Overview
The TMS320C25FNA is a second-generation digital signal processor (DSP) from Texas Instruments, part of the TMS320 family. This device is processed in CMOS technology, offering low power dissipation and high performance. It is pin-for-pin and object-code compatible with the TMS32020, making it a versatile choice for various digital signal processing applications. The TMS320C25FNA features an instruction cycle time of 100 ns and operates at a clock rate of 40 MHz, making it suitable for demanding DSP tasks such as adaptive filtering, FFTs, and extended-precision arithmetic.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Integrated Circuits (ICs) - Embedded - DSP (Digital Signal Processors) |
| Package | 68-LCC (J-Lead), 68-Lead Plastic Leaded Chip Carrier (PLCC) |
| Technology | CMOS |
| Clock Rate | 40 MHz |
| Instruction Cycle Time | 100 ns |
| On-Chip RAM | 544 words (16-bit) + 4K words of program ROM |
| Total Memory Space | 128K words of total program/data memory space |
| Voltage - I/O | 5.00 V |
| Voltage - Core | 5.00 V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount |
Key Features
- Enhanced instruction set with 133 instructions, including 24 additional instructions for adaptive filtering, FFTs, and extended-precision arithmetic.
- Eight auxiliary registers with a dedicated arithmetic unit.
- Bit-reversed indexed-addressing mode for radix-2 FFTs.
- Single-cycle multiply/accumulate instructions.
- Block moves for data/program management.
- Double-buffered serial port.
- On-chip clock generator.
- Single 5-V supply.
- On-chip 16-bit timer for control operations.
- Memory-mapped 16-bit timer with timer interrupt capability.
Applications
The TMS320C25FNA is suitable for a wide range of digital signal processing applications, including:
- Audio and speech processing.
- Image and video processing.
- Telecommunications and network equipment.
- Industrial control and automation.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
Q & A
- What is the instruction cycle time of the TMS320C25FNA?
The instruction cycle time of the TMS320C25FNA is 100 ns.
- What type of technology is used in the TMS320C25FNA?
The TMS320C25FNA is processed in CMOS technology.
- How much on-chip RAM does the TMS320C25FNA have?
The TMS320C25FNA has 544 words of on-chip data RAM and 4K words of on-chip program ROM.
- What is the operating voltage of the TMS320C25FNA?
The operating voltage of the TMS320C25FNA is 5.00 V for both I/O and core.
- What is the operating temperature range of the TMS320C25FNA?
The operating temperature range of the TMS320C25FNA is 0°C ~ 70°C (TA).
- Is the TMS320C25FNA pin-for-pin compatible with other TMS320 models?
Yes, the TMS320C25FNA is pin-for-pin and object-code compatible with the TMS32020.
- What types of packages are available for the TMS320C25FNA?
The TMS320C25FNA is available in 68-LCC (J-Lead) and 68-Lead Plastic Leaded Chip Carrier (PLCC) packages.
- Does the TMS320C25FNA have an on-chip timer?
Yes, the TMS320C25FNA has a memory-mapped 16-bit timer for control operations.
- What are some of the key features of the TMS320C25FNA's instruction set?
The TMS320C25FNA's instruction set includes single-cycle multiply/accumulate instructions, block moves, and bit-reversed indexed-addressing mode for radix-2 FFTs.
- Is the TMS320C25FNA suitable for real-time code development?
While the TMS320C25FNA itself does not have on-chip EPROM, the TMS320E25 variant does, which allows for real-time code development and modification.
