74LVC244APW,112

Overview

The Nexperia 74LVC244APW,112 is an octal buffer and line driver featuring 3-state outputs. It operates within a supply voltage range of 1.2 V to 3.6 V. The device includes two output enable inputs (1OE and 2OE), each controlling four outputs. Inputs are overvoltage tolerant up to 5.5 V. It supports partial power-down mode via IOFF circuitry. The component is housed in a TSSOP20 package (SOT360-1) and is specified for ambient temperatures from -40 °C to +125 °C.

Feature Summary

• Provides 8-bit buffering with independent 3-state control for two groups of four outputs
• Features Schmitt-trigger action at all inputs for tolerance of slower signal transitions
• Includes IOFF circuitry to prevent backflow current during partial power-down conditions
• Accepts direct interface with TTL levels and tolerates input voltages up to 5.5 V

Applications

• Translating signals between mixed 3.3 V and 5 V logic environments
• Clock drivers and buffer circuits for high-speed data transmission
• Memory address drivers and data bus-oriented communications

Procurement Notes

Verify the specific suffix 'PW,112' corresponds to the TSSOP20 plastic thin shrink small outline package (SOT360-1). Confirm the absence of the 'H' variant, which indicates bus hold functionality not present in this standard LVC version. Ensure the ordering code matches the required temperature range and package dimensions before finalizing procurement.

Selection Notes

Select this component when an octal non-inverting buffer with 3-state outputs is required for low-voltage applications. It is suitable for designs needing wide supply voltage flexibility between 1.2 V and 3.6 V. Choose this part over LVCH variants if bus hold functionality on data inputs is not necessary for the specific application design.

Part Context

This component belongs to the 74LVC/LVCH244A family of octal buffers. It shares functional similarities with other 74-series logic devices but is optimized for low-voltage CMOS operation. The APW suffix denotes the specific TSSOP20 packaging format used for surface-mount assembly.

Replacement Considerations

Check for 74LVCH244APW,112 if bus hold features are acceptable or required. Verify pinout compatibility with alternative octal buffer packages such as SO20 or DHVQFN20 versions within the same logical family.