TMS320C40GFL50

Digital Signal Processor Dsp Overview

The TMS320C40GFL50 is a 32-bit floating-point digital signal processor (DSP) from Texas Instruments, operating at a 50-ns instruction cycle time. It utilizes a 325-pin Ceramic Grid Array (GF) package and runs on a 5-V supply. The device features six communication ports for direct interprocessor connectivity, a six-channel DMA coprocessor, and an internal memory architecture comprising 8 KBytes of dual-access RAM and a 512-byte instruction cache. Fabricated using 0.72-mm EPIC technology, it supports IEEE 1149.1 JTAG boundary scan and provides source-code compatibility with the TMS320C3x series.

Digital Signal Processor Dsp Feature Summary

• Six on-chip communication ports enabling direct processor-to-processor communication without external glue logic.
• Six-channel Direct Memory Access (DMA) coprocessor supporting split-mode operation to effectively double available channels.
• Internal memory includes 8 KBytes of single-cycle dual-access RAM and a 512-byte instruction cache.
• Supports software-controlled communication-port FIFO reset and IDLE2 clock-stop power-down mode.

Digital Signal Processor Dsp Applications

• Multiprocessor systems requiring high-speed parallel processing and direct interprocessor data exchange.
• Real-time signal processing applications utilizing the 40-bit floating-point arithmetic capabilities.
• Systems employing IEEE 1149.1 (JTAG) boundary scan for manufacturing test and debugging.

Digital Signal Processor Dsp Procurement Notes

Verify silicon revision markings on the component surface, as features such as NMI bus-grant and IDLE2 modes are specific to revisions 5.0 and later. Confirm that the GF suffix corresponds to the 325-pin CPGA package. Ensure design compatibility with the 5-VDC supply voltage requirements specified in the recommended operating conditions.

Digital Signal Processor Dsp Selection Notes

Select this model when a 50-ns cycle time is required; faster variants include the -60 (33-ns) and slower variant the -40 (50-ns). The 'GF' suffix denotes the 325-pin ceramic grid array package. Designers must account for the separate global and local bus interfaces and ensure adequate decoupling for the multiple 5-V supply pins (DVDD, GADVDD, LADVDD, etc.).

Digital Signal Processor Dsp Part Context

This component belongs to the fourth generation of Texas Instruments DSPs, designed primarily for parallel processing. It serves as a successor to the TMS320C3x family, offering enhanced throughput through dedicated buses for program, data, and DMA operations. The architecture supports massive concurrent I/O by separating the CPU execution paths from peripheral access paths.

Digital Signal Processor Dsp Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate other members of the TMS320C4x family or newer generations based on pinout and performance requirements.