SNJ54ABT240FK

Buffers, Drivers, Receivers, Transceivers Overview

The SNJ54ABT240FK is an octal buffer and line driver featuring three-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 free-air temperature range from -55°C to 125°C. The device is housed in a 20-pin LCCC (FK) package. It provides high-drive outputs with a maximum high-level output current of -32 mA and a low-level output current of 64 mA. Switching characteristics at VCC = 5 V include propagation delays ranging from 0.8 ns to 5.5 ns.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports partial-power-down mode via Ioff circuitry to prevent damaging backflow currents
• Features latch-up performance exceeding 500 mA per JEDEC standard JESD-17
• Provides ESD protection exceeding 2000-V human-body model and 200-V machine model standards

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus-oriented receivers and transmitters

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix FK corresponds to the Leadless Ceramic Chip Carrier package when sourcing. Confirm that the component meets MIL-PRF-38535 requirements if applicable, as parameter testing protocols differ for these products compared to standard commercial grades. Ensure compatibility with the specified -55°C to 125°C operating temperature range for your application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring robust bus driving capabilities with high noise immunity. The ABT logic family offers improved performance over standard TTL. Consider the separate active-low output-enable inputs for flexible control schemes. Verify that the 20-pin LCCC footprint matches your PCB design guidelines and thermal management requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN54ABT240 series of octal buffers/drivers with three-state outputs. It is designed to improve performance and density in digital systems. The SN54 prefix indicates military-grade specifications and extended temperature ranges, distinguishing it from the commercial SN74 variants.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SNJ54ABT240J

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial-power-down conditions?

The device includes Ioff circuitry that disables the outputs when powered down, preventing damaging current backflow through the device.

What is the organization of the internal buffers?

The device is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs.