ADSP-2186KST-115

Digital Signal Processor Dsp Overview

The ADSP-2186KST-115 is a single-chip microcomputer optimized for digital signal processing, based on the ADSP-2100 family architecture. It features a 25 ns instruction cycle time and sustains 40 MIPS performance. The device integrates 40 Kbytes of on-chip RAM, configured as 8K words (24-bit) of program memory and 8K words (16-bit) of data memory. Key computational units include an independent ALU, a multiplier/accumulator with 40-bit accumulation, and a barrel shifter. It supports two double-buffered serial ports, a 16-bit internal DMA port, and a byte DMA port for external memory access.

Digital Signal Processor Dsp Feature Summary

• ADSP-2100 Base Architecture: Combines three computational units (ALU, MAC, Shifter), two Data Address Generators (DAGs), and a powerful program sequencer.
• On-Chip Memory: 40 Kbytes total, split into 8K x 24-bit Program RAM and 8K x 16-bit Data RAM.
• Serial Interfaces: Two synchronous Serial Ports (SPORT0 and SPORT1) with hardware companding and automatic data buffering.
• Low Power Modes: Includes Power-Down, Idle, and Slow Idle modes to minimize power dissipation in battery-operated equipment.

Digital Signal Processor Dsp Applications

• Digital Signal Processing applications requiring high-speed numeric processing.
• Battery-operated portable equipment utilizing low-power standby modes.
• Systems requiring dual serial communication interfaces with hardware companding.
• Embedded control systems leveraging the ADSP-2100 family code compatibility.

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'KST-115' against Analog Devices official documentation to confirm temperature range and package type. The datasheet confirms availability in 100-lead LQFP and 144-Ball Mini-BGA packages. Ensure the Mode C pin configuration matches the required Full Memory or Host Mode for the target system design.

Digital Signal Processor Dsp Selection Notes

Select this component when ADSP-2100 family software compatibility is required alongside integrated serial ports and DMA capabilities. Consider the 25 ns instruction cycle for real-time processing needs. Evaluate the 40 Kbyte on-chip memory limit against application requirements; if larger memory is needed, external overlay via Byte DMA must be implemented.

Digital Signal Processor Dsp Part Context

The ADSP-2186 belongs to the ADSP-2100 family of DSP microcomputers. It extends the base architecture with integrated serial ports, DMA controllers, and programmable I/O flags. The device is fabricated in a high-speed, double-metal, low-power CMOS process, enabling single-cycle instruction execution and multifunction operations.

Digital Signal Processor Dsp Replacement Considerations

Check Analog Devices documentation for direct replacements within the ADSP-218x family, such as the ADSP-2189M, which offers higher clock speeds. Verify pinout compatibility and memory size differences before substitution.