ADSP-2191MBCA-140

Digital Signal Processor Dsp Overview

The ADSP-2191MBCA-140 is a fixed-point digital signal processor from Analog Devices, operating at a maximum clock frequency of 140 MHz. It features the ADSP-219x core architecture with up to 160 MIPS sustained performance and a 6.25 ns instruction cycle time. The device integrates 64K words of on-chip SRAM, configured as 32K words of 24-bit program RAM and 32K words of 16-bit data RAM. It operates with a 2.5 V internal supply and supports 3.3 V I/O levels. The component is housed in a 144-ball Mini-BGA package.

Digital Signal Processor Dsp Feature Summary

• ADSP-219x DSP Core: Single-cycle execution for most instructions, dual DAG units, and zero-overhead looping.
• Integrated Memory: 64K words of on-chip SRAM (32K 24-bit PM / 32K 16-bit DM) plus 1K word boot ROM.
• Peripheral Interface: Three serial ports, two SPI ports, one UART, 16-bit Host port, and three programmable timers.
• Power Management: User-selectable power-down and idle modes with 2.5 V core and 3.3 V I/O operation.

Digital Signal Processor Dsp Applications

• High-performance industrial motor control
• Telecommunications systems requiring TDM channels
• General-purpose digital signal processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix BCA-140 against the manufacturer's ordering guide to confirm the package type (Mini-BGA) and temperature range. Confirm availability status as older generation components may have limited stock or end-of-life notices. Ensure compatibility with existing PCB footprints for the 144-ball Mini-BGA configuration.

Digital Signal Processor Dsp Selection Notes

Select this model when code compatibility with the ADSP-218x family is required alongside enhanced architectural features. Choose the 140 MHz variant if system timing constraints do not require the full 160 MHz capability but still demand high throughput. Verify that the 144-pin Mini-BGA package fits the mechanical design constraints compared to the LQFP alternative.

Digital Signal Processor Dsp Part Context

This part belongs to the ADSP-21xx series, specifically the ADSP-219x family. It serves as an evolution of the ADSP-218x architecture, offering improved computational units and memory management while maintaining binary compatibility. It is designed for applications needing efficient C/C++ compilation support and flexible peripheral integration.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the same family include the ADSP-2191MKSTZ-160 (LQFP package, 160 MHz) or other ADSP-219x variants. Cross-family migration to newer SHARC processors requires significant software refactoring due to architectural differences.