74ACT11286DR

Overview

The SN74ACT11286DR is a 9-bit addressable latch featuring a built-in address decoder and parity generation capabilities. Manufactured by Texas Instruments, this component operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes a 14-pin SOIC package for surface-mount installation. The device supports an operating temperature range from -40°C to +85°C. Key electrical characteristics include a low-level output current of 24 mA and a maximum power dissipation of 1.25 W.

Feature Summary

• Integrates a 9-bit addressable latch with a built-in address decoder for simplified control logic.
• Provides universal parity generation and checking functionality via local output and bus-driving I/O ports.
• Features multiple enable inputs (G1, G2A/G2B) and a common clear input (G3) for flexible operation.

Applications

• Parity checking in data transmission systems
• Address decoding in memory architectures
• Bus interface circuits requiring parity verification

Procurement Notes

Verify the specific suffix 'DR' corresponds to the tape-and-reel packaging format required for your assembly process. Confirm that the 14-pin SOIC footprint matches your PCB design constraints. Ensure the 4.5 V to 5.5 V supply voltage aligns with your system's power rails. Check for any RoHS compliance documentation if environmental regulations apply to your manufacturing facility.

Selection Notes

Select this component when a combined addressable latch and parity checker is needed to reduce board space. It is suitable for applications requiring 9-bit data handling with error detection. Consider the 14-pin SOIC package size relative to available board area. Verify that the ACT logic family speed and drive strength meet your circuit requirements.

Part Context

This part belongs to the Texas Instruments 74ACT series of advanced CMOS logic devices. It combines latching functions with parity generation, distinguishing it from standard latches or simple parity generators. The device is designed for high-speed digital applications requiring reliable data integrity checks within addressable memory or bus structures.

Replacement Considerations

The SN74ACT11286N is listed as an obsolete substitute option. Verify pinout compatibility and functional equivalence before replacing the DR variant with other packages in the same logical family.