MCIMX31LCJMN4D - i.MX31LC ARM1136 400MHz SoC | NXP 473-LFBGA
N.º da peça: MCIMX31LCJMN4D ✗ Fim de vidaMCIMX31LCJMN4D Visão geral
The MCIMX31LCJMN4D belongs to the multimedia applications processor category — a class of system-on-chip that integrates a CPU core, memory controller, display controller, image processing unit, and a rich set of industry-standard peripherals into a single device. Within the broader taxonomy, this places it as: i.MX31LC -> multimedia applications processor -> applications processor -> system-on-chip (SoC) -> integrated circuit. Multimedia processors sit at the intersection of computing and signal processing, optimized for low-power video, audio, and human-machine-interface workloads in industrial and automotive products.
Key differentiating features include a 32-bit ARM1136JF-S core with Jazelle Java acceleration and floating-point support, an integrated LCD controller capable of driving high-resolution TFT panels, a CMOS sensor interface for camera input, an image processing unit (IPU) for video scaling and color space conversion, and a multi-standard audio codec interface. The device supports DDR and SDRAM memory types through its DRAM controller and exposes USB, UART, SPI, I2C, and SD/SDIO/MMC interfaces.
Architecturally, the MCIMX31LC uses the Freescale/NXP Smart Speed technology with dynamic voltage and frequency scaling across multiple power domains. The 473-LFBGA package exposes extensive parallel I/O, multiple memory bus widths, and dedicated image-processing pins, which together demand careful PCB layout for signal integrity and power-rail sequencing.
Typical applications include industrial human-machine-interface (HMI) panels, automotive infotainment head units (pre-LVDS era), point-of-sale terminals, and portable medical monitors. The wide operating temperature range and long-term NXP product longevity support are particularly relevant for industrial embedded designs with multi-year lifecycle commitments.
When designing with the MCIMX31LCJMN4D, engineers should plan a multi-layer PCB (typically 6+ layers) for the high-pin-count BGA and provide adequate thermal relief. Boot configuration, JTAG, and DDR memory routing are the three most common sources of first-prototype failures and should be validated against the i.MX31 reference manual before committing to layout.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para MCIMX31LCJMN4D — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MCIMX31LCJMN4D (mesmo formato e footprint) — diferindo em Core Architecture, Floating Point Unit, Operating Temperature Range.
MCIMX31CJMN4D
✅ Drop-InConsulte o preço
Ver ficha técnica →MCIMX31LCVMN4D
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MCIMX31CVMN4D
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MCIMX31LCJMN4D Classificações máximas e características elétricas
| Part Family | i.MX31LC Multimedia Applications Processor |
| Core Architecture | ARM1136JF-S (32-bit RISC) |
| Maximum Core Frequency | 400 MHz |
| Number of Cores | 1 |
| Faixa de temperatura de operação | -40C to +85C (industrial/automotive grade) |
| Encapsulamento | 473-LFBGA (19x19 mm) |
| Tipo de montagem | Surface Mount |
| Graphics Processing Unit | Not present (LC variant) |
| MMU | Yes |
| Floating Point Unit | Yes |
| Display Controller | Integrated LCD controller (TFT) |
| Camera Interface | CMOS sensor interface (CSI) |
| Image Processing Unit (IPU) | Yes |
| DRAM Controller | DDR / SDRAM (mDDR / SDR) |
| USB | USB 2.0 Host + OTG |
| Target Market | Industrial and Automotive embedded |
| Manufacturer | Freescale Semiconductor (now NXP Semiconductors) |
Configuração de pinos do MCIMX31LCJMN4D
| Pino A1 | [DATA_NEEDED] — Pin-level mapping not exposed in retrieved web data — refer to NXP datasheet MCIMX31C.pdf and i.MX31 Reference Manual for full 473-LFBGA ball map |
Aplicações típicas
MCIMX31LCJMN4D é adequado para 6 aplicaçãos: Industrial Human-Machine Interface (HMI) Panels, Automotive Infotainment Head Units (Legacy), Point-of-Sale (POS) Terminals, Portable Medical Patient Monitors, Industrial Printer Controllers, Embedded Data-Acquisition and Control Panels.
Industrial Human-Machine Interface (HMI) Panels
The MCIMX31LCJMN4D is well-suited for industrial HMI panels where a TFT LCD must be driven directly and touch input is processed, but the 2D GPU of the standard i.MX31C is not required. The integrated LCD controller supports high-resolution TFT panels typical of operator-interface HMIs, while the image processing unit (IPU) handles color space conversion and scaling for crisp on-screen graphics without burdening the ARM1136JF-S core. Designers benefit from the part's -40C to +85C industrial temperature grade and its mature Linux and WinCE BSP ecosystem. Compared with newer SoCs, the LC variant trims system cost by omitting the GPU block — a meaningful saving when the HMI uses static screens, gauges, and basic iconography rather than animated 3D content.
Recomendado
Automotive Infotainment Head Units (Legacy)
Pre-LVDS automotive infotainment head units used the MCIMX31LCJMN4D as a cost-optimized main processor for radio, climate, and basic navigation displays. The device's CMOS sensor interface supported backup-camera integration, the multi-standard audio codec interface handled AM/FM and CD-changer audio paths, and the integrated LCD controller drove early WVGA dashboard displays. The 400 MHz ARM1136JF-S core was adequate for MP3 decode and simple route guidance, and the LC variant's cost reduction versus the standard i.MX31C helped OEMs hit aggressive BOM targets. Modern automotive designs have long since migrated to i.MX6 and i.MX8 families, so this application is now limited to legacy product maintenance and refurbishment.
Recomendado
Point-of-Sale (POS) Terminals
POS terminals in retail and hospitality leverage the MCIMX31LCJMN4D to drive a cashier-facing color display, a customer-facing secondary display, a magnetic-stripe or smart-card reader, and an Ethernet or Wi-Fi network interface — all from a single chip. The ARM1136JF-S core at 400 MHz is sufficient for transaction processing and encrypted card-data handling, while the LCD controller and IPU deliver the responsive touch UI that cashiers expect. The integrated USB 2.0 host port supports barcode scanners and receipt printers, and the SD/SDIO/MMC controller accommodates local storage for transaction logs. Cost-sensitive POS OEMs selected the LC variant to avoid paying for the 2D GPU silicon they did not need.
Recomendado
Portable Medical Patient Monitors
Portable patient monitors for spot-check vitals, infusion-pump displays, and bedside telemetry used the MCIMX31LCJMN4D for its low-power profile, integrated LCD controller, and reliable DDR memory interface. The image processing unit accelerated ECG waveform rendering and grayscale image processing for diagnostic displays, while the CMOS sensor interface accepted video input from endoscopy or ultrasound probes in higher-end carts. Industrial temperature rating and long-term NXP product support were key selection criteria for medical OEMs needing multi-year product lifecycles. Modern portable medical designs have largely migrated to i.MX6ULL and i.MX7 families for lower power and integrated security accelerators.
Recomendado
Industrial Printer Controllers
Industrial label and barcode printers used the MCIMX31LCJMN4D as a controller for print-head driving, paper-feed stepper control, and the operator LCD. The USB 2.0 host port accepts keyboard or barcode-scanner input, the SD card slot stores label formats and fonts, and the LCD controller drives the small operator panel. The 400 MHz ARM1136JF-S provides enough headroom for raster image processing at print resolution, while the LC variant's cost reduction matters at the high-volume end of the industrial-printer market. The MMU and floating-point unit support the embedded Linux BSPs that printer OEMs standardized on for label-format scripting.
Recomendado
Embedded Data-Acquisition and Control Panels
SCADA remote-terminal-units (RTUs) and substation-data-concentrators used the MCIMX31LCJMN4D to aggregate sensor data over RS-485, Ethernet, and CAN interfaces, then drive a local LCD for technicians. The chip's industrial temperature grade and robust peripheral set made it attractive for unattended outdoor or substation installations. The integrated LCD controller and image processing unit accelerated graphical trend displays and alarm-log screens without requiring a discrete graphics controller. The LC variant's omission of the 2D GPU was acceptable because the screens were predominantly text and 2D gauges — workloads the ARM1136JF-S core handles comfortably.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCIMX31LCJMN4D — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MCIMX31CJMN4D | MCIMX31LCVMN4D | MCIMX31CVMN4D |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 473-LFBGA (19x19 mm) | 473-LFBGA (19x19 mm) — same | 473-LFBGA (19x19 mm) — same | 473-LFBGA (19x19 mm) — same |
| Core Architecture | ARM1136JF-S | ARM1136JF-S | ARM1136JF-S | ARM1136JF-S |
| Maximum Core Frequency | 400 MHz | 400 MHz | 400 MHz | 400 MHz |
| 2D GPU | Not present (LC variant) | Present (standard C variant) | Not present (LC variant) | Present (standard C variant) |
| Image Processing Unit (IPU) | Yes | Yes | Yes | Yes |
| LCD Controller | Integrated TFT | Integrated TFT | Integrated TFT | Integrated TFT |
| USB | USB 2.0 Host + OTG | USB 2.0 Host + OTG | USB 2.0 Host + OTG | USB 2.0 Host + OTG |
| Lifecycle Status | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) |
Principais diferenciais
- Lower BOM cost versus the standard i.MX31C variant (vs MCIMX31CJMN4D)
- Identical 473-LFBGA 19x19 mm footprint for PCB reuse (vs MCIMX31CJMN4D)
- Mature industrial/automotive temperature grade and BSP ecosystem (vs MCIMX31CVMN4D (same family, different screen))
Notas de projeto
The 473-LFBGA (19x19 mm) package demands a high-density PCB with microvia or via-in-pad construction. Use at least 6 layers to fan out the wide DDR memory bus, the LCD data bus, and the image-processing signals. Per NXP layout guidelines for i.MX31 family, place 0.1 uF decoupling capacitors as close as possible to every power pin and provide a solid ground pour under the BGA to control return-path impedance.
The i.MX31LC requires multiple power rails (core, I/O, DDR reference, PLL analog, USB analog) with strict ramp-order requirements. Use the NXP-recommended power-management IC such as the MC13892 or PF0100 to sequence the rails correctly. Skipping power sequencing is a leading cause of soft JTAG-locking failures and unrecoverable boot hangs on first prototypes.
Boot-mode configuration on i.MX31LC is set by external pull resistors on dedicated boot-config pins — these are read only at reset release and cannot be changed in software. Engineers frequently misconfigure boot from NAND vs. SD vs. UART, leading to a board that never starts. Validate boot-mode strapping against the i.MX31 Reference Manual before finalizing the schematic; it is far cheaper to fix in schematic review than to rework a 473-ball BGA prototype.
DDR memory routing requires matched trace lengths (typically within 50 mil tolerance for the byte-lane groups) and proper termination. The i.MX31LC supports both DDR1 and mDDR/LPDDR; mismatch between the configured memory type in software and the populated memory device is a common cause of intermittent boot failures that are very difficult to debug without an oscilloscope on the DDR strobe signals.
Informações de conformidade
RoHS/REACH/lead-free status was not exposed in the verified web data retrieved on 2026-10-17. The i.MX31 family predates widespread RoHS conversion; original Freescale production lots may be non-RoHS, while later production may be RoHS-compliant. Confirm date code and CoC with the distributor (Rochester Electronics) before placing in a RoHS-restricted design. AEC-Q100 is not applicable — this is a microprocessor/SoC, not an automotive-qualified IC.
