Overview
The TMS320C25FNLW, produced by Texas Instruments, is a second-generation digital signal processor (DSP) that combines the flexibility of a high-speed controller with the numerical capability of an array processor. This device is part of the TMS320 family and is processed in CMOS technology, offering low power dissipation and enhanced functionality. The TMS320C25 is pin-for-pin and object-code compatible with the TMS32020, making it a versatile choice for various applications.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time | 100 ns (TMS320C25), 80 ns (TMS320C25-50) |
| On-Chip Data RAM | 544 Words |
| On-Chip Program ROM | 4K Words |
| Total Program/Data Memory Space | 128K Words |
| ALU/Accumulator | 32-Bit |
| Multiply Capability | 16 × 16-Bit Multiplier With a 32-Bit Product |
| Power Supply | Single 5-V Supply |
| Packaging | 68-Pin PGA, PLCC, and CER-QUAD |
| Operating Temperature Range | -40 to 85°C |
Key Features
- Enhanced instruction set with 133 instructions, including 24 additional instructions for adaptive filtering, FFTs, and extended-precision arithmetic
- Eight auxiliary registers with dedicated arithmetic unit
- Block moves for data/program management and repeat instructions for efficient use of program space
- Bit-reversed indexed-addressing mode for radix-2 FFTs
- Double-buffered serial port for direct codec interface
- Synchronization input for synchronous multiprocessor configurations
- Wait states for communication to slow off-chip memories/peripherals
- On-chip timer for control operations
- 68-to-28 pin conversion adapter socket for EPROM programming
- Commercial and military versions available
Applications
The TMS320C25 is suitable for a wide range of applications that require high-speed numerical processing and control capabilities. These include:
- Digital signal processing in audio, image, and video systems
- Telecommunications and networking equipment
- Industrial control systems
- Aerospace and defense systems
- Medical imaging and diagnostic equipment
Q & A
- What is the instruction cycle time of the TMS320C25?
The instruction cycle time of the TMS320C25 is 100 ns, while the high-speed version TMS320C25-50 has an instruction cycle time of 80 ns. - How much on-chip data RAM does the TMS320C25 have?
The TMS320C25 has 544 words of on-chip data RAM. - What is the total program/data memory space of the TMS320C25?
The total program/data memory space is 128K words. - Does the TMS320C25 support multiprocessor configurations?
Yes, it supports synchronous multiprocessor configurations with a synchronization input. - What type of power supply does the TMS320C25 require?
The TMS320C25 requires a single 5-V supply. - What are the packaging options for the TMS320C25?
The packaging options include 68-Pin PGA, PLCC, and CER-QUAD. - Is the TMS320C25 compatible with other TMS320 devices?
Yes, it is pin-for-pin and object-code compatible with the TMS32020. - Does the TMS320C25 have an on-chip timer?
Yes, it has a memory-mapped 16-bit timer for control operations. - What is the operating temperature range of the TMS320C25?
The operating temperature range is -40 to 85°C. - Are commercial and military versions of the TMS320C25 available?
Yes, both commercial and military versions are available.
