74ABT245CMTC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT245CMTC is an octal bidirectional transceiver with three-state outputs housed in a 20-lead Thin Shrink Small Outline Package (TSSOP). It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device provides a current sinking capability of 64 mA and a sourcing capability of 32 mA on both A and B ports. Propagation delays are specified at 1.0 ns minimum, 2.1 ns typical, and 3.6 ns maximum under standard AC test loads.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Bidirectional non-inverting buffers for bus-oriented applications
• High impedance glitch-free bus loading during power cycles
• Non-destructive hot insertion capability
• Guaranteed latchup protection

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented data communication systems
• Asynchronous two-way data transfer between buses
• High-speed digital logic interfacing

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package designation MTC20 corresponds to the required 20-lead TSSOP footprint. Confirm that the operating voltage requirements align with the +4.5V to +5.5V specification. Ensure thermal management meets the -40°C to +85°C ambient temperature rating. Check for RoHS compliance status if environmental regulations apply to the assembly process.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high drive strength is required for bus architectures. The ABT technology offers faster switching speeds compared to standard CMOS families. Verify that the 64 mA sink capability matches the load requirements of the destination bus lines. Consider the TSSOP package dimensions for PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT series of high-speed CMOS logic devices manufactured by Fairchild Semiconductor, now part of onsemi. The 74ABT family utilizes BiCMOS technology to achieve performance levels between standard TTL and advanced CMOS technologies. The CMTC suffix specifically denotes the 20-lead TSSOP physical package configuration.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other manufacturers' 74ABT245 variants in the same TSSOP-20 package. Cross-reference pinouts and electrical characteristics to ensure compatibility with existing circuit designs.