MC9328MX21SCVM

The MC9328MX21SCVM is an NXP i.MX21-series microprocessor featuring an ARM926EJ‑S 32‑bit core running at 266 MHz. Architected for compact embedded applications, the device combines a power‑efficient processor core with a broad set of on‑chip peripherals and memory controllers to simplify system design.

Designed and qualified for industrial use, this device targets handheld and embedded systems that require integrated display interfaces, storage controllers and I/O options while maintaining low power operation and robust system functions.

Key Features

• Processor Core ARM926EJ‑S single 32‑bit core running at 266 MHz, providing Java support and power‑efficient processing for embedded applications.
• Memory and Storage Controllers Integrated SDRAM controller and a NAND Flash controller with on‑chip ECC and parity checking to offload error management and simplify non‑volatile storage implementations.
• Display and User Interface On‑chip LCD controller plus keypad interface support for compact user interfaces and local display control.
• USB and Expansion USB On‑The‑Go and host support along with two USB 1.x ports and multiple expansion interfaces including PCMCIA/CF and MMC/SD host controllers for flexible connectivity and external memory expansion.
• Serial and Audio Interfaces Multiple serial interfaces including I2C, UARTs, synchronous serial ports (SSI), CSPI channels and an audio multiplexer to support audio, sensor and peripheral communications.
• System Control and Debug Integrated timers (x3), watchdog (WDO), JTAG/Multi‑ICE support and standard system I/O for reliable system management and development visibility.
• Power and Efficiency Series architecture emphasizes power efficiency and includes integrated peripherals to reduce external BOM and overall system power consumption.
• Package and Mounting 289‑pin MAPBGA (17 mm × 17 mm) package in tray format, optimized for surface‑mount assembly.
• Industrial Qualification and Temperature Range Industrial qualification with an operating temperature range of −40 °C to 85 °C for deployment in industrial and ruggedized environments.

Typical Applications

• Portable Handheld Devices — Integrated LCD controller, keypad support and power‑efficient ARM926EJ‑S core make this device suitable for handheld user interfaces and portable products.
• Industrial Control and Instrumentation — Industrial qualification and wide operating temperature range allow deployment in control panels and field instruments requiring robust operation.
• Embedded Storage Systems — On‑chip NAND Flash controller with ECC and support for MMC/SD and PCMCIA/CF expansion enable cost‑sensitive local storage solutions.
• Connectivity and Peripheral Hubs — USB OTG/host, multiple serial interfaces and expansion controller support make the device a good fit for embedded hubs and peripheral aggregation functions.

Unique Advantages

• Highly integrated peripheral set: LCD controller, USB OTG/host, NAND controller, serial interfaces and audio mux reduce external component count and simplify board design.
• On‑chip ECC and parity for NAND: Built‑in error correction and parity checking offload storage reliability tasks from the CPU and streamline firmware development.
• Industrial‑grade operation: Qualification and −40 °C to 85 °C operating range support deployment in demanding environments.
• Compact BGA package: 289‑pin MAPBGA (17×17 mm) offers a space‑efficient solution for high‑function embedded designs using surface‑mount assembly.
• Development and debug support: JTAG/Multi‑ICE and multiple system I/O resources facilitate bring‑up and debugging during development.

Why Choose MC9328MX21SCVM?

The MC9328MX21SCVM combines an ARM926EJ‑S 266 MHz core with a broad set of integrated controllers and interfaces to deliver a compact, power‑efficient foundation for embedded and handheld products. Its on‑chip NAND controller with ECC, LCD and keypad support, USB OTG/host capability, and multiple serial interfaces reduce BOM complexity and accelerate time‑to‑market.

This industrially qualified microprocessor is appropriate for engineers building robust, space‑constrained systems that require reliable storage, user interface capabilities and flexible connectivity. The combination of integration, debug support and industrial temperature operation provides long‑term value for production deployments and iterative design cycles.

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