ADSP-2187LKSTZ-160

Digital Signal Processor Dsp Overview

The ADSP-2187LKSTZ-160 is a DSP microcomputer from the Analog Devices ADSP-2100 family, fabricated in a 0.5 μm CMOS process. It features a 30 ns instruction cycle time delivering 33 MIPS sustained performance with single-cycle execution. The device integrates 80 KB of on-chip RAM, configured as 16K words (24-bit) of program memory and 16K words (16-bit) of data memory. It operates at 5 V and includes two serial ports, a 16-bit internal DMA port, and a byte DMA port. The processor utilizes a three-bus architecture for dual operand fetches and supports low-power modes including power-down with 100-cycle recovery.

Digital Signal Processor Dsp Feature Summary

• 30 ns instruction cycle time providing 33 MIPS sustained performance
• 80 KB on-chip RAM configured as 16K x 24-bit program and 16K x 16-bit data memory
• Three independent computational units: ALU, MAC, and Barrel Shifter
• Two double-buffered serial ports with hardware companding support

Digital Signal Processor Dsp Applications

• Digital signal processing applications requiring high-speed numeric processing
• Battery-operated portable equipment utilizing low-power modes
• Systems requiring glueless interface to external peripherals via programmable wait states
• Multiprocessor communication systems using SPORT interfaces

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'LKSTZ' against official Analog Devices documentation to confirm package type, temperature range, and lead-free compliance status. Ensure the source document explicitly lists this exact part number variant, as datasheets often cover the base family (ADSP-2185/2187) without detailing every ordering suffix variation.

Digital Signal Processor Dsp Selection Notes

Select this component when a 33 MIPS fixed-point DSP with integrated memory is required. The ADSP-2187 offers code compatibility with the broader ADSP-2100 family. Consider the 100-lead TQFP package constraints and the 5 V operating voltage. Evaluate if the 80 KB on-chip memory suffices or if external overlay memory via the Byte DMA port is necessary.

Digital Signal Processor Dsp Part Context

This part belongs to the ADSP-2100 family of digital signal processors. The ADSP-2187 is an enhanced version of the ADSP-2185, typically offering increased on-chip memory capacity while maintaining architectural compatibility. It shares the same core instruction set and peripheral interfaces, allowing for scalable design within the same ecosystem.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the ADSP-2100 family include the ADSP-2185 or other ADSP-218x variants. Verify pinout compatibility and memory size differences. No cross-model substitutes are confirmed in the provided text.