NXP Semiconductors MIMX9351CVTXMAB

Overview

MIMX9351CVTXMAB from NXP Semiconductors is an industrial-grade applications processor featuring a single Arm® Cortex®-A55 core operating at 1.7 GHz, a dedicated Arm® Cortex®-M33 real-time core (250 MHz), and integrated neural processing unit (NPU) for ML inference acceleration. It supports dual Gigabit Ethernet (one with TSN), MIPI CSI-2 (2-lane, 1080p30), MIPI DSI (4-lane, 1080p60), LPDDR4X with inline ECC, and CAN-FD - enabling use in industrial HMI, vision systems, and EV charging gateways.

For engineers reviewing the MIMX9351CVTXMAB datasheet, MIMX9351CVTXMAB pinout, MIMX9351CVTXMAB application, or MIMX9351CVTXMAB equivalent, key selection criteria include its single-A55 + M33 asymmetric architecture, industrial temperature range (–40°C to +105°C), 14 × 14 mm FCBGA306 package, GDET-disabled configuration, and support for TSN-capable Ethernet and secure boot via EdgeLock® enclave.

Technical Context

The MIMX9351CVTXMAB implements a heterogeneous compute architecture: the Cortex-A55 handles Linux-based application workloads while the Cortex-M33 manages real-time control, sensor preprocessing, and low-power monitoring - with hardware-isolated domains enforced by Arm TrustZone-A/M and TRDC. Its NPU delivers integer-based inference acceleration optimized for 8-bit/16-bit RNNs and 8-bit weights, targeting edge AI tasks without requiring external accelerators.

Connectivity is segmented across dedicated subsystems: dual GbE controllers operate independently (one with IEEE 802.1AS/TSN), FlexCAN modules support CAN-FD for industrial networking, and three uSDHC interfaces enable flexible storage (eMMC 5.1, SDXC, SDIO). Memory subsystem includes 640 KB on-chip RAM with ECC, 256 KB L3 cache, and a 16-bit LPDDR4X interface supporting up to 2 GB with inline ECC.

Key Specifications

Pinout & Package

Package: 14 × 14 mm Fine-Pitch Ball Grid Array (FCBGA306), 0.65 mm pitch, 306-ball layout with defined power/ground ball map per NXP's i.MX 93 Package Information document.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MIMX9352CVTXMAC, MIMX9351CVTXMAB trades core count for lower dynamic power and simpler thermal management; versus MIMX9331CVVXMAB, it retains identical compute performance but adds NPU acceleration and uses the larger 14 × 14 mm package for improved signal integrity on high-speed interfaces like TSN Ethernet and MIPI.

Availability

MIMX9351CVTXMAB is available at Aetrix Electronics and suitable for industrial HMI, EV charging infrastructure, and energy grid monitoring requiring stable component supply across extended product lifecycles.

Supply support for MIMX9351CVTXMAB 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with headquarters in Eindhoven, Netherlands.

The i.MX 93 family - including MIMX9351CVTXMAB - was designed specifically for power-constrained, safety-critical industrial edge applications requiring real-time responsiveness, hardware-enforced security, and heterogeneous compute for AI-enhanced sensing and control.

FAQ

What is the maximum operating junction temperature for MIMX9351CVTXMAB?

The MIMX9351CVTXMAB is rated for industrial temperature operation with a junction temperature range of –40°C to +105°C. This specification is validated per JEDEC JESD22-A104 and applies under continuous operation with proper thermal design - including adherence to the 21.7°C/W RθJA value for the 14 × 14 mm FCBGA306 package on a 2s2p test board.

Does MIMX9351CVTXMAB support Time-Sensitive Networking (TSN) out of the box?

Yes, MIMX9351CVTXMAB includes dedicated hardware acceleration for TSN protocols including IEEE 802.1AS (time synchronization), 802.1Qbv (time-aware shaper), and 802.1Qbu (frame preemption) on its second Gigabit Ethernet controller. No external switch or timing IC is required to implement TSN-compliant industrial networks.

How is the Neural Processing Unit (NPU) in MIMX9351CVTXMAB configured and used?

The NPU in MIMX9351CVTXMAB is a fixed-function accelerator supporting 8-bit and 16-bit integer RNNs with 8-bit weights, delivering up to 512 GOPS peak throughput. It is accessed via NXP's eIQ™ software stack and requires model quantization using TensorFlow Lite Micro or PyTorch - no runtime reconfiguration or custom firmware loading is supported.

What boot sources does MIMX9351CVTXMAB support, and how is secure boot enforced?

MIMX9351CVTXMAB supports boot from FlexSPI NOR/NAND flash, uSDHC (eMMC/SD), and SPI NOR. Secure boot is enforced through EdgeLock® Secure Enclave, which verifies signed boot images using ECDSA-P256 before releasing the Cortex-A55 from reset - with keys stored in one-time-programmable eFuses and protected by tamper-detection circuitry.

Can MIMX9351CVTXMAB drive both MIPI CSI-2 and MIPI DSI simultaneously?

Yes, MIMX9351CVTXMAB integrates independent MIPI CSI-2 (2-lane) and MIPI DSI (4-lane) PHYs that operate concurrently. The Image Sensor Interface (ISI) feeds processed frames to memory, while the LCDIF Display Controller drives the DSI output - enabling simultaneous camera capture and high-resolution display output without resource contention.