ADSP-2185LKST-133

Digital Signal Processor Dsp Overview

The ADSP-2185LKST-133 is a single-chip microcomputer optimized for digital signal processing applications, fabricated in a high-speed, double metal, low power, 0.5 μm CMOS process. It operates with a 30 ns instruction cycle time, delivering 33 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, including independent ALU, MAC, and shifter computational units, two data address generators, and a powerful program sequencer. The processor supports single-cycle instruction execution and context switching.

Digital Signal Processor Dsp Feature Summary

• 30 ns Instruction Cycle Time providing 33 MIPS sustained performance
• 80K Bytes On-Chip RAM configured as 16K words Program Memory and 16K words Data Memory
• Two Double-Buffered Serial Ports with Companding Hardware and Automatic Data Buffering
• 16-Bit Internal DMA Port and 8-Bit Byte DMA Port for high-speed memory access

Digital Signal Processor Dsp Applications

• High speed numeric processing applications
• Digital signal processing systems requiring glueless system design
• Battery operated portable equipment utilizing low power modes

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix LKSZ or similar against the manufacturer's current documentation to confirm package type and temperature range. Confirm availability status as legacy components may have limited supply chains. Ensure development tools such as the ADSP-2100 Family Development Software are compatible with the target environment.

Digital Signal Processor Dsp Selection Notes

Select this component when code compatibility with the ADSP-2100 family is required alongside integrated I/O and memory. Consider the 100-lead TQFP package constraints and the Mode C pin configuration during reset for Host vs. Full Memory mode. Evaluate power requirements against the available Power-Down, Idle, and Slow Idle modes for battery-operated designs.

Digital Signal Processor Dsp Part Context

The ADSP-2185 belongs to the ADSP-218xL series, which consists of single chip microcomputers differentiated by on-chip SRAM amounts while maintaining pin compatibility. This series offers flexibility in design decisions through ADSP-21xx code compatibility and instruction set extensions. The ADSP-2185 specifically provides 80K bytes of on-chip memory within this family structure.

Digital Signal Processor Dsp Replacement Considerations

Other members of the ADSP-218xL series are pin-compatible and differ primarily in on-chip RAM capacity. Verify functional equivalence regarding memory size and interface requirements before substitution.