SN54LS244J

Buffers, Drivers, Receivers, Transceivers Overview

The SN54LS244J is an octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -55°C to 125°C. The device features a maximum propagation delay of 15 ns at 5 V and includes inputs tolerant down to 2 V for compatibility with 3.3-V or 2.5-V logic. It utilizes PNP inputs to reduce DC loading and incorporates hysteresis to improve noise margins.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features 3-state outputs capable of driving bus lines or buffering memory address registers
• Incorporates PNP inputs designed to reduce DC loading on bus lines
• Includes built-in hysteresis at inputs to enhance noise margins

Buffers, Drivers, Receivers, Transceivers Applications

• Servers
• LED Displays
• Network Switches
• Telecom Infrastructure
• Motor Drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package configuration, as the 'J' suffix denotes a 20-lead Ceramic Dual In-Line Package (CDIP). Confirm that the procurement source provides components compliant with MIL-PRF-38535 if space-rated performance is required, noting that production processing may not include testing of all parameters unless specified.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high fan-out and improved fan-in characteristics in mixed 3.3-V and 5-V system environments. Ensure the design accounts for the active-low output-control input behavior and verify that the thermal resistance requirements are met for the CDIP package under the intended operating conditions.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4LS24x family of octal buffers and line drivers. It is functionally related to the SN54LS240 (inverting) and SN54LS241 (non-inverting), sharing similar electrical characteristics and packaging options within the LS logic series. The SN54 prefix indicates military-grade reliability specifications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN54LS244N

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle power-up or power-down states?

To ensure the high-impedance state during power up or power down, the G pin must be tied to VCC through a pullup resistor.

What is the function of the G pin?

The G pin serves as the output-enable input; when low, data passes from A inputs to Y outputs, and when high, outputs enter the high impedance state.