TMS320C6722BRFP250 TI TMS320C67x+ Floating-Point DSP 250MHz EMIF dMAX McASP HTQFP-144

TMS320C6722BRFP250 Product Overview

The TMS320C6722BRFP250 is a high-performance 32-bit floating-point digital signal processor (DSP) from Texas Instruments (TI), based on the TMS320C67x+ core in a 144-lead HTQFP (RFP) package, running at 250MHz. The TMS320C6722BRFP250 is an enhanced member of the C672x family featuring an integrated External Memory Interface (EMIF), and the TMS320C6722BRFP250 significantly boosts external memory expansion capability while retaining powerful floating-point performance. On-chip memory includes 256KB ROM and 128KB RAM, paired with a high-performance EMIF that seamlessly connects to SDRAM, SRAM, and Flash, easily accommodating large programs and data. The TMS320C6722BRFP250's efficient dMAX Dual Data Movement Accelerator enables high-speed data transfers between peripherals and memory without CPU intervention, significantly boosting system throughput. The TMS320C6722BRFP250 offers comprehensive communication interfaces: two multi-channel audio serial ports (McASP) connect directly to audio codecs; UART, SPI, and I2C flexibly interface with various peripherals; and a 16-bit general-purpose Host-Port Interface (HPI) facilitates high-speed data interaction with external host processors. Leveraging the C67x+ core's Very Long Instruction Word (VLIW) architecture, the TMS320C6722BRFP250 delivers up to 2000 MIPS and 1500 MFLOPS of exceptional floating-point performance at 250MHz, making the TMS320C6722BRFP250 ideal for compute-intensive applications such as real-time audio processing, effects engines, industrial data analysis, and multi-tasking embedded control. The HTQFP-144 package features exposed leads for easy soldering and visual inspection, providing a floating-point DSP platform that combines high performance with manufacturing ease.

TMS320C6722BRFP250 Core Features

Processor Core: The TMS320C6722BRFP250 features a 32-bit floating-point TMS320C67x+ VLIW DSP core, up to 250MHz, 2000 MIPS/1500 MFLOPS

On-Chip Memory: The TMS320C6722BRFP250 provides 256KB ROM + 128KB RAM, configurable as cache/RAM mix

External Memory Interface (EMIF): The TMS320C6722BRFP250 supports seamless connection to 16-bit SDRAM, SRAM, Flash, and ROM for easy external memory expansion

dMAX DMA Engine: The TMS320C6722BRFP250 integrates a Dual Data Movement Accelerator for high-speed peripheral-to-RAM, RAM-to-peripheral transfers, freeing CPU bandwidth

Audio Interfaces: The TMS320C6722BRFP250 offers 2× McASP, supporting I2S, TDM, and other audio formats, directly connectable to audio ADC/DAC/Codec

Serial Interfaces: The TMS320C6722BRFP250 includes 1× UART, 1× SPI, 2× I2C, all with DMA support

Host Interface: The TMS320C6722BRFP250 provides a 16-bit general-purpose Host-Port Interface (HPI) for high-speed parallel data exchange with external processors/microcontrollers

Timers & GPIO: The TMS320C6722BRFP250 contains 2× 32-bit general-purpose timers and up to 16 general-purpose I/O pins

System Management: The TMS320C6722BRFP250 features an on-chip PLL clock generator, watchdog timer, and power management module

Power & Package: The TMS320C6722BRFP250 operates with core voltage 1.2V, I/O voltage 3.3V; it comes in a 144-lead HTQFP (RFP) package, easy to hand-solder and visually inspect

TMS320C6722BRFP250 Applications

Professional Audio Processing: The TMS320C6722BRFP250 is ideal for digital effects processors, instrument modeling, audio matrix processors, KTV front-end effects

Portable Audio Devices: The TMS320C6722BRFP250 suits digital voice recorders, portable audio workstations, conference microphone arrays

Industrial Control & Automation: The TMS320C6722BRFP250 can be used in vibration spectrum analysis, complex algorithm controllers, real-time power electronics simulation

Medical Instruments: The TMS320C6722BRFP250 is deployed in floating-point biosignal analysis, portable ultrasound back-end processing, medical alarm and analysis modules

Communications & Signal Processing: The TMS320C6722BRFP250 supports software-defined radio front-ends, high-speed modems, sonar signal processing

TMS320C6722BRFP250 Key Advantages

Enhanced Floating-Point Performance: The TMS320C6722BRFP250 combines a 250MHz clock with the C67x+ VLIW architecture to deliver up to 1500 MFLOPS of floating-point and 2000 MIPS of fixed-point performance—a 25% boost over the 200MHz version, completing complex signal processing tasks faster.

EMIF External Memory Expansion: The TMS320C6722BRFP250's integrated 16-bit EMIF easily connects to external SDRAM and Flash, overcoming the lack of external memory interface on the C6720 and enabling large programs and extensive data buffering.

dMAX DMA Frees CPU Bandwidth: The built-in Dual Data Movement Accelerator of the TMS320C6722BRFP250 automatically transfers data between McASPs, UARTs, SPIs, I2Cs, and RAM without CPU intervention, significantly reducing interrupt overhead and improving system real-time performance.

Rich Audio & Serial Interfaces: With the TMS320C6722BRFP250, two McASPs can simultaneously connect multiple digital audio devices, while UART, SPI, and I2C provide flexible peripheral expansion to meet the demands of multi-channel audio systems and general control.

HTQFP-144 Package, Production-Friendly: The TMS320C6722BRFP250's 144-lead thin quad flat pack with exposed leads facilitates hand soldering, automated production, and visual inspection, lowering manufacturing barriers.

Code-Compatible, Easy Expansion: The TMS320C6722BRFP250 is code-compatible with other C672x family devices, enabling smooth upgrades to C6726/C6727 when more memory or peripherals are needed, protecting customer software investments.

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FAQ

1. How does the TMS320C6722BRFP250 differ from the TMS320C6720?
   
   • The TMS320C6722BRFP250 runs at a higher clock speed (250MHz vs. 200MHz), with a 25% boost in floating-point performance to 1500 MFLOPS.
   • The TMS320C6722BRFP250 has 128KB on-chip RAM, compared to 32KB on the C6720, enabling more complex real-time data storage.
   • The TMS320C6722BRFP250 integrates a 16-bit EMIF external memory interface supporting SDRAM and Flash expansion; the C6720 has no EMIF.
   • The TMS320C6722BRFP250 adds a UART interface for more flexible serial communication.
2. What are the practical benefits of the dMAX DMA engine?
   
   • The TMS320C6722BRFP250's dMAX automatically moves data between McASPs, UARTs, SPIs, I2Cs, and on-chip RAM without requiring CPU intervention for each interrupt.
   • For applications such as multi-channel audio acquisition and continuous data stream processing, dMAX significantly reduces CPU load, improving system real-time performance and stability.
3. What floating-point performance can be expected at 250MHz?
   
   • At 250MHz, the TMS320C6722BRFP250's C67x+ core delivers up to 1500 MFLOPS of single-precision floating-point performance and 2000 MIPS of instruction throughput.
   • With the VLIW architecture, up to 8 instructions can be executed per cycle, greatly enhancing parallel processing efficiency.
4. What external memories can the EMIF interface support?
   
   • The 16-bit EMIF of the TMS320C6722BRFP250 supports SDRAM (up to 256MB), asynchronous SRAM, NOR/NAND Flash, and other memory types.
   • This allows the TMS320C6722BRFP250 to run large programs and handle massive data sets, overcoming the limitations of on-chip memory space.
5. How many audio interfaces does it have? How many audio devices can be connected?
   
   • The TMS320C6722BRFP250 provides 2 multi-channel audio serial ports (McASP), both supporting I2S, TDM, and other audio formats, directly connectable to audio ADCs/DACs/Codecs.
   • A single McASP on the TMS320C6722BRFP250 can support multiple serial data channels, giving the system strong multi-channel audio processing capability for connecting multiple digital audio devices.
6. What is the purpose of the HPI host interface? How is it used?
   
   • The 16-bit HPI allows an external processor (such as an MCU or another DSP) to directly access the internal memory of the TMS320C6722BRFP250.
   • This architecture enables efficient data sharing between a host processor and the TMS320C6722BRFP250, suitable for heterogeneous systems requiring separated "control + algorithm".
7. What tools and software are needed for development?
   
   • Use TI's free Code Composer Studio (CCS) IDE for development and debugging of the TMS320C6722BRFP250.
   • Hardware debuggers such as the XDS100 or XDS200 series are recommended, supporting JTAG in-circuit programming and real-time debugging.
   • TI provides extensive C67x+ floating-point DSP libraries to significantly accelerate algorithm development on the TMS320C6722BRFP250.
8. Is the HTQFP-144 package difficult to solder?
   
   • The HTQFP-144 of the TMS320C6722BRFP250 is a thin quad flat pack with exposed leads and 0.5mm pin pitch, classified as a medium-density QFP package.
   • Standard reflow soldering processes achieve high yield; hand soldering is also possible using flux and drag-soldering techniques, with visible joints for easy inspection and repair.
9. What boot modes does the chip support?
   
   • The TMS320C6722BRFP250 supports booting from internal ROM, SPI Flash, or the HPI interface.
   • The boot mode is determined by the logic levels of configuration pins at reset, allowing flexible selection based on system design.
10. What are the upgrade options if I need more memory or peripherals?
    
    • Within the same family, the TMS320C6726 and C6727 offer larger on-chip RAM, more McASP channels, and richer communication interfaces for upward compatibility from the TMS320C6722BRFP250.
    • For higher parallel processing and lower power consumption, consider TI's TMS320C66x multi-core DSPs.