ADSP-2187LBSTZ-210

Digital Signal Processor Dsp Overview

The ADSP-2187LBSTZ-210 is a member of the Analog Devices ADSP-218x family, based on the ADSP-2185 architecture. It operates at a clock frequency of 21 MHz, yielding a 30 ns instruction cycle time and 33 MIPS sustained performance. The device features a single-cycle execution capability with a 3-bus architecture allowing dual operand fetches. It integrates 80 Kbytes of on-chip RAM, configured as 16K words (24-bit) of program memory and 16K words (16-bit) of data memory. Key computational units include an independent ALU, multiplier/accumulator, and barrel shifter.

Digital Signal Processor Dsp Feature Summary

• 30 ns instruction cycle time with single-cycle execution for all instructions
• 80 Kbytes on-chip RAM: 16K x 24-bit Program Memory and 16K x 16-bit Data Memory
• Dual serial ports (SPORT0, SPORT1) with hardware companding and automatic buffering
• Host Mode interface via 16-bit Internal DMA port or Full Memory Mode with Byte DMA

Digital Signal Processor Dsp Applications

• Digital signal processing in battery-operated portable equipment due to low power modes
• Multiprocessor communication systems utilizing synchronous serial ports
• High-speed numeric processing applications requiring zero-overhead looping

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix LBSTZ-210 against the manufacturer's current production status. The source datasheet confirms the ADSP-2185 base architecture supports 21 MHz operation. Confirm package type availability and lead times through authorized distribution channels prior to procurement.

Digital Signal Processor Dsp Selection Notes

Select this component when system requirements align with the ADSP-2100 family instruction set compatibility. Ensure the design accommodates the 100-lead TQFP package constraints. Verify that the 21 MHz clock speed meets the real-time processing demands, noting that higher speed variants exist within the same architectural family.

Digital Signal Processor Dsp Part Context

This part belongs to the ADSP-218x series, which extends the ADSP-2100 family architecture. The ADSP-2185 datasheet serves as the primary technical reference for the core functionality, interrupt vectors, and memory interfaces shared across the family.

Digital Signal Processor Dsp Replacement Considerations

Check for ADSP-2185 or other ADSP-218x variants with different clock speeds or package options. Ensure pin compatibility for the 100-lead TQFP form factor if substituting.