SN74ABTH18652APM

Specialty Logic Overview

The SN74ABTH18652APM is an 18-bit universal bus transceiver from the Texas Instruments 74ABTH series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. The device features three-state outputs and is housed in a 64-pin LQFP package designed for surface-mount installation. It functions as a specialty logic component with non-inverting polarity, suitable for high-speed data transfer applications requiring robust electrical characteristics.

Specialty Logic Feature Summary

• Provides 18-bit bidirectional data transmission capability via universal bus architecture
• Supports TTL-compatible input and output signal levels for broad interface compatibility
• Features three-state outputs to facilitate direct connection to system buses without external drivers

Specialty Logic Applications

• High-speed data bus interfaces in industrial control systems
• Memory expansion modules requiring wide data paths
• Communication gateways connecting microprocessors to peripheral devices

Specialty Logic Procurement Notes

Verify the specific suffix 'APM' against the manufacturer's current datasheet to confirm pinout and package dimensions. Ensure the operating environment remains within the specified -40 °C to +85 °C temperature range. Confirm that the 5 V supply voltage aligns with the target system design requirements before integration.

Specialty Logic Selection Notes

Select this component when an 18-bit wide data path is required at 5 V logic levels. It serves as a direct replacement for standard 74ABT bus transceivers where higher density is needed. Consider the LQFP-64 footprint during PCB layout planning to ensure adequate clearance and thermal management for the surface-mount package.

Specialty Logic Part Context

This part belongs to the Texas Instruments 74ABTH family, which combines ABT speed with HCT/TTL compatibility. The 18-bit configuration distinguishes it from common 8-bit or 16-bit variants, offering reduced component count for wide-bus designs. It is categorized under specialty function logic rather than standard gate arrays.

Specialty Logic Replacement Considerations

Check for equivalent parts such as the SN74ABTH18652ADBR if tape-and-reel packaging is preferred over trays. Verify functional compatibility with other 18-bit ABT transceivers from different manufacturers only if pinouts match exactly.