ADSP-2189NBST-320

Digital Signal Processor Dsp Overview

The ADSP-2189NBST-320 is a 16-bit digital signal processor from the Analog Devices ADSP-218xN series, fabricated in a 0.18 μm CMOS process. It features a 12.5 ns instruction cycle time at 1.8 V internal voltage, delivering 80 MIPS sustained performance with single-cycle execution. The device integrates up to 48K words of program RAM and 48K words of data RAM. Key architectural components include an ALU, multiplier/accumulator (MAC), barrel shifter, two data address generators (DAGs), and a program sequencer. It supports flexible I/O for 1.8 V, 2.5 V, or 3.3 V operation and includes two serial ports, a 16-bit internal DMA port, and a byte DMA port.

Digital Signal Processor Dsp Feature Summary

• High-performance 16-bit DSP architecture with 80 MIPS sustained performance and single-cycle instruction execution.
• Integrated memory configuration providing up to 48K words of program RAM and 48K words of data RAM.
• Three independent computational units: ALU, MAC (40-bit accumulation), and shifter.
• Dual serial ports (SPORT) with hardware companding and automatic data buffering capabilities.

Digital Signal Processor Dsp Applications

• Digital signal processing applications requiring high-speed computation and low power consumption.
• Battery-operated portable equipment utilizing power-down modes for extended standby life.
• Systems requiring flexible serial communication interfaces with synchronous data transfer.

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix against the manufacturer's current ordering guide to confirm package type and temperature range. Confirm RoHS compliance status as specifications are subject to change without notice. Ensure compatibility with existing ADSP-21xx family code if migrating from previous generations.

Digital Signal Processor Dsp Selection Notes

Select this model for designs requiring 48K words of program memory and 48K words of data memory within the ADSP-218xN family. Consider the 144-ball BGA package for space-constrained surface mount applications. Evaluate power requirements against the 1.8 V internal core voltage and 12.5 ns instruction cycle timing constraints.

Digital Signal Processor Dsp Part Context

The ADSP-2189NBST-320 belongs to the ADSP-218xN series, which consists of six pin-compatible microcomputers differentiated by on-chip SRAM size. All members share the same base architecture and instruction set, ensuring code compatibility across the family. This allows designers to scale memory resources while maintaining software consistency.

Digital Signal Processor Dsp Replacement Considerations

Other members of the ADSP-218xN series offer different memory configurations but remain pin-compatible. Verify that alternative models provide sufficient program and data RAM for the specific application requirements before substitution.