ADSP-2185LKST-160

Digital Signal Processor Dsp Overview

The ADSP-2185LKST-160 is a single-chip microcomputer optimized for digital signal processing, fabricated in a 0.5 μm CMOS process. It operates with a 30 ns instruction cycle time, delivering 33 MIPS sustained performance. The device integrates 80K bytes of on-chip memory, configured as 16K words (24-bit) of program RAM and 16K words (16-bit) of data RAM. It features a three-bus architecture allowing dual operand fetches, two double-buffered serial ports, a programmable timer, and extensive interrupt capabilities. The processor supports host mode via a 16-bit internal DMA port or full memory mode with byte-wide external access.

Digital Signal Processor Dsp Feature Summary

• Single-cycle execution of all instructions with 30 ns cycle time
• Three independent computational units: ALU, MAC, and Shifter
• 80K bytes on-chip memory (16K x 24 Program RAM, 16K x 16 Data RAM)
• Two synchronous serial ports with hardware companding support

Digital Signal Processor Dsp Applications

• Hardware testing and address trap verification
• Development laboratory stands for signal processors
• High-speed numeric processing applications

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix LKS-T against official documentation to confirm package type and temperature range. Confirm current production status as older revisions may be obsolete. Ensure compatibility with existing development tools such as the EZ-KIT Lite or ICE-Port emulator interface for debugging.

Digital Signal Processor Dsp Selection Notes

Select this model for applications requiring code compatibility with the ADSP-2100 family base architecture. Choose based on the need for integrated on-chip memory to reduce external component count. Consider the 100-lead TQFP package constraints and verify power supply requirements for the 5V operation specified in the datasheet.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-21xx family, specifically utilizing the ADSP-2100 core architecture. It shares architectural similarities with models like the ADSP-2181 and ADSP-2189 but offers distinct memory configurations and pinout options. The part is designed for embedded DSP environments requiring efficient loop execution and low-power modes.

Digital Signal Processor Dsp Replacement Considerations

Consult Analog Devices for current equivalents. The ADSP-2185LKST-160 may be obsolete; verify if newer SHARC series processors provide compatible instruction sets and sufficient memory resources for direct replacement.