NXP Semiconductors MCIMX31VKN5

Overview

MCIMX31VKN5 from NXP Semiconductors (formerly Freescale) is a multimedia applications processor built around an ARM1136JF-S core, operating up to 532 MHz with 16 KB instruction and 16 KB data L1 caches, 128 KB L2 cache, and integrated MPEG-4 hardware encoder supporting VGA@30 fps video encoding. It targets portable media players, feature-rich cellular phones, and wireless PDAs requiring high-performance, low-power processing.

For engineers reviewing the MCIMX31VKN5 datasheet, MCIMX31VKN5 pinout, MCIMX31VKN5 application, or MCIMX31VKN5 equivalent, key selection considerations include its MAPBGA-457 package (14 × 14 mm, 0.5 mm pitch), dual-Vt 90 nm process enabling dynamic voltage/frequency scaling (DVFS), integrated SDMA controller, and support for DDR, NAND Flash, and USB 2.0 OTG interfaces.

Technical Context

The MCIMX31VKN5 implements the ARM v6 architecture with Jazelle® Java acceleration, SIMD DSP extensions, and an eight-stage pipeline with branch prediction. Its memory subsystem integrates 16 KB I-cache, 16 KB D-cache, 128 KB unified L2 cache, 32 KB ROM, and 16 KB SRAM - all accessible via AMBA™ L2 interface and 64-bit data paths.

Power management relies on DPTC (Dynamic Process and Temperature Compensation), DVFS, clock gating, and independent power domains. The chip includes dedicated modules for image processing (IPU), vector floating-point computation (VFP11), autonomous video post-processing, and security functions including RNGA, SCC, and RTIC.

Key Specifications

Pinout & Package

MCIMX31VKN5 uses a 457-ball MAPBGA package (Case 1581, 14 × 14 mm, 0.5 mm pitch), designed for high-density portable PCB layouts with thermal performance optimized for natural convection (RθJA = 56°C/W on single-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with i.MX353 and OMAP3530, MCIMX31VKN5 offers unique value in cost-sensitive, battery-constrained portable media designs where hardware MPEG-4 encode, low-leakage 90 nm process, and mature ARM11 toolchain support are prioritized over newer Cortex features or GPU-centric workloads.

Availability

MCIMX31VKN5 is available at Aetrix Electronics and suitable for portable media players, feature-rich cellular phones, and wireless PDAs requiring stable component supply across extended product lifecycles.

Supply support for MCIMX31VKN5 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 (formerly Freescale Semiconductor) is a global leader in secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in ARM-based application processors and edge intelligence.

The i.MX31 product line was engineered specifically for ultra-low-power, high-performance portable multimedia devices - integrating video encode, image processing, and security into a single die to replace multi-chip solutions in smartphones and media players.

FAQ

What is the maximum operating frequency of the MCIMX31VKN5 and under what conditions?

The MCIMX31VKN5 supports up to 532 MHz in overdrive mode, which requires core supply voltage (QVCC/QVCC1/QVCC4) ≥1.47 V. Operation above 1.47 V is limited to ≤1.25 cumulative years (10,950 hours) to prevent degradation. At 1.22–1.47 V, max frequency is 400 MHz for continuous operation. This specification is validated for silicon revision 2.0 (M91E mask set) per datasheet Rev. 4.1.

Does the MCIMX31VKN5 include a graphics processing unit (GPU)?

Yes, the MCIMX31VKN5 includes a dedicated Graphics Processing Unit (GPU) for hardware acceleration of 2D and 3D graphics algorithms. This distinguishes it from the MCIMX31L variant, which omits the GPU. The GPU is documented in the block diagram and module inventory sections of the MCIMX31 technical data sheet (Rev. 4.1).

What package type and ball count does the MCIMX31VKN5 use?

The MCIMX31VKN5 uses a MAPBGA-457 package (14 × 14 mm body, 0.5 mm pitch), designated Case 1581. It contains 457 solder balls arranged in a grid pattern optimized for thermal dissipation and high-density routing. This package is RoHS-compliant, lead-free, moisture sensitivity level (MSL) 3, and rated for 260°C reflow peak temperature.

How does the MCIMX31VKN5 handle power management for battery-powered devices?

The MCIMX31VKN5 implements multiple hardware-assisted power saving techniques: Dynamic Voltage and Frequency Scaling (DVFS), Dynamic Process and Temperature Compensation (DPTC), clock gating, and independent power domain gating. It supports State Retention mode at 0.95 V core voltage, keeping RTC active while reducing power to <100 µA - enabling weeks of standby in portable media players.

Which external memory types are supported by the MCIMX31VKN5?

The MCIMX31VKN5 supports DDR SDRAM, NAND Flash, NOR Flash, PSRAM, SDRAM, and SRAM via its External Memory Interface (EMI). Specific controllers include Enhanced SDRAM Controller (ESDCTL), NAND Flash Controller (NFC), and Wireless External Interface Module (WEIM) - enabling flexible memory configurations for boot, code execution, and media buffering in portable systems.