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SN74HC240DWR

Name: SN74HC240DWR
Rating: 4.7 (12 reviews)

IC BUFFER INVERTING 6V 20-SOIC

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資料表 SN74HC240DWR DataSheet
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規格

Series	74HC
Part Status	Active
Logic Type	Buffer, Inverting
Number of Elements	2
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	7.8mA, 7.8mA
Voltage - Supply	2V ~ 6V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package	20-SOIC
Base Product Number	74HC240

概述

Description

The SN74HC240DWR is a high-speed hex buffer/driver from Texas Instruments, part of the 74HC series of logic devices. It features six independent non-inverting buffers, designed to provide high drive capabilities while ensuring low power consumption. The device can operate at high speeds, with a maximum propagation delay of 6.5 ns at 5V, making it suitable for fast digital circuits.
The SN74HC240DWR is characterized by its wide voltage operating range (2V to 6V), making it versatile for various applications. Each buffer can accept standard TTL input levels, allowing for seamless integration with other TTL or CMOS logic families.
The device is available in a Dil-type 20-pin package (DWR), which makes it easy to incorporate into PCB designs. Key applications include signal buffering, level shifting, and driving capacitive loads in digital systems.
Overall, the SN74HC240DWR is ideal for enhancing signal integrity in high-speed environments while maintaining compatibility with various digital logic systems.

Features

The SN74HC240DWR is a hex buffer/driver featuring open-drain outputs, designed for high-speed operation with TTL compatibility. Key features include:
1. Hex Buffer: Contains six independent buffers, each capable of driving low-impedance loads.
2. Open-Drain Outputs: Allows for wired-AND configurations, enabling multiple devices to share a common output line.
3. High Speed: Operates at a maximum speed of 6 ns with a 5V supply, making it suitable for fast digital applications.
4. Wide Voltage Range: Supports operation from 2V to 6V, accommodating various logic levels.
5. Low Power Consumption: Consumes minimal power in both active and standby modes.
6. High Noise Immunity: Features a high noise margin, enhancing reliability in noisy environments.
7. Package Options: Available in a SOIC-20 package, facilitating easy integration into compact designs.
This makes the SN74HC240DWR ideal for applications in digital signal buffering and interfacing in mixed-voltage systems.

Package

The SN74HC240DWR is packaged in a TSSOP (Thin Shrink Small Outline Package), specifically featuring a 20-pin configuration.

Pinout

The SN74HC240DWR is an octal buffer/driver with three-state outputs. It features a total of 20 pins. The primary functions include:
- Data Inputs (A1-A8): Pins 1-8 receive the input data.
- Output Enable (OE): Pin 9 controls the outputs' enable state. When LOW, the outputs are enabled; when HIGH, the outputs are in a high-impedance state.
- Data Outputs (Y1-Y8): Pins 11-18 provide the buffered output signals corresponding to the inputs.
- GND: Pin 10 connects to ground.
- VCC: Pin 20 is the power supply pin, typically connected to +2V to +6V.
This device is commonly used in digital circuits for signal buffering and level shifting.

Manufacturer

The SN74HC240DWR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including integrated circuits (ICs), microcontrollers, and analog devices. Founded in 1930, TI is known for its innovations in the field of electronics and serves various industries, including automotive, industrial, communications, and consumer electronics. The company is particularly recognized for its expertise in analog and embedded processing technologies.

Application

The SN74HC240DWR is a hex buffer/driver with 3-state outputs, commonly used in digital logic applications. Its primary areas of application include data buffering, signal amplification, and interfacing between different logic levels. It is suitable for use in communication systems, computer peripherals, and various digital circuits where reliable signal transmission and isolation are required.

Equivalent

The SN74HC240DWR is a hex buffer/driver with three-state outputs. Equivalent products include:
1. 74HC240 (DIP, SOIC variants)
2. SN74HCT240 (HCT series for TTL compatibility)
3. 74HCT240 (DIP, SOIC variants)
These chips share similar functionalities, but check specific datasheets for pin configurations and electrical characteristics.