ADSP-2185LBSTZ-160

Digital Signal Processor Dsp Overview

The ADSP-2185LBSTZ-160 is a digital signal processor from the ADSP-218xL series, fabricated in a 0.5 μm CMOS process. It features a 30 ns instruction cycle time and 33 MIPS sustained performance. The device integrates 80K bytes of on-chip RAM, configured as 16K words (24-bit) program memory and 16K words (16-bit) data memory. It operates with a 5 V supply voltage and includes two double-buffered serial ports, a 16-bit internal DMA port, and a byte DMA port. The processor supports single-cycle instruction execution and context switching within a three-bus architecture.

Digital Signal Processor Dsp Feature Summary

• 30 ns instruction cycle time delivering 33 MIPS sustained performance
• 80K bytes on-chip RAM configured as 16K words program and 16K words data memory
• Two double-buffered serial ports with hardware companding support
• 16-bit internal DMA port and byte-wide external memory interface

Digital Signal Processor Dsp Applications

• Digital signal processing applications requiring high-speed numeric processing
• Battery-operated portable equipment utilizing low power modes
• Systems requiring parallel peripheral interfacing via I/O memory interface

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix LBSTZ against official Analog Devices documentation to confirm package type, temperature range, and lead-free compliance. Ensure the ordering code matches the required pin count and thermal specifications for the target application design.

Digital Signal Processor Dsp Selection Notes

Select this component when 33 MIPS performance and 80K bytes of on-chip memory are sufficient. Consider the ADSP-2185L series for code compatibility with the broader ADSP-2100 family. Evaluate the 100-lead TQFP package constraints and 5 V operating voltage requirements during system integration.

Digital Signal Processor Dsp Part Context

The ADSP-2185 belongs to the ADSP-218xL family, which shares pin compatibility across members differentiated by on-chip SRAM size. This family maintains code compatibility with the ADSP-2100 base architecture, allowing for flexible design decisions regarding memory capacity without altering core software logic.

Digital Signal Processor Dsp Replacement Considerations

Members of the ADSP-218xL series are pin-compatible but differ in memory size. Verify if alternative part numbers within the same family meet the specific memory requirements of the design.