74ACT16863DLRG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT16863DLRG4 is an 18-bit noninverting bus transceiver with 3-state outputs, manufactured by Texas Instruments. It operates on a single 4.5V to 5.5V supply and features TTL-compatible inputs. The device utilizes EPIC (Enhanced-Performance Implanted CMOS) technology in a 56-pin shrink small-outline (DL) package. It supports asynchronous communication between data buses, allowing transmission from the A bus to the B bus or vice versa based on control logic levels.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Flow-through architecture optimizes PCB layout for high-speed applications
• Distributed VCC and GND pin configuration minimizes high-speed switching noise
• Inputs are TTL-voltage compatible for direct interfacing
• 3-state outputs drive bus lines directly without additional buffering

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• High-density memory mapping
• Clock drivers
• Bus-oriented architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the component matches the specific 'G4' ordering suffix requirements for lead-free and RoHS compliance before procurement. Confirm the package type is the 56-pin SSOP (DL). Ensure the operating temperature range aligns with the commercial grade (-40°C to 85°C) specified for the 74ACT variant rather than the military grade.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an 18-bit wide bus interface is required within a standard 5V logic system. The flow-through design simplifies board layout compared to staggered pin configurations. Consider the 24mA output drive capability for driving multiple loads on the bus. Verify that the 3-state isolation requirements match the OEAB and OEBA control signals provided by the system design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Widebus family of Texas Instruments logic devices, designed to provide higher I/O density in surface-mount packages. It is part of the 74ACT series, which offers performance comparable to LS-TTL but with CMOS power consumption characteristics. The DL package allows for twice the I/O pin count of standard SOIC packages in the same footprint.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ACT16863DLR