ADSP-2104BPZ-80

Digital Signal Processor Dsp Overview

The ADSP-2104BPZ-80 is a 16-bit fixed-point digital signal processor from the ADSP-21xx family, manufactured by Analog Devices. It operates at a maximum clock frequency of 20 MHz with an instruction cycle time of 50 ns, delivering 20 MIPS performance. The device features an enhanced Harvard architecture with three independent buses for simultaneous instruction and data access. On-chip memory includes 512 words of program RAM and 256 words of data RAM. It integrates two synchronous serial ports (SPORTs), a programmable interval timer, and dual data address generators supporting modulo and bit-reverse addressing. The component is housed in a 68-lead PLCC package.

Digital Signal Processor Dsp Feature Summary

• 20 MIPS processing speed with single-cycle instruction execution
• Enhanced Harvard architecture with separate program and data buses
• On-chip memory: 512 words program RAM, 256 words data RAM
• Dual Data Address Generators (DAGs) with circular buffering support
• Two double-buffered synchronous serial ports with hardware companding

Digital Signal Processor Dsp Applications

• Digital audio processing and telecommunications interfaces
• Industrial control systems requiring real-time numeric processing
• Modem and baseband signal processing applications

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'BPZ' against the manufacturer's ordering guide to confirm package type (PLCC) and temperature range specifications. Ensure compatibility with existing 5V power supply designs, as this variant typically operates at 5V unlike the 'L' series which uses 3.3V. Confirm availability through authorized distributors as older generation DSPs may have limited stock or obsolescence risks.

Digital Signal Processor Dsp Selection Notes

Select the ADSP-2104BPZ-80 when a 16-bit fixed-point architecture with on-chip RAM is required for cost-sensitive applications. Choose this model over the ADSP-2109 if external boot memory is acceptable, as the ADSP-2104 lacks factory-programmed ROM. Ensure the design utilizes the 68-lead PLCC footprint and supports the necessary 5V I/O voltage levels for peripheral interfacing.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-2100 family of microcomputers, which established Analog Devices' presence in the embedded DSP market. The ADSP-2104 serves as the baseline RAM-based variant, while the ADSP-2109 provides on-chip ROM. Both share the same core architecture, enabling code portability within the family while differing primarily in memory configuration and boot capabilities.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-compatible replacements are not explicitly listed in the provided documentation. Consider the ADSP-2109BPZ-80 for identical functionality with integrated ROM, or newer SHARC family processors for enhanced floating-point performance, though these require architectural redesign.