MM74HCT245MTC

Buffers, Drivers, Receivers, Transceivers Overview

The MM74HCT245MTC is an octal bus transceiver manufactured by onsemi, formerly Fairchild Semiconductor. It features eight non-inverting bidirectional data paths with three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input levels with CMOS output levels. Key electrical parameters include a propagation delay of 30 ns, maximum power dissipation of 500 mW, and output currents of 7.2 mA for both high and low states. It functions in temperatures from -40°C to +85°C and is housed in a 20-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight bidirectional data transmission channels controlled by a single direction signal.
• Features three-state outputs that isolate the device when disabled.
• Compatible with standard TTL logic input levels while driving CMOS loads.

Buffers, Drivers, Receivers, Transceivers Applications

• Mobile applications requiring low power consumption and high speed
• Clock drivers for buffering timing signals
• Bus-oriented architectures for data transfer between memory modules

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer designation as onsemi due to the acquisition of Fairchild Semiconductor. Confirm the specific suffix indicates the TSSOP-20 surface mount package. Ensure compliance with RoHS directives if required by the target assembly process. Cross-reference ordering information against current onsemi catalogs to ensure availability and correct part identification.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring an octal transceiver operating at 5V logic levels. The HCT series ensures compatibility with TTL inputs, making it suitable for interfacing older digital components with modern CMOS systems. The TSSOP package offers a compact footprint for space-constrained printed circuit board layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the MM74HCT245 series of octal bus transceivers. It serves as a critical interface element in digital systems, facilitating data movement across buses. The device represents the integration of Fairchild's legacy logic portfolio into the onsemi product line following corporate restructuring.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the MM74HCT245MTCX variant which shares identical electrical characteristics but differs in packaging format. Other compatible devices within the same family may offer similar functionality with minor pinout or performance variations.