ADSP-2185MBSTZ-266

Digital Signal Processor Dsp Overview

The ADSP-2185MBSTZ-266 is a single-chip microcomputer optimized for digital signal processing, fabricated in a high-speed, low-power CMOS process. It operates with a 13.3 ns instruction cycle time at 2.5 V, delivering 75 MIPS sustained performance. The device integrates 80K bytes of on-chip RAM, configured as 16K words (24-bit) of program memory and 16K words (16-bit) of data memory. It features the ADSP-2100 family base architecture with three independent computational units: an ALU, a multiplier/accumulator, and a shifter. The processor supports dual operand fetches per cycle via a 3-bus architecture and includes two serial ports, a 16-bit internal DMA port, and a byte DMA port.

Digital Signal Processor Dsp Feature Summary

• 75 MIPS sustained performance with 13.3 ns instruction cycle time
• 80K bytes on-chip RAM (16K words PM / 16K words DM)
• Three independent computational units: ALU, MAC, Shifter
• Two double-buffered synchronous serial ports (SPORTs)

Digital Signal Processor Dsp Applications

• Digital signal processing applications
• High-speed numeric processing
• Battery-operated portable equipment

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure compatibility with development tools such as the ADSP-2100 Family Development Software and EZ-KIT Lite hardware platforms for system integration and debugging.

Digital Signal Processor Dsp Selection Notes

Select this component for designs requiring code compatibility with the broader ADSP-2100 family while needing integrated on-chip memory. Consider the 100-lead LQFP or 144-ball Mini-BGA packages based on board space constraints. Verify power supply requirements for both internal (2.5 V) and external I/O domains (2.5 V or 3.3 V).

Digital Signal Processor Dsp Part Context

The ADSP-2185M belongs to the ADSP-218xL series of single-chip microcomputers. These devices are pin-compatible and differentiated primarily by the amount of on-chip SRAM. The ADSP-2185M provides 80K bytes of RAM, whereas other members may offer up to 160K bytes. All members share the same instruction set and architectural features.

Digital Signal Processor Dsp Replacement Considerations

Other members of the ADSP-218xL series are pin-compatible and serve as functional alternatives if memory capacity differences are acceptable. Specific substitutes depend on the required on-chip RAM size and package availability.