SN74S244DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74S244DWR is an octal buffer and line driver manufactured by Texas Instruments, belonging to the SN74S logic series. It features eight non-inverting inputs and outputs with three-state capability, housed in a 20-pin SOIC (DW) surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a commercial temperature range of 0°C to 70°C. Key electrical characteristics include bipolar technology construction, high output drive strength suitable for bus-oriented systems, and propagation delay specifications typical of Schottky-clamped transistor-transistor logic.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent non-inverting buffer channels
• Three-state outputs enabling direct connection to system buses without additional logic
• Schottky-clamped bipolar design ensuring high-speed switching performance

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and I/O mapping systems
• Clock drivers and buffer circuits
• High-speed data transmission lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 20-pin SOIC footprint matches the target PCB layout dimensions. Ensure the operating environment remains within the specified 0°C to 70°C commercial temperature range to maintain guaranteed electrical parameters. Cross-reference the manufacturer date code to ensure component freshness and reliability standards are met for the intended application lifecycle.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed buffering is required for 5V logic systems using bipolar technology. The SN74S series offers faster propagation delays compared to standard LS or HC families but consumes more power. Consider the three-state feature for bidirectional bus applications where multiple devices share a common data path. Evaluate thermal management requirements due to the higher quiescent current inherent in Schottky bipolar designs compared to CMOS alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74S family of Schottky TTL logic devices. The SN74S244 specifically provides octal buffering with three-state outputs, distinguishing it from the non-three-state SN74S245 or the lower-power SN74LS244 variants. The 'DWR' designation indicates the SOIC-20 package with reel packaging, differentiating it from the 'DW' variant which may use cut-tape or tray packaging depending on distributor specifics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: SN74S244DR.