Overview
The SMJ320C30GBM40 is a 32-bit digital signal processor (DSP) manufactured by Texas Instruments. This DSP is designed to deliver exceptional performance and versatility in digital signal processing, making it suitable for a wide range of demanding applications. The SMJ320C30GBM40 optimizes speed by implementing functions in hardware that other processors might handle through software or microcode, resulting in high performance previously unavailable on a single chip. It is fabricated using Enhanced Performance Implanted CMOS (EPIC) technology, which enhances its overall efficiency and reliability.
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | SMJ320C30GBM40 |
| Package | 181-Pin Grid Array Ceramic Package (GB Suffix), 196-Pin Ceramic Quad Flatpack With Nonconductive Tie-Bar (HFG Suffix) |
| Operating Temperature Range | -55°C to 125°C |
| Performance | 40 MFLOPS (50-ns Cycle), 50 MFLOPS (40-ns Cycle), 20 MIPS (50-ns Cycle), 25 MIPS (40-ns Cycle) |
| On-Chip RAM | Two 1K-Word × 32-Bit Single-Cycle Dual-Access On-Chip RAM Blocks, One 4K-Word × 32-Bit Single-Cycle Dual-Access On-Chip ROM Block |
| Instruction Cache | 64-Word × 32-Bit Instruction Cache |
| ALU and Multiplier | 40 / 32-Bit Floating-Point / Integer Multiplier and Arithmetic Logic Unit (ALU) |
| External Ports | Two 32-Bit External Ports (24- and 13-Bit Address) |
| Serial Ports | Two Serial Ports With Support for 8- / 16- /24- /32-Bit Transfers |
| DMA Controller | On-Chip Direct Memory Access (DMA) Controller for Concurrent I/O and CPU Operation |
| Registers | Eight Extended-Precision Registers (Accumulators), Two Address Generators With Eight Auxiliary Registers and Two Auxiliary Register Arithmetic Units (ARAUs) |
Key Features
- High-performance DSP with up to 50 MFLOPS and 25 MIPS
- Operating temperature range of -55°C to 125°C, processed to MIL-PRF-38535 (QML)
- Two 1K-Word × 32-Bit Single-Cycle Dual-Access On-Chip RAM Blocks and one 4K-Word × 32-Bit Single-Cycle Dual-Access On-Chip ROM Block
- 64-Word × 32-Bit Instruction Cache
- 40 / 32-Bit Floating-Point / Integer Multiplier and Arithmetic Logic Unit (ALU) with parallel ALU and multiplier execution in a single cycle
- On-Chip Direct Memory Access (DMA) Controller for concurrent I/O and CPU operation
- Two 32-Bit External Ports (24- and 13-Bit Address) and two serial ports with support for 8- / 16- /24- /32-Bit transfers
- Eight Extended-Precision Registers (Accumulators) and two address generators with eight auxiliary registers and two auxiliary register arithmetic units (ARAUs)
- Zero-overhead loops with single-cycle branches and interlocked instructions for multiprocessing support
- 32-Bit Barrel Shifter and two- and three-operand instructions
- Conditional calls and returns, block repeat capability, and validated Ada compiler
Applications
The SMJ320C30GBM40 is widely utilized in various demanding environments due to its robust performance and reliability. Here are some key application areas:
- Automotive Electronics: Powers advanced driver assistance systems (ADAS) and infotainment systems, delivering high-fidelity audio processing and real-time signal analysis.
- Aerospace and Defense: Serves critical roles in communication systems, radar processing, and guidance systems, where its rugged design and reliability are essential for mission-critical operations.
- Industrial Automation: Used in industrial control systems, machine learning, and real-time data processing applications where high reliability and performance are required.
Q & A
- What is the SMJ320C30GBM40?
The SMJ320C30GBM40 is a 32-bit digital signal processor (DSP) manufactured by Texas Instruments, designed for high-performance digital signal processing.
- What is the operating temperature range of the SMJ320C30GBM40?
The operating temperature range is -55°C to 125°C, making it suitable for extreme environments.
- What are the key performance metrics of the SMJ320C30GBM40?
It can execute up to 50 MFLOPS and 25 MIPS, with a cycle time of 40-ns or 50-ns.
- What types of memory does the SMJ320C30GBM40 have?
It includes two 1K-Word × 32-Bit Single-Cycle Dual-Access On-Chip RAM Blocks and one 4K-Word × 32-Bit Single-Cycle Dual-Access On-Chip ROM Block.
- Does the SMJ320C30GBM40 support multiprocessing?
Yes, it supports multiprocessing with interlocked instructions and zero-overhead loops with single-cycle branches.
- What is the packaging of the SMJ320C30GBM40?
The SMJ320C30GBM40 is available in 181-Pin Grid Array Ceramic Package (GB Suffix) and 196-Pin Ceramic Quad Flatpack With Nonconductive Tie-Bar (HFG Suffix).
- Is the SMJ320C30GBM40 validated for military use?
Yes, it is processed to MIL-PRF-38535 (QML) standards.
- What are some common applications of the SMJ320C30GBM40?
It is used in automotive electronics, aerospace and defense systems, and industrial automation.
- Does the SMJ320C30GBM40 have on-chip DMA capabilities?
Yes, it has an on-chip Direct Memory Access (DMA) Controller for concurrent I/O and CPU operation.
- What is the technology used to fabricate the SMJ320C30GBM40?
It is fabricated using Enhanced Performance Implanted CMOS (EPIC) technology.
