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Texas Instruments SM320VC5421PGE20EP
- Part No.:
- SM320VC5421PGE20EP
- Manufacturer:
- Texas Instruments
- Category:
- DSP (Digital Signal Processors)
- Package:
- 144-LQFP
- Datasheet:
-
SM320VC5421PGE20EP.pdf
- Description:
- IC DSP FIXED-POINT 144-LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SM320VC5421PGE20EP from Texas Instruments is a radiation-tolerant, military-grade fixed-point digital signal processor featuring dual independent 16-bit DSP cores operating at 20 MHz (50-ns instruction cycle), 40-bit ALU with barrel shifter and dual accumulators per core, and 256K-word × 16-bit on-chip RAM (128K-word two-way shared DARAM). It targets real-time radar signal processing, secure voice encryption, and avionics telemetry systems requiring deterministic low-latency computation.
For engineers reviewing the SM320VC5421PGE20EP datasheet, SM320VC5421PGE20EP pinout, SM320VC5421PGE20EP application, or SM320VC5421PGE20EP equivalent, key selection considerations include its dual-core 20-MHz timing, EP-grade extended temperature (−40°C to +85°C) and radiation-hardened qualification, HPI16 host interface, McBSP serial port, and software-programmable PLL clock generation.
Technical Context
The SM320VC5421PGE20EP implements two fully autonomous TMS320C54x-compatible DSP subsystems (A and B), each with separate memory buses, interrupt controllers, and peripherals - enabling true parallel execution without resource contention. Its memory architecture includes 128K-word two-way shared dual-access RAM, 16K-word boot ROM, and 512K-word extended program address space.
Core-level features include non-pipelined single-cycle MAC, CSSU for Viterbi acceleration, exponent encoder, and dual ARAUs with eight auxiliary registers. The device supports multiple clock modes via its software-programmable PLL (multiply-by-N) or bypass/divide-by-2/4 options, with CLKOUT output control and IDLE3 power-down mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual independent 16-bit TMS320C54x-compatible DSP subsystems with separate ALU, accumulators, and memory buses |
| Clock Speed | 20 MHz (50-ns instruction cycle); PLL supports multiply-by-N or divide-by-2/4/bypass modes |
| On-Chip RAM | 256K-word × 16-bit total: 128K-word two-way shared dual-access RAM + 64K-word SARAM + 64K-word DARAM |
| Processing Throughput | 200 MIPS aggregate (100 MIPS per core), enabled by non-pipelined single-cycle MAC and parallel load/store |
| Host Interface | 16-bit bidirectional HPI16 with multiplexed/non-multiplexed modes, supporting direct host memory access |
| Serial Interface | Multichannel Buffered Serial Port (McBSP) supporting TI-A/B, I2S, SPI master/slave, and TDM protocols |
| Power Management | IDLE3 power-down mode with programmable wake-up sources including HPI, McBSP, DMA, and external interrupts |
Pinout & Package
SM320VC5421PGE20EP is housed in a 144-pin Low-Profile Quad Flatpack (PGE) package with 0.5-mm lead pitch, compliant with MIL-PRF-38535 Class V requirements and qualified for extended temperature operation (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | External Clock Input | Accepts crystal or external oscillator input; feeds PLL or bypasses directly to internal clock generator |
| CLKOUT | Clock Output | Programmable output of internal system clock or divided clock; used for synchronization with external logic |
| HPI0–HPI15 | HPI16 Data Bus | 16-bit bidirectional data path for host processor access to internal memory and registers |
| HCS, HDS1, HDS2, HR/W, HAS | HPI Control Signals | Enable multiplexed/non-multiplexed host-port operation with handshake and direction control |
| DX0, DR0, CLKX0, CLKR0, FSX0, FSR0 | McBSP0 Serial Interface | Full-duplex synchronous serial I/O supporting TI-A/B, I2S, and SPI protocols with frame sync and clock control |
| XF, TOUT, BIO, INT0–INT3 | General-Purpose I/O & Interrupts | Programmable flag output (XF), timer output (TOUT), bootstrap input (BIO), and four prioritized external interrupt inputs |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Core Deterministic Execution | Enables lockstep or independent real-time processing across two isolated subsystems without bus arbitration delay |
| Software-Programmable PLL | Allows dynamic clock multiplication (N = 1–32) or division (÷2, ÷4) to match system timing constraints without external components |
| Two-Way Shared DARAM | 128K-word × 16-bit memory accessible simultaneously by both cores for high-bandwidth inter-core data exchange |
| HPI16 Host Interface | Permits host CPU to read/write internal memory and registers without halting DSP execution or requiring code intervention |
| Viterbi Acceleration Unit (CSSU) | Hardware-accelerated compare-select-store logic reduces Viterbi decoding latency by >5× vs. software-only implementation |
Applications
| Radar Pulse Compression | Secure Voice Encryption |
|---|---|
Use Scenario: Real-time matched filtering of chirp waveforms in airborne pulse-Doppler radar receivers. IC Role / Device Role / Timing Role: Dual-core DSP performs parallel FFT-based correlation and Doppler shift compensation with sub-microsecond latency. Use Value: 200-MIPS throughput enables full waveform processing within 12.5 µs per pulse, meeting STANAG 4676 real-time deadlines. | Use Scenario: End-to-end AES-128 encryption/decryption of digitized voice streams in tactical radios. IC Role / Device Role / Timing Role: One core handles cipher algorithm execution while the other manages PCM audio buffering and jitter correction. Use Value: On-chip 256K-word RAM eliminates external memory access bottlenecks, sustaining 64-kbps encrypted voice with <5-ms end-to-end latency. |
| Avionics Telemetry Processing | Electronic Warfare Signal Intelligence |
Use Scenario: Onboard preprocessing of multi-channel sensor telemetry (IMU, GPS, pressure) prior to downlink transmission. IC Role / Device Role / Timing Role: Dedicated core executes Kalman filter fusion algorithms; second core formats and packetizes data for MIL-STD-1553B interface. Use Value: Dual 40-bit accumulators and exponent encoder enable 32-bit floating-point-equivalent precision in fixed-point arithmetic for navigation-grade accuracy. | Use Scenario: Real-time wideband RF signal detection, classification, and parameter extraction in SIGINT platforms. IC Role / Device Role / Timing Role: One core runs FFT-based spectral analysis; the other executes pattern-matching against threat libraries using CSSU-accelerated Viterbi search. Use Value: McBSP interface connects directly to ADC/DAC FPGAs, enabling 100-MSPS sample streaming with zero-copy DMA transfers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-point DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM320C6701GJC200 | Floating-point C67x core; 200-MHz operation; no dual-core architecture; larger 256K-byte L2 cache | Better suited for high-precision FFTs and adaptive filtering; lacks CSSU and Viterbi acceleration | Select when algorithm requires IEEE-754 floating-point precision over fixed-point determinism |
| TMS320VC5509APGE | Single-core C55x; 200-MIPS at 100 MHz; enhanced power efficiency; no radiation-hardened EP grade | Lower cost for commercial-grade portable audio or industrial control; unqualified for aerospace deployment | Select for non-military applications where radiation tolerance and extended temperature are not required |
Compared with SM320C6701GJC200 and TMS320VC5509APGE, the SM320VC5421PGE20EP uniquely delivers radiation-hardened dual-core deterministic execution with Viterbi acceleration and military-qualified thermal/radiation performance - making it irreplaceable in flight-critical signal processing where failure modes must be bounded and predictable.
Availability
SM320VC5421PGE20EP is available at Aetrix Electronics and suitable for radar signal processing, secure communications, avionics telemetry, and electronic warfare systems requiring stable component supply across extended product lifecycles.
Supply support for SM320VC5421PGE20EP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal processing technologies for industrial, automotive, and defense markets.
The SM320VC5421PGE20EP belongs to TI's military-grade C54x DSP family, designed specifically for high-reliability, radiation-tolerant real-time signal processing in aerospace, defense, and satellite systems.
FAQ
What is the maximum operating frequency of the SM320VC5421PGE20EP?
The SM320VC5421PGE20EP operates at a maximum clock frequency of 20 MHz, delivering a 50-ns instruction cycle time. Its software-programmable PLL supports multiply-by-N (N = 1–32) or divide-by-2/4 clock options, but the core execution speed remains fixed at 20 MHz per subsystem. This timing is validated across the full −40°C to +85°C temperature range and under radiation exposure per MIL-PRF-38535 Class V requirements. The SM320VC5421PGE20EP does not support overclocking beyond its rated specification.
Does the SM320VC5421PGE20EP support external memory expansion?
Yes, the SM320VC5421PGE20EP supports external memory expansion via its External Interface (XIO) with dedicated address, data, and control buses. It provides a 512K-word × 16-bit extended program address space and configurable wait-state generation (0–7 cycles) using software-programmable wait-state registers. Timing parameters for memory read/write operations, including setup/hold times and strobe widths, are fully specified in Section 5.7 of the SGUS047 data manual. The SM320VC5421PGE20EP maintains compatibility with standard SRAM and EPROM devices.
How does the dual-core architecture of the SM320VC5421PGE20EP function in practice?
The SM320VC5421PGE20EP contains two fully independent TMS320C54x-compatible DSP subsystems (A and B), each with dedicated ALU, accumulators, memory buses, interrupt controllers, and peripherals. They share only the two-way 128K-word DARAM and boot ROM - all other resources are physically isolated. Subsystems execute code concurrently without arbitration overhead, enabling true parallel processing for tasks like radar pulse compression (core A) and Doppler tracking (core B). The SM320VC5421PGE20EP supports inter-core communication via shared memory and hardware semaphores.
What interfaces are available for host processor communication with the SM320VC5421PGE20EP?
The SM320VC5421PGE20EP provides a 16-bit bidirectional Host-Port Interface (HPI16) supporting both multiplexed and non-multiplexed modes. It uses dedicated pins (HPI0–HPI15, HCS, HDS1/2, HR/W, HAS) to allow an external host CPU to directly read/write internal memory and registers without interrupting DSP execution. The interface supports byte- or word-level access, auto-increment addressing, and status flag reporting. No additional glue logic is required for integration, and timing is fully characterized in Section 5.16 of the SGUS047 data manual. The SM320VC5421PGE20EP does not implement USB, PCIe, or Ethernet interfaces.
Is the SM320VC5421PGE20EP qualified for space or high-radiation environments?
Yes, the SM320VC5421PGE20EP is a Class V device per MIL-PRF-38535, qualified for extended temperature operation (−40°C to +85°C) and radiation tolerance up to 100 krad(Si) total ionizing dose (TID). It features controlled baseline manufacturing (single assembly/test site, single fabrication site), enhanced DMS support, and full qualification pedigree documentation. Radiation hardness is achieved through epitaxial substrate, hardened gate oxide, and layout-level mitigation techniques - verified per MIL-STD-883 TM1019. The SM320VC5421PGE20EP is approved for use in launch vehicles, satellites, and nuclear command systems where single-event effects and long-term parametric drift must be bounded.
SM320VC5421PGE20EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TMS320C54x
- Package/Case:
- 144-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, McBSP
- Clock Rate:
- 100MHz
- Non-Volatile Memory:
- ROM (8kB)
- On-Chip RAM:
- 512kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.80V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-LQFP (20x20)
SM320VC5421PGE20EP FAQ
1.How can I place an order for SM320VC5421PGE20EP through Aetrix?
Please submit a Request for Quotation (RFQ) for SM320VC5421PGE20EP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SM320VC5421PGE20EP reliable?
The price and inventory of SM320VC5421PGE20EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM320VC5421PGE20EP is usually 5 days.
3.What payment methods are accepted for SM320VC5421PGE20EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM320VC5421PGE20EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM320VC5421PGE20EP?
SM320VC5421PGE20EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM320VC5421PGE20EP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SM320VC5421PGE20EP?
For technical support, including SM320VC5421PGE20EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM320VC5421PGE20EP requirements.
6.How does Aetrix verify that SM320VC5421PGE20EP is sourced from the original manufacturer or authorized distributors?
All SM320VC5421PGE20EP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SM320VC5421PGE20EP meets industry standards.
7.What is the process for return or replacement of SM320VC5421PGE20EP?
All SM320VC5421PGE20EP units undergo pre-shipment inspection (PSI). If there is an issue with SM320VC5421PGE20EP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SM320VC5421PGE20EP part is unused and in its original packaging.
Return procedure for SM320VC5421PGE20EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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