74HC245D

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74HC245D

+BOM

IC TXRX NON-INVERT 6V 20SOIC

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Specifications

Attribute Value
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)

Overview

Description

The 74HC245D is an integrated circuit from the 74HC series, functioning as an octal (8-bit) transceiver with three-state outputs. It is used for bidirectional data transfer between buses, making it ideal for interfacing data buses with different voltage levels. The device features two-way data flow control with a direction pin (DIR) to select the direction of data transmission and an output enable pin (OE) to disable the outputs, thereby allowing connection of multiple devices to a common bus without interference.
Key characteristics include high-speed CMOS technology, low power consumption, and compatibility with TTL logic levels. The IC operates at a supply voltage range of 2V to 6V and is capable of handling standard bus drive loads. The three-state outputs can drive up to 15 LSTTL loads. The 74HC245D is packaged in various formats, such as SOIC or TSSOP, making it suitable for different types of circuit board assemblies. Its versatility and robustness make it a staple in digital systems requiring efficient bus communication.

Equivalent

The 74HC245D is an octal bus transceiver with 3-state outputs. Equivalent products include the 74LS245, 74HCT245, and 74ACT245. These chips have similar functionalities, offering bidirectional data transmission between two buses with control functions. Always check the electrical characteristics and pin configurations in the datasheets to ensure compatibility for your specific application.

Features

The 74HC245D is a high-speed silicon-gate CMOS device functioning as an 8-bit transceiver with three-state outputs. It features:
1. Bidirectional Data Flow: Allows data transmission in both directions between buses.
2. Three-State Outputs: Permits bus interfacing without external components.
3. High-Speed Operation: Offers fast switching capabilities, ideal for quick data transfers.
4. Wide Voltage Range: Operates from 2V to 6V, making it suitable for various applications.
5. Low Power Consumption: Consumes minimal power, enhancing efficiency.
6. Input Levels: Compatible with TTL voltage levels for easy integration.
7. Enable Control (OE): Provides output control, enabling or disabling the transceiver function.
8. Direction Control (DIR): Determines the data flow direction.
9. Latch-Up Performance: Exhibits excellent immunity to latch-up.
10. ESD Protection: Includes electrostatic discharge protection for device reliability.
These features make the 74HC245D a versatile choice for buffering and driving data lines in digital systems.

Pinout

The 74HC245D is an octal bus transceiver with 3-state outputs. It features 20 pins in total. Here's a brief overview of its pin count and functions:
- Pins 1 & 19: Direction (DIR) and Output Enable (OE) control pins, respectively. DIR controls the direction of data flow, and OE enables or disables the outputs.

- Pins 2-9: Data input/output pins (A0-A7), which are bidirectional, allowing data to move to and from the A bus.
- Pins 11-18: Data input/output pins (B0-B7), which are bidirectional, allowing data to move to and from the B bus.
- Pin 10: Ground (GND) pin.
- Pin 20: Supply voltage (VCC) pin.
The 74HC245D is used for interfacing data buses with different voltage levels and directions, providing efficient data handling in digital circuits.

Manufacturer

The 74HC245D is manufactured by Nexperia. Nexperia is a global semiconductor company known for its expertise in producing discrete, logic, and MOSFET devices. The company was originally part of NXP Semiconductors but became an independent entity in 2017. Nexperia focuses on efficiency and performance, catering to the automotive, industrial, and consumer markets. It is headquartered in Nijmegen, the Netherlands, and operates worldwide.

Application

The 74HC245D is a high-speed CMOS octal bus transceiver with 3-state outputs, used primarily for interfacing between different parts of a digital system. Its applications include facilitating data exchange between microprocessors and peripherals, serving as a bus driver for data buses, enabling bidirectional data transfer between systems, and acting as a buffer to enhance signal integrity by isolating capacitive loads. It is also used in memory and I/O port expansion, and in systems requiring controlled data flow direction. Its high-speed performance and low power consumption make it suitable for various digital communication systems and logic-level interfacing.

Package

The 74HC245D is an octal bus transceiver with 3-state outputs. It typically comes in a small outline integrated circuit (SOIC) package. This package type is surface-mounted and is often used for applications requiring a compact design.

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