ADSP-2186LKSTZ-133

Digital Signal Processor Dsp Overview

The ADSP-2185 is a single-chip microcomputer optimized for digital signal processing, 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 architecture integrates three computational units (ALU, MAC, shifter), two data address generators, and a program sequencer. On-chip memory includes 16K words of 24-bit program RAM and 16K words of 16-bit data RAM. System interfaces comprise two serial ports, a 16-bit internal DMA port, and a byte DMA port supporting up to 4 MB external memory.

Digital Signal Processor Dsp Feature Summary

• Single-cycle instruction execution with 30 ns cycle time
• Three independent computational units: ALU, MAC, and shifter
• 16K words program RAM and 16K words data RAM on-chip
• Two double-buffered serial ports with hardware companding

Digital Signal Processor Dsp Applications

• High-speed numeric processing applications
• Digital signal processing systems requiring low power operation
• Battery-operated portable equipment with power-down requirements

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix LKSTZ-133 against official Analog Devices documentation to confirm package type, temperature range, and lead-free status. Ensure compatibility with the 100-lead TQFP form factor described in the datasheet. Confirm that the ordering code corresponds to the production grade specifications outlined in the provided Rev 0 document.

Digital Signal Processor Dsp Selection Notes

Select this component when single-cycle context switching and zero-overhead looping are required. The dual-purpose program memory allows simultaneous instruction and data fetches. Consider the host mode versus full memory mode configuration based on external bus requirements. Verify clock input compatibility, as the device requires half the instruction rate frequency.

Digital Signal Processor Dsp Part Context

The ADSP-2185 belongs to the ADSP-2100 family, ensuring code compatibility with base architecture instructions while adding extensions like bit manipulation and x-squared multiplication. It serves as a high-performance DSP microcomputer within the SHARC family lineage, offering extensive integration of memory, timers, and I/O interfaces on a single chip.

Digital Signal Processor Dsp Replacement Considerations

Consult Analog Devices for current equivalents within the ADSP-21xx series. Verify pinout and memory configuration compatibility if substituting with other members of the ADSP-2100 family. Ensure development tools such as the C Compiler and Simulator support the target processor variant.