makes the SN74HC245N ideal for applications in microprocessor interfacing, data communication, and systems requiring flexible data routing. Its robust design and versatility make it a popular choice in both hobbyist and professional electronic projects.

Features

The SN74HC245N is a high-speed CMOS octal bus transceiver designed for bidirectional data communication. Key features include:
1. Data Direction Control: It allows data transmission in both directions, controlled by the direction pin.
2. High-Speed Operation: Capable of operating at speeds up to 25 Mbps, making it suitable for high-speed applications.
3. Wide Voltage Range: Operates on a supply voltage range of 2V to 6V, ensuring compatibility with various logic levels.
4. Low Power Consumption: Consumes minimal power in both static and dynamic conditions, ideal for battery-powered applications.
5. Bus Hold Feature: Includes bus-hold circuitry that prevents floating inputs, enhancing noise immunity.
6. Tri-State Outputs: Outputs can be placed in a high-impedance state, allowing multiple devices to connect to a common bus.
7. ESD Protection: Designed with robust ESD protection, ensuring reliability in various environments.
These features make the SN74HC245N suitable for data bus applications in computer systems, communication equipment, and industrial control systems.

Package

The SN74HC245N is typically packaged in a DIP-20 (Dual In-Line Package with 20 pins) configuration. This package allows for easy integration into breadboards and through-hole PCB designs.

Pinout

The SN74HC245N is an octal bus transceiver with 3-state outputs, designed for high-speed data transmission. It has a total of 20 pins.
Pin Count and Functions:
- Pins 1-8: Data input/output (A1-A8, B1-B8) for bidirectional data transfer.
- Pin 9: GND (Ground).
- Pin 10: DIR (Direction control) determines the direction of data flow; HIGH for A to B, LOW for B to A.
- Pin 11: OE (Output Enable) controls the 3-state outputs; active LOW.
- Pins 12-19: Data input/output (B1-B8) for bidirectional data transfer.
- Pin 20: VCC (Power supply).
The device facilitates the transfer of data between two buses, allowing for effective communication in digital circuits, especially in applications like data buffers and memory interfaces.

Manufacturer

The SN74HC245N is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments designs and produces a wide range of semiconductors and integrated circuits, including analog, digital signal processing, and embedded processing solutions. Founded in 1930, the company has a significant presence in the electronics industry, particularly in areas such as automotive, industrial, communication, and consumer electronics. TI is well-regarded for its innovation and commitment to providing high-quality products and solutions for various applications.

Application

The SN74HC245N is an octal bus transceiver used in various applications, including data communication between microcontrollers and peripheral devices, signal buffering and level shifting, and parallel data transfer in digital systems. It is commonly employed in computer systems, automotive electronics, industrial automation, and communication devices to enable bidirectional data flow while maintaining signal integrity.

Equivalent

The SN74HC245N is an octal bus transceiver. Equivalent products include:
1. 74HC245 (various manufacturers)
2. 74HCT245 (TTL-compatible version)
3. 74LS245 (low-power Schottky version)
4. MC74HC245 (Motorola)
5. 74AHC245 (high-speed version)
Check specific datasheets for compatibility in voltage levels and timing characteristics.

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