74ABT2244CMTCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT2244CMTCX is an octal buffer and line driver from the ABT logic series, 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 features non-inverting outputs with three-state capability and incorporates internal 25Ω series resistors. Key electrical parameters include a propagation delay of up to 4.4 ns at 5V, high-level output current of -32 mA, and low-level output current of 15 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates 25Ω series resistors in the outputs to reduce signal ringing and eliminate the need for external components.
• Provides high-impedance, glitch-free bus loading throughout the entire power-up and power-down cycle.
• Supports nondestructive hot-insertion capabilities for system maintenance.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving capacitive inputs of MOS memory drivers
• Address drivers
• Clock drivers
• Bus-oriented transmitters and receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the component corresponds to the TSSOP-20 package variant designated by the CMTC suffix. Confirm the specific revision level required for your design, as specifications may vary between manufacturing updates. Ensure compatibility with the recommended operating conditions, specifically the 4.5V to 5.5V supply voltage range, before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving high-capacitance loads such as memory buses or clock lines where signal integrity is critical. The integrated 25Ω resistors make it suitable for applications requiring reduced ringing without additional discrete components. Ensure the design accommodates the ABT series speed characteristics and the specific 5V supply voltage requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT2244 family of octal buffers and line drivers manufactured originally by Fairchild Semiconductor and now distributed by onsemi. The CMTCX designation indicates the TSSOP-20 package with tape and reel packaging. It is part of the broader ABT logic family designed for high-speed digital applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalent parts from other manufacturers offering the same octal buffer configuration with integrated series resistors. Verify pinout compatibility and electrical parameter alignment, particularly propagation delay and output drive strength, before substituting.