74HC245D

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74HC245D

IC TXRX NON-INVERT 6V 20SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT)
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 ~ 125°C (TA)
MountingType Surface Mount
Package/Case 20-SOIC (0.295, 7.50mm Width)

概述

Description

The 74HC245D is an octal buffer/driver with 3-state outputs, designed for use in data bus applications. It can transmit data between different parts of a system, making it essential in digital circuits for isolating and controlling multiple data sources.
The device features two 4-bit buses, allowing it to handle 8 bits of data simultaneously. It operates with a wide voltage range (2V to 6V), making it versatile for various applications. The 74HC245D has two enable pins, which control the output state; when enabled, the outputs reflect the input data, and when disabled, the outputs enter a high-impedance state.
This component is commonly used in microcontroller interfacing, where it helps manage data flow and reduce load on the driving circuits. Its high-speed capabilities (up to 25 MHz) and low power consumption make it suitable for high-performance applications. The device is widely used in communication systems, data storage, and other electronic systems requiring reliable data transmission.

Features

The 74HC245D is an octal bus transceiver with 3-state outputs, designed for high-speed data communication between devices. Key features include:
1. Bus Transceiver: Facilitates bidirectional data transfer between two buses.
2. 3-State Outputs: Outputs can be in high, low, or high-impedance states, allowing multiple devices to share the same bus.
3. Wide Supply Voltage Range: Operates on a supply voltage of 2V to 6V, making it versatile for different applications.
4. High-Speed Operation: Capable of operating at speeds up to 25 MHz.
5. Low Power Consumption: Typical power dissipation is low, enhancing energy efficiency.
6. Control Inputs: Features direction control (DIR) and enable (OE) pins for easy management of data flow.
7. Input/Output Compatibility: Compatible with TTL and CMOS logic levels, providing versatility in system integration.
8. Temperature Range: Operates effectively in a wide temperature range, suitable for various environmental conditions.
Overall, the 74HC245D is ideal for applications requiring efficient data transfer and management in digital circuits.

Package

The 74HC245D is typically available in a dual in-line package (DIP) type, specifically in a 20-pin configuration. It may also be found in surface mount packages like TSSOP or SOIC.

Pinout

The 74HC245D is an octal bus transceiver with tri-state outputs. It features a total of 20 pins.
Pin Configuration:
1. A1 to A8 (Pins 2-9): Data input pins.
2. B1 to B8 (Pins 12-19): Data output pins.
3. OE (Pin 1): Output Enable; active low. When low, enables outputs B1-B8.
4. DIR (Pin 19): Direction control. High for data transfer from A to B; low for B to A.
5. GND (Pin 10): Ground connection.
6. VCC (Pin 20): Power supply; typically +2V to +6V.
The 74HC245D is used for data buffering and direction control in applications requiring data transmission between different buses or systems.

Manufacturer

The manufacturer of the 74HC245D is Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in semiconductor design and manufacturing, particularly analog and digital signal processing solutions. Founded in 1930, the company is known for its innovation in various electronic components, including integrated circuits (ICs), microcontrollers, and sensors. TI serves a wide range of industries, including telecommunications, automotive, industrial, and consumer electronics. The 74HC245D is a high-speed CMOS octal bus transceiver, widely used in digital circuits for data transmission between different components. Texas Instruments is recognized for its commitment to quality and technological advancements, making it a key player in the electronics industry.

Application

The 74HC245D is an octal bus transceiver widely used in digital circuits for data communication between microcontrollers, microprocessors, and peripheral devices. Its main application areas include data buffering, level shifting between different voltage domains, and connecting multiple devices in parallel or serial configuration. It is commonly utilized in communication interfaces, memory expansion, and control systems where bidirectional data transfer is needed.

Equivalent

The 74HC245D is an octal bus transceiver. Equivalent products include:
1. 74HCT245
2. 74LS245
3. 74F245
4. 74VHC245
5. 74HC244 (for non-directional applications)
Ensure to check specifications for logic levels and operating conditions when substituting.

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