SN74ACT1284DBR

Specialty Logic Overview

The SN74ACT1284DBR is a specialized bus interface integrated circuit manufactured by Texas Instruments. It provides seven-bit bidirectional data transfer with three-state outputs, designed to comply with the IEEE-1284 standard for parallel port communication. The device operates within a supply voltage range of 4.7 V to 5.5 V and features Schmitt trigger inputs for noise immunity. It is housed in a 20-pin TSSOP package suitable for surface-mount applications.

Specialty Logic Feature Summary

• Supports bidirectional data transfer compliant with IEEE-1284 standards
• Features three-state outputs for efficient bus line sharing
• Incorporates Schmitt trigger inputs to enhance signal integrity

Specialty Logic Applications

• Parallel printer interfaces
• High-speed data acquisition systems
• Industrial control equipment requiring standardized parallel communication

Specialty Logic Procurement Notes

Verify the specific suffix 'DBR' corresponds to the TSSOP-20 package and tape-and-reel orientation before ordering. Confirm that the component meets the required RoHS compliance status for your region, as lead-free variants may have different suffixes. Ensure the operating temperature range aligns with your system's environmental specifications.

Specialty Logic Selection Notes

Select this component when designing systems requiring robust parallel data transmission between peripherals and controllers. The ACT logic family offers faster switching speeds compared to standard LS or HC series devices. Consider the TSSOP package constraints regarding PCB space and thermal dissipation requirements during layout.

Specialty Logic Part Context

This part belongs to the SN74ACT1284 series of bus interface transceivers. It serves as a bridge between microprocessors and high-speed parallel peripherals. The device simplifies the design of complex digital systems by handling protocol-specific signaling requirements inherent to IEEE-1284 implementations.