ADSP-2185MBCA-266

Digital Signal Processor Dsp Overview

The ADSP-2185MBCA-266 is a single-chip microcomputer optimized for digital signal processing applications, 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 80 Kbytes 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 computational units: an ALU, a multiplier/accumulator (MAC), and a shifter. The processor supports dual operand fetches in every instruction cycle via a 3-bus architecture.

Digital Signal Processor Dsp Feature Summary

• 75 MIPS sustained performance with 13.3 ns instruction cycle time
• 80 Kbytes on-chip RAM (16K x 24-bit Program, 16K x 16-bit Data)
• ADSP-2100 family code compatible with extended instruction set
• Two double-buffered serial ports (SPORTs) with hardware companding
• 16-bit Internal DMA port and Byte DMA port for external memory access

Digital Signal Processor Dsp Applications

• Digital signal processing systems requiring high-speed numeric processing
• Battery-operated portable equipment utilizing power-down modes
• Multiprocessor communication systems using SPORT interfaces
• Systems requiring zero-overhead looping and conditional instruction execution

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix 'BCA-266' against the manufacturer's current Ordering Guide to confirm package type (100-lead LQFP or 144-ball Mini-BGA) and temperature range specifications. Ensure compatibility with the required voltage levels (2.5 V internal, 2.5 V or 3.3 V external) for the target system design.

Digital Signal Processor Dsp Selection Notes

Select this component when ADSP-2100 family code compatibility is required alongside 75 MIPS performance. Consider the 100-lead LQFP or 144-ball Mini-BGA packages based on board space constraints. Verify that the application benefits from the integrated ICE-Port interface for debugging and the flexible I/O structure supporting 2.5 V or 3.3 V operation.

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 80 Kbytes of RAM, distinguishing it from other members of the series which may offer different memory configurations while maintaining the same architectural core.

Digital Signal Processor Dsp Replacement Considerations

Other members of the ADSP-218xL series are pin-compatible and share the same instruction set. Selection among them depends on the specific on-chip RAM requirements of the design. No direct cross-model functional differences exist beyond memory capacity.