74LVC1G240DCKTG4

Overview

The SN74LVC1G240DCKTG4 is a single buffer and line driver from Texas Instruments, belonging to the LVC logic family. It features one input and one output with inverting polarity. The device utilizes a SC-70-5 (DCK) surface-mount package. It operates within a supply voltage range of 1.65 V to 3.6 V. Key electrical parameters include a high-level output current of -32 mA and a low-level output current of 32 mA. The static supply current is typically 10 µA. The propagation delay is specified at 4.5 ns when operating at 3.3 V. The component supports a three-state output and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides signal buffering and line driving capabilities for digital circuits
• Features inverting logic polarity for signal inversion applications
• Supports three-state output operation for bus-oriented systems
• Designed for low-voltage operation compatible with modern CMOS standards

Applications

• Mobile phone applications requiring compact logic solutions
• PDA and portable electronic devices
• Handheld terminals
• General-purpose digital signal processing interfaces

Procurement Notes

Verify the complete part number including the G4 suffix, which indicates lead-free status and RoHS compliance. Confirm the specific tape-and-reel quantity associated with the DCKT packaging variant during ordering. Ensure the design environment supports the 1.65 V to 3.6 V operating range. Check for any specific handling requirements related to the small outline package. Cross-reference the datasheet revision date to ensure alignment with current manufacturing specifications.

Selection Notes

Select this component when a single-channel inverting buffer is required in a space-constrained design. The SC-70-5 package offers a minimal footprint suitable for dense PCB layouts. Consider the 3.6 V maximum supply voltage limit; if higher voltages are needed, explore other LVC or AUC series options. The inverting nature distinguishes it from non-inverting buffers like the 1G125. Evaluate the 4.5 ns propagation delay against system timing requirements to ensure adequate performance margins.

Part Context

This device is part of the SN74LVC1G240 family of single buffer/drivers. It shares functional similarities with the SN74LVC1G240DCKR but includes the G4 suffix denoting environmental compliance. It differs from the non-inverting SN74LVC1G125 series by providing inverted output logic. The DCK package variant provides a smaller form factor compared to larger SOIC or SON packages available within the same logical function family.

Replacement Considerations

The SN74LVC1G240DCKR is a direct pin-compatible alternative without the G4 suffix. For non-inverting applications, the SN74LVC1G125 series serves as a functional substitute with identical pinouts. Higher speed variants such as the SN74AUC1G240 may be considered if faster propagation delays are required, though voltage ranges and power consumption will differ.