74HC244DTR2G

Overview

The onsemi 74HC244DTR2G is an octal 3-state noninverting buffer and line driver manufactured using high-performance silicon-gate CMOS technology. It operates within a DC supply voltage range of 2.0 V to 6.0 V and supports an operating temperature from -55°C to +125°C. The device features two active-low output enables, driving up to 15 LSTTL loads with propagation delays ranging from 96 ns at 2.0 V to 15 ns at 6.0 V. Packaged in a TSSOP-20 housing, it includes ESD protection rated at 2000 V (HBM) and complies with JEDEC Standard No. 7A.

Feature Summary

• Octal 3-state noninverting buffering architecture with dual active-low enable controls
• High noise immunity and low input current characteristics inherent to CMOS design
• Direct interface capability with CMOS, NMOS, and TTL logic families
• Robust electrostatic discharge protection meeting HBM 2000 V standards

Applications

• Memory address drivers
• Clock signal distribution
• Bus-oriented system interconnects

Procurement Notes

Verify the specific ordering suffix 'DTR2G' corresponds to the TSSOP-20 package and tape-and-reel shipping configuration. Confirm that the procurement matches the Pb-Free designation and ensure the component meets the required RoHS compliance standards for the intended manufacturing process.

Selection Notes

Select this component when an octal buffer with 3-state control is required for bus systems. Ensure the application voltage falls between 2.0 V and 6.0 V. Consider the -55°C to +125°C temperature range for industrial environments. Verify that the TSSOP-20 footprint aligns with the PCB layout constraints.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It shares pinout compatibility with the LS244 variant while offering improved speed and lower power consumption typical of HC technology. The device functions similarly to the HC240A but provides noninverting outputs rather than inverting ones.

Replacement Considerations

MC74HC244ADTR2G