Mfr Part #:

TC74ACT540F

Mfr Name: Toshiba

The Toshiba TC74ACT540F is an 8-channel inverting octal bus buffer with 3-state outputs. It operates from a 4.5V to 5.5V supply and offers a typical propagation delay of 4.3 ns.

✓ Total Stock: 2,700 pcs

TC74ACT540F Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	2,700 pcs On Request	2700 pcs	On Request	1	On Request	On Request	9821+	On Request	On Request

TC74ACT540F Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Toshiba
Lead Style	Gull-Wing
Mounting Type	Surface Mount
Number of Channels	8
Number of Inputs	8
Number of Outputs	8
Package / Case	SOP

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TC74ACT540F Description

Short technical summary and product information.

The TC74ACT540F from Toshiba is an advanced high-speed CMOS octal bus buffer featuring inverting, 3-state outputs. Fabricated with silicon gate and double-layer metal wiring C2MOS technology, it achieves high-speed operation comparable to bipolar Schottky TTL while maintaining low CMOS power dissipation.

This device is suitable for interfacing TTL or NMOS to High Speed CMOS, with inputs compatible with TTL, NMOS, and CMOS output voltage levels. The TC74ACT540F has 8 channels and operates with a supply voltage range of 4.5V to 5.5V. Key electrical characteristics include a typical propagation delay of 4.3 ns at 5V, a maximum quiescent current of 8 µA at 25°C, and symmetrical output impedance allowing it to drive 50 Ω transmission lines.

The TC74ACT540F is available in a 20-pin SOP surface mount package. Its inputs are protected against static discharge or transient excess voltage. When either 1G or 2G input signals are high, the terminal outputs enter a high-impedance state.

TC74ACT540F Quick Information

Product Type: Octal Bus Buffer

Series: TC74ACT

Canonical Name: TC74ACT540F Octal Bus Buffer, Inverting, 3-State Outputs

Subcategory: Logic

TC74ACT540F Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

TC74ACT540F Features

8-channel inverting octal bus buffer
High-speed CMOS technology
4.5V to 5.5V operating supply voltage
Typical propagation delay of 4.3 ns
Surface mount 20-pin SOP package

TC74ACT540F Applications

Suitable for bus line driving applications.
Used in memory address driver circuits.
Ideal for high-speed logic signal buffering.
Compatible with TTL logic level interfaces.

TC74ACT540F FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the TC74ACT540F?

The TC74ACT540F operates over a supply voltage range of 4.5V to 5.5V, with a typical operating voltage of 5V.

What is the propagation delay of the TC74ACT540F?

The typical propagation delay is 4.3 ns at VCC = 5V. The maximum propagation delay is 8.3 ns under maximum load conditions.

What is the operating temperature range of the TC74ACT540F?

The TC74ACT540F operates over a temperature range of -40°C to 85°C.

What package is the TC74ACT540F available in?

The TC74ACT540F is available in a 20-pin SOP (Small Outline Package) for surface mount mounting.

What is the output drive capability of the TC74ACT540F?

The TC74ACT540F provides a minimum symmetrical output drive current of 24 mA for both high and low levels.

Is the TC74ACT540F compatible with TTL logic levels?

Yes, the TC74ACT540F is compatible with TTL outputs, with a VIL of 0.8V maximum and a VIH of 2.0V minimum.

What is the quiescent current of the TC74ACT540F?

The maximum quiescent current is 8 µA at 25°C.