NXP Semiconductors MCIMX31CVMN4D

Overview

MCIMX31CVMN4D from NXP Semiconductors (formerly Freescale) is an industrial- and automotive-grade multimedia applications processor built on the ARM1136JF-S core, operating at 400 MHz with 16 KB instruction and 16 KB data L1 caches, 128 KB unified L2 cache, and integrated MPEG-4 hardware encoder supporting VGA@30 fps. It features dual-Vt 90 nm process technology, dynamic voltage and frequency scaling (DVFS), and operates across –40°C to +85°C for infotainment and human-machine interface systems.

For engineers reviewing the MCIMX31CVMN4D datasheet, MCIMX31CVMN4D pinout, MCIMX31CVMN4D application, or MCIMX31CVMN4D equivalent, key selection criteria include confirmed ARM1136JF-S core operation at 400 MHz, integrated IPU and VFP co-processor, support for DDR/NAND/SDRAM memory interfaces, USB 2.0 OTG + dual host controllers, and verified thermal resistance (RθJA = 29°C/W on 4-layer board) under extended temperature conditions.

Technical Context

The MCIMX31CVMN4D implements the ARM v6 architecture with Jazelle® Java acceleration, Thumb® instruction set, and SIMD DSP extensions. Its memory subsystem integrates 16 KB L1 instruction and data caches, a 128 KB L2 cache, 32 KB ROM for boot code, and 16 KB SRAM for low-power audio streaming.

Power management includes DVFS, independent clock/power domain gating, and state retention mode with 0.95 V core supply. The silicon revision 2.0.1 enables USB HS and SD/MMC boot via updated iROM, distinguishing it from revision 2.0 parts.

Key Specifications

Pinout & Package

MCIMX31CVMN4D uses a 473-ball MAPBGA package (Case 1931), 19 × 19 mm body size, 0.8 mm ball pitch, RoHS-compliant and lead-free. Ball assignment follows JEDEC MO-251 standard with defined power, ground, signal, and thermal pad layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multimedia applications processor applications.

Compared with i.MX357CJM8B and i.MX27ADS, MCIMX31CVMN4D uniquely balances ARM11-class compute, hardware MPEG-4 encode, VFP11 acceleration, and automotive-grade security in a single 90 nm die-making it optimal for mid-tier infotainment and industrial HMI where encode offload and tamper resistance are critical.

Availability

MCIMX31CVMN4D is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial human-machine interface terminals, and secure medical display devices requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MCIMX31CVMN4D 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

NXP Semiconductors is a global semiconductor company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The i.MX31 product line was designed specifically for cost-sensitive, low-power multimedia applications in harsh environments-integrating ARM11 performance with hardware video encode, security accelerators, and extended temperature operation.

FAQ

What is the maximum operating frequency of the MCIMX31CVMN4D?

The MCIMX31CVMN4D operates at a maximum CPU frequency of 400 MHz using the ARM1136JF-S core. This frequency is guaranteed across the full –40°C to +85°C ambient temperature range and under specified core supply conditions (QVCC/QVCC1/QVCC4 ≥ 1.22 V). The part supports dynamic voltage and frequency scaling (DVFS) to reduce power consumption during lower-load operation, but 400 MHz remains the absolute upper limit for sustained operation.

Does the MCIMX31CVMN4D include a graphics processing unit (GPU)?

Yes, the MCIMX31CVMN4D includes a dedicated Graphics Processing Unit (GPU) for hardware acceleration of 2D and 3D graphics algorithms. This GPU is distinct from the i.MX31L variant, which omits the GPU. The GPU interfaces directly with the Image Processing Unit (IPU) and LCD controller, enabling efficient rendering for graphical user interfaces in automotive and industrial HMI applications without burdening the ARM11 core.

What memory types does the MCIMX31CVMN4D support through its external memory interface?

The MCIMX31CVMN4D supports DDR SDRAM, SDRAM, NAND Flash, NOR Flash, and SRAM via its External Memory Interface (EMI). The EMI includes a Multi-Master Memory Interface (M3IF), Enhanced SDRAM Controller (ESDCTL), NAND Flash Controller (NFC), and Wireless External Interface Module (WEIM). These controllers enable concurrent access to multiple memory types with configurable timing parameters, allowing flexible system architecture for boot, code execution, and data storage.

How does the MCIMX31CVMN4D handle secure boot and runtime integrity?

The MCIMX31CVMN4D implements secure boot and runtime integrity through multiple hardware modules: the ROM Patch (ROMPATCH) enables field-upgradable boot code; the Security Controller (SCC) manages secure RAM and cryptographic operations; the Run-Time Integrity Checker (RTIC) monitors peripheral memory contents; and the Random Number Generator (RNGA) provides FIPS-140-compliant entropy. Tamper detection on GPIO1_6 triggers immediate security violation upon physical intrusion, and this logic cannot be disabled until reset.

What is the significance of silicon revision 2.0.1 in the MCIMX31CVMN4D part number?

Silicon revision 2.0.1 in MCIMX31CVMN4D denotes an updated mask revision with enhanced iROM firmware that adds native boot capability from USB High-Speed and SD/MMC interfaces-features not present in revision 2.0 parts. This revision also incorporates errata fixes, including ENGcm02610 related to USB HS data transfer stability at low core voltages, making MCIMX31CVMN4D the preferred choice for new designs requiring flexible, robust boot options.