MC74AC244DTR2G

Overview

The MC74AC244DTR2G is an octal buffer and line driver manufactured by onsemi, belonging to the AC logic series. It features eight non-inverting channels with three-state outputs housed in a TSSOP-20 surface-mount package. The device operates within a supply voltage range of 2 V to 6 V, drawing a maximum operating current of 80 uA and exhibiting a static current of 8 uA. Output drive capability includes 24 mA for both high and low states, with a power dissipation rating of 200 mW. Propagation delays are specified at 9 ns at 3.3 V and 7 ns at 5 V. It functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Provides eight non-inverting signal paths with independent control via three-state output enable pins.
• Supports wide supply voltage operation ranging from 2 V to 6 V for flexible system integration.
• Delivers strong output drive currents of 24 mA to ensure signal integrity across loads.

Applications

• Memory module address and data bus buffering
• Clock distribution networks requiring high fan-out
• Portable equipment utilizing battery-powered low-voltage logic

Procurement Notes

Verify the specific suffix DTR2G confirms the TSSOP-20 package and reel packaging configuration. Ensure the AC logic family specifications align with the target circuit requirements rather than HCT or LVC variants. Confirm RoHS compliance status through official manufacturer documentation prior to finalizing procurement orders.

Selection Notes

Select this component when eight buffered channels are required within a compact surface-mount footprint. The AC series offers a balance between speed and power consumption suitable for general-purpose digital applications. Verify that the 2 V to 6 V operating range covers all intended supply rails in the design.

Part Context

This part belongs to the MC74AC244 family of octal buffers. It shares functional similarities with other octal drivers but differs in electrical characteristics based on the specific logic sub-family. The DTR2G designation indicates a tape-and-reel format optimized for automated assembly processes.

Replacement Considerations

MC74AC244DWG serves as a pin-compatible alternative in a SOIC-20 tube package. Other members of the MC74AC244 family may offer different packaging or environmental ratings while maintaining identical logical functionality.