Overview
The TMS320C6745CPTPA3 is a low-power digital signal processor (DSP) from Texas Instruments, based on the TMS320C674x DSP core. This device is part of the TMS320C6000 platform and is designed to consume significantly lower power compared to other members of the same family. It is tailored for original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly develop high-performance devices with low power consumption.
The TMS320C6745CPTPA3 features a robust set of peripherals and a two-level cache architecture, making it suitable for a wide range of applications, including audio processing, automotive systems, and network streaming audio.
Key Specifications
| Specification | Details |
|---|---|
| Processor Core | TMS320C674x DSP core |
| Clock Speed | Up to 375 MHz and 456 MHz |
| Cache Memory | 32KB L1P Program RAM/Cache, 32KB L1D Data RAM/Cache, 256KB L2 Unified Mapped RAM/Cache |
| General-Purpose Registers | 64 registers (32-bit each) |
| Functional Units | Eight functional units, including ALU, multiplier, and load/store units |
| External Memory Interfaces | EMIFA (asynchronous and SDRAM), EMIFB (SDRAM with 128-MB address space) |
| UART Interfaces | Three configurable 16550-Type UART modules, one with modem control signals |
| Audio Interfaces | Two multichannel audio serial ports (McASPs) with FIFO buffers |
| Ethernet MAC | 10/100 Mbps Ethernet MAC (EMAC) with MDIO interface |
| USB Interfaces | USB 2.0 OTG port with integrated PHY, USB 1.1 OHCI (host) with integrated PHY |
| Package Type | 176-pin PowerPAD™ Plastic Quad Flat Pack (PTP suffix) |
| Operating Temperature | Commercial, Industrial, Extended, or Automotive temperature ranges |
Key Features
- Low Power Consumption: Significantly lower power consumption compared to other TMS320C6000 DSPs.
- High Performance: Up to 3648 MIPS and 2736 MFLOPS, supporting 32-bit integer, single precision (SP), and double precision (DP) floating-point operations.
- Cache Architecture: Two-level cache memory architecture with 32KB L1P and L1D caches and 256KB L2 unified cache.
- Peripheral Set: Includes 10/100 Mbps Ethernet MAC, two I2C Bus interfaces, multichannel audio serial ports (McASPs), UART interfaces, enhanced high-resolution pulse width modulators (eHRPWM), and enhanced capture (eCAP) modules.
- Programmable Real-Time Unit Subsystem (PRUSS): Two independent PRU cores with 4KB instruction RAM and 512 bytes of data RAM per core.
- External Memory Interfaces: EMIFA and EMIFB for asynchronous and SDRAM memory access.
- USB and Ethernet Support: USB 2.0 OTG and USB 1.1 OHCI with integrated PHY, and 10/100 Mbps Ethernet MAC with MDIO interface.
Applications
- A/V Receivers: Suitable for audio and video processing in home entertainment systems.
- Automotive Amplifiers: Used in automotive audio and infotainment systems.
- Soundbars and Home Theatre Systems: Ideal for high-quality audio processing in consumer electronics.
- Professional Audio: Used in professional audio equipment for live performances and recording studios.
- Network Streaming Audio: Supports streaming audio applications over Ethernet.
Q & A
- What is the TMS320C6745CPTPA3 based on?
The TMS320C6745CPTPA3 is based on the TMS320C674x DSP core.
- What are the key features of the TMS320C6745CPTPA3's cache architecture?
The device features a two-level cache architecture with 32KB L1P and L1D caches and a 256KB L2 unified cache.
- What types of external memory interfaces does the TMS320C6745CPTPA3 support?
The device supports EMIFA (asynchronous and SDRAM) and EMIFB (SDRAM) external memory interfaces.
- Does the TMS320C6745CPTPA3 support USB and Ethernet?
Yes, it supports USB 2.0 OTG and USB 1.1 OHCI with integrated PHY, and a 10/100 Mbps Ethernet MAC with MDIO interface.
- What are the operating temperature ranges for the TMS320C6745CPTPA3?
The device operates in commercial, industrial, extended, or automotive temperature ranges.
- How many multichannel audio serial ports (McASPs) does the TMS320C6745CPTPA3 support?
The TMS320C6745CPTPA3 supports two McASPs.
- What is the role of the Programmable Real-Time Unit Subsystem (PRUSS) in the TMS320C6745CPTPA3?
The PRUSS includes two independent PRU cores with 4KB instruction RAM and 512 bytes of data RAM per core, enabling real-time processing tasks.
- Can the TMS320C6745CPTPA3 be used in safety-critical applications?
Texas Instruments recommends that these devices not be used in any safety-critical applications.
- What is the package type of the TMS320C6745CPTPA3?
The device is packaged in a 176-pin PowerPAD™ Plastic Quad Flat Pack (PTP suffix).
- What are some common applications of the TMS320C6745CPTPA3?
Common applications include A/V receivers, automotive amplifiers, soundbars, home theatre systems, professional audio, and network streaming audio.
