SMJ320C40GFM50

Digital Signal Processor Dsp Overview

The SMJ320C40GFM50 is a military-grade digital signal processor (DSP) fabricated using Texas Instruments' Enhanced Performance Implanted CMOS (EPIC) technology. It operates within a temperature range of -55°C to 125°C and processes data at a maximum clock frequency of 50 MHz, delivering 50 MFLOPS performance with a 40-ns instruction cycle time. The device features a 32-bit floating-point architecture, six on-chip communication ports, and a 6-channel DMA coprocessor. It includes 8 KBytes of single-cycle dual-access RAM and a 512-byte instruction cache. The component is housed in a 325-pin Ceramic Grid Array (GF) package.

Digital Signal Processor Dsp Feature Summary

• Military QML Processing compliant with MIL-PRF-38535 for operation between -55°C and 125°C
• 50 MHz clock speed providing 50 MFLOPS, 25 MIPS, and 320 MBps throughput
• Six on-chip communication ports enabling direct interprocessor connectivity without external glue logic
• Integrated 6-channel DMA coprocessor supporting split-mode operation for up to 12 channels

Digital Signal Processor Dsp Applications

• Parallel processing systems requiring high-speed multiprocessor interfaces
• Embedded applications utilizing source-code compatibility with the SMJ320C30
• Systems validated for Ada compiler integration and real-time control
• Hardware designs leveraging IEEE Standard 1149.1 JTAG test access

Digital Signal Processor Dsp Procurement Notes

Verify that the specific ordering suffix corresponds to the GF package variant. Confirm the silicon revision level if software reset or IDLE2 power-down modes are required for the design. Ensure environmental specifications align with the designated military operating temperature range.

Digital Signal Processor Dsp Selection Notes

Select this model when a 50 MHz execution rate is sufficient for the target algorithm. Consider the 325-pin GF package constraints during PCB layout. Evaluate the need for the IDLE2 clock-stop mode if low-power consumption is a priority during idle states.

Digital Signal Processor Dsp Part Context

This component belongs to the fourth-generation C4x DSP family from Texas Instruments. It maintains assembly language compatibility with the TMS320C3x series while introducing significant architectural enhancements such as dedicated communication ports and an independent DMA coprocessor for improved I/O handling.

Digital Signal Processor Dsp Replacement Considerations

The SMJ320C40HFH50 serves as a functional alternative offering identical electrical characteristics but utilizes a 352-lead Ceramic Quad Flatpack package instead of the GF grid array.