TC74HC540AF

Name: TC74HC540AF
Brand: Toshiba
Rating: 4.5 (10 reviews)
Author: Lisleapex

High-speed, high-current buffer amplifier for data transmission lin

5,519 Effective Inventory

TC74HC540AF

Effective Inventory5,519

High-speed, high-current buffer amplifier for data transmission lin

Manufacturer Part # : TC74HC540AF
Package/Case: SOP-20
Part Status : ACTIVE
Brand: Toshiba
Product Categories : Buffers, Drivers, Receivers, Transceivers

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TC74HC540AF DataSheet

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TC74HC540AF Details

The TC74HC540AF is an octal buffer/line driver IC from Toshiba Semiconductor, designed for use in various digital electronic applications. This device features eight buffer channels with 3-state outputs, allowing for efficient signal amplification and isolation. With high-speed operation and low power consumption, the TC74HC540AF is suitable for applications requiring reliable signal buffering and driving capabilities.

Pinout

1 (OE): Output Enable
2-9 (Y0-Y7): Data Inputs/Outputs
10 (GND): Ground
20 (VCC): Positive Power Supply

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Octal Buffer: Provides eight channels of buffering for signal transmission.
3-State Outputs: Allows for efficient control of output states.
High-Speed Operation: Offers fast data transmission for responsive applications.
Low Power Consumption: Designed for energy-efficient operation.
Wide Operating Voltage Range: Supports a wide voltage range for versatile applications.

Application

Digital Signal Processing: Ideal for buffering and driving signals in digital systems.
Microcontroller Interfaces: Used for interfacing with microcontrollers and peripheral devices.
Printed Circuit Board Layouts: Suitable for signal routing on PCBs for efficient data transmission.

Where to Use

The TC74HC540AF is ideal for applications requiring signal buffering and driving capabilities, such as digital signal processing, microcontroller interfacing, and PCB signal routing. It is suitable for systems that demand high-speed operation and efficient signal management.

How to Use

Connect the TC74HC540AF to your digital circuit by providing power supply to VCC and connecting the data inputs/outputs (Y0-Y7) as needed. Use the OE pin to enable or disable the outputs as required. Ensure proper signal integrity and voltage levels for reliable operation. Refer to the datasheet for detailed usage instructions.

Application Circuit

The application circuit diagram for the TC74HC540AF illustrates how to integrate the buffer/line driver IC into your digital system. It shows connections for power supply, data lines, and control signals, ensuring proper signal buffering and driving functionality.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

SN74HC540: A comparable octal buffer/line driver IC from Texas Instruments with similar features.
74HCT540: An alternative buffer/line driver IC offering compatibility with CMOS logic levels.

Complementary

The TC74HC540AF can be complemented by the TC74HC541AF, which provides additional buffer channels for expanded signal management capabilities. Combining these devices can enhance signal routing and isolation in complex digital systems.

When selecting complementary buffer/line driver ICs, ensure compatibility and proper signal matching for seamless integration and operation.

Frequently Asked Questions

Q: What is the output enable pin used for in the TC74HC540AF?

A: The output enable (OE) pin controls the activation of the output buffers, allowing for tri-state operation and bus sharing in multi-device systems.

Q: Can the TC74HC540AF operate at different voltage levels?

A: The TC74HC540AF supports a wide operating voltage range, making it compatible with various digital systems using standard logic levels.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code	Yes	Part Life Cycle Code	Obsolete
Part Package Code	SOIC	Pin Count !	20
HTS Code !	8542.39.00.01	Control Type	ENABLE LOW
Family	HC/UH	JESD-30 Code	R-PDSO-G20
Length	12.8 mm	Load Capacitance (CL)	150 pF
Logic IC Type	BUS DRIVER	Max I(ol)	0.006 A
Number of Bits	8	Number of Functions	1
Number of Ports !	2	Number of Terminals	20
Operating Temperature-Max	85 °C	Operating Temperature-Min	-40 °C
Output Characteristics	3-STATE	Output Polarity	INVERTED
Package Body Material	PLASTIC/EPOXY	Package Code	SOP
Package Equivalence Code	SOP20,.3	Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE	Packing Method	TUBE
Peak Reflow Temperature (Cel)	NOT SPECIFIED	Power Supplies !	2/6 V
Prop. Delay@Nom-Sup	23 ns	Propagation Delay (tpd)	165 ns
Qualification Status !	Not Qualified	Seated Height-Max	1.8 mm
Supply Voltage-Max (Vsup)	6 V	Supply Voltage-Min (Vsup)	2 V
Supply Voltage-Nom (Vsup)	4.5 V	Surface Mount !	YES
Technology	CMOS	Temperature Grade !	INDUSTRIAL
Terminal Form !	GULL WING	Terminal Pitch !	1.27 mm
Terminal Position	DUAL	Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Width	5.3 mm	Product Category !	Buffers & Line Drivers
Brand	Toshiba	Product Type !	Buffers & Line Drivers
Series	TC74HC540	Subcategory	Logic ICs

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification TC74HC540AF PDF Download

FAQs

What is TC74HC540AF?

The TC74HC540AF is an octal buffer/line driver designed by Toshiba. It is a high-speed CMOS device that features 3-state outputs, making it suitable for bus-oriented applications, such as data buses and address buses in digital systems.

How Does TC74HC540AF Work?

The TC74HC540AF works by buffering and driving digital signals with high speed and efficiency. It can be used to isolate and control the flow of data on a bus by enabling or disabling the outputs, providing flexibility in data communication between different components of a digital system.

How Many Pins does TC74HC540AF have and What are the Functions of the Pinout Configuration?

The TC74HC540AF is housed in a 20-pin SOP (Small Outline Package) package. The pinout configuration includes:

GND: Ground pin.
OE: Output enable input pin.
A1 - A8: Data input/output pins.
B1 - B8: Buffered output pins.
VCC: Power supply pin.

What are the Pros and Cons of TC74HC540AF?

Pros:

High Speed: Operates as a high-speed CMOS device, suitable for fast data communication.
3-State Outputs: Provides 3-state outputs for flexible bus control.
Low Power Consumption: Offers low power dissipation, making it suitable for battery-powered devices.
Wide Operating Voltage Range: Supports a wide supply voltage range for versatile applications.
Robust Design: Features ESD protection, enhancing reliability in harsh operating environments.

Cons:

Complexity: Requires understanding of bus protocols and control logic for proper implementation.
Bus Contention: Care must be taken to avoid bus contention when multiple devices are connected to the same bus.
Additional Components: May require pull-up or pull-down resistors for proper bus operation in certain configurations.

Are There Any Equivalents/Alternatives to TC74HC540AF for Recommendation?

The SN74HC240 from Texas Instruments is a similar octal buffer/line driver with 3-state outputs.
Alternatives to the TC74HC540AF include the MC74HC540A from ON Semiconductor and the HD74HC540 from Renesas Electronics.