NXP Semiconductors MIMX8UX6AVLFZAC

Overview

MIMX8UX6AVLFZAC from NXP Semiconductors is an automotive-qualified i.MX 8DualX applications processor featuring dual 1.2 GHz Arm Cortex-A35 cores, one 264 MHz Arm Cortex-M4F core, GC7000Lite GPU (372 MHz), H.264 decode/encode video processing, and integrated Tensilica HiFi 4 DSP. It supports LPDDR4 @1200 MHz, dual USB 2.0 OTG, PCIe 3.0 (1-lane), three CAN/CAN-FD interfaces, and failsafe display control for instrument cluster and infotainment head units.

For engineers reviewing the MIMX8UX6AVLFZAC datasheet, MIMX8UX6AVLFZAC pinout, MIMX8UX6AVLFZAC application, or MIMX8UX6AVLFZAC equivalent, key selection criteria include its 21 mm × 21 mm FCPBGA package with 0.8 mm pitch, AHAB secure boot, 64 KB secure RAM, 24-bit parallel LCD support, and FIPS 140-2 non-certified security configuration.

Technical Context

The MIMX8UX6AVLFZAC implements a heterogeneous multicore architecture: two Cortex-A35 cores share a 512 KB L2 cache and run AArch64/AArch32 code, while the Cortex-M4F core handles real-time tasks with 256 KB TCM and dedicated I²C. The System Control Unit (SCU) manages power, clocks, boot ROMs, and PMIC interface independently of the A35 domain.

Its multimedia subsystem integrates GC7000Lite GPU (OpenGL ES 3.1, Vulkan), VPU supporting H.264 decode up to 4Kp30 and encode up to 1080p30, and HiFi 4 DSP at 640 MHz with 32 KB instruction + 48 KB data cache. Display output includes dual MIPI-DSI/LVDS combo PHYs (each configurable as 4-lane DSI or LVDS) plus 24-bit parallel LCD up to 720p60.

Key Specifications

Pinout & Package

Package: FCBGA, 21 mm × 21 mm, 0.8 mm pitch, lidded - thermally optimized for automotive under-hood environments with 0.8 mm ball pitch enabling high I/O density and signal integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MIMX8UX6AVLFZAC, MIMX8UX5AVLFZAC removes the HiFi 4 DSP to lower cost while retaining full multimedia capability, whereas MIMX8UX6AVOFZAC shrinks the package and I/O set for space-constrained deployments-neither is pin-compatible, requiring PCB redesign.

Availability

MIMX8UX6AVLFZAC is available at Aetrix Electronics and suitable for automotive instrument clusters, infotainment head units, and central gateway modules requiring stable component supply across extended temperature ranges (−40°C to +105°C).

Supply support for MIMX8UX6AVLFZAC 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in Arm-based applications processors and automotive functional safety.

The i.MX 8X family-including MIMX8UX6AVLFZAC-is designed specifically for automotive infotainment and digital cockpit applications, emphasizing ASIL-B compliance, display failover, and heterogeneous compute for mixed-criticality workloads.

FAQ

What is the maximum LPDDR4 speed supported by MIMX8UX6AVLFZAC?

MIMX8UX6AVLFZAC supports 16-bit LPDDR4 memory at 1200 MHz data rate, delivering 19.2 GB/s peak bandwidth. This speed is validated under automotive temperature conditions (−40°C to +105°C) and requires strict PCB layout adherence to JEDEC JESD209-4 specifications, including matched trace lengths and controlled impedance routing. The memory controller includes built-in training algorithms for reliable initialization across voltage and temperature corners.

Does MIMX8UX6AVLFZAC include hardware support for secure boot?

Yes, MIMX8UX6AVLFZAC includes Advanced High Assurance Boot (AHAB) with ECDSA-384 signature verification, SHA-384 hashing, and immutable ROM-based root of trust. It validates signed firmware images stored in external flash before loading into internal SRAM, preventing unauthorized code execution. The CAAM cryptographic accelerator also supports AES-128/256 encryption for secure firmware updates and key storage in 64 KB secure RAM.

Can MIMX8UX6AVLFZAC drive two independent displays simultaneously?

Yes, MIMX8UX6AVLFZAC supports up to three independent displays: two via its dual MIPI-DSI/LVDS combo PHYs (each configurable as 4-lane DSI or LVDS) and one via 24-bit parallel LCD interface. The display controller includes 18-layer composition engine and SafeAssure failover path, enabling concurrent rendering for digital instrument cluster and center-stack infotainment with guaranteed visual continuity during software faults.

What is the role of the Cortex-M4F core in MIMX8UX6AVLFZAC?

The Cortex-M4F core in MIMX8UX6AVLFZAC operates independently of the Cortex-A35 domain to handle time-critical, deterministic tasks such as display failover management, CAN message filtering, sensor fusion, and real-time audio processing. It features 256 KB TCM, dedicated I²C ports, and Wakeup Interrupt Controller (WIC), allowing it to remain active in low-power states while offloading latency-sensitive functions from the main application processor.

Is PCIe 3.0 support available on MIMX8UX6AVLFZAC, and what are its implementation constraints?

MIMX8UX6AVLFZAC includes one PCIe 3.0 (1-lane) interface with L1 substate support, intended for connecting external modules like LTE modems or security accelerators. Implementation requires AC-coupled differential signaling with 100 Ω impedance, PCIe-compliant power sequencing, and proper reference clock jitter (<100 fs RMS). The interface does not support endpoint-to-endpoint communication and must be configured as root complex in most automotive use cases.