NXP Semiconductors MC9328MX1DVM20R2

Overview

MC9328MX1DVM20R2 from NXP Semiconductors (formerly Freescale) is an ARM920T™-based applications processor targeting portable information appliances and wireless communicators. It operates at 200 MHz, integrates LCD controller, USB Device, MMC/SD host controller, and SDRAM interface, and supports −30°C to 70°C industrial temperature range in a 225-ball MAPBGA package. It was used in Palm OS–based devices such as the Accompli 008 GSM/GPRS communicator.

For engineers reviewing the MC9328MX1DVM20R2 datasheet, MC9328MX1DVM20R2 pinout, MC9328MX1DVM20R2 application, or MC9328MX1DVM20R2 equivalent, key selection considerations include its 200 MHz ARM920T core, integrated multimedia peripherals (LCD, USB, SD), 1.7–1.9 V core voltage, 225-ball MAPBGA-1304B-01 package, and support for boot modes via BOOT[3:0] pins.

Technical Context

The MC9328MX1DVM20R2 implements the ARM920T core with Harvard architecture, MMU, 16 KB instruction and 16 KB data caches, and executes at 200 MHz with dynamic power management. Its system-level integration includes AHB-to-IP bus interfaces (AIPIs), external interface module (EIM), and dual clock domains - one driven by internal DPLL for core/peripherals and another from 32 kHz crystal for RTC.

It features dedicated hardware accelerators including Bluetooth Accelerator (BTA) and Multimedia Accelerator (MMA), alongside configurable signal multiplexing across all I/O pins (e.g., UART/SSI/SPI/USB signals share GPIO functions). The processor supports both big- and little-endian operation determined at reset by the BIG_ENDIAN pin state.

Key Specifications

Pinout & Package

MC9328MX1DVM20R2 is housed in a 225-ball Mold Array Process Ball Grid Array (MAPBGA), designated Case 1304B-01, with 0.8 mm ball pitch and 13 mm × 13 mm body size. Pin functions are highly multiplexed; primary signal assignments are fixed per BGA position, while alternate functions (e.g., GPIO, UART, SPI) are enabled via software-configurable GPIO registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9328MX1DVM20R2, i.MX21 offers higher clock speed and JPEG acceleration but demands PCB redesign, while OMAP-730 integrates cellular baseband at the cost of LCD controller removal - both require firmware and driver rework, making MC9328MX1DVM20R2 optimal for legacy Palm OS or standalone HMI reuse.

Availability

MC9328MX1DVM20R2 is available at Aetrix Electronics and suitable for industrial HMI terminals, legacy Palm OS handhelds, and wireless data communicators requiring stable component supply and long-term lifecycle support.

Supply support for MC9328MX1DVM20R2 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 (originally Freescale Semiconductor) is a global leader in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based microprocessors and edge computing SoCs.

The i.MX family - including MC9328MX1DVM20R2 - was designed specifically for portable, battery-powered information appliances requiring high integration, low power, and rich multimedia capability on a single chip.

FAQ

What is the maximum operating frequency of the MC9328MX1DVM20R2?

The MC9328MX1DVM20R2 operates at a maximum frequency of 200 MHz. This speed is achieved using the internal DPLL clock generator locked to a 16 MHz crystal input (EXTAL16M). The ARM920T core sustains this frequency under specified voltage (1.7–1.9 V) and temperature (−30°C to +70°C) conditions, as validated in Freescale's Rev. 7 datasheet. Performance-critical code benefits from the 16 KB instruction and data caches.

Does the MC9328MX1DVM20R2 support USB host functionality?

No, the MC9328MX1DVM20R2 only implements a USB 1.1 Device controller - it cannot act as a USB host. Its USBD_VP/USBD_VM pins provide full-speed (12 Mbps) device-only connectivity. To interface with USB peripherals like keyboards or flash drives, an external USB OTG transceiver or companion host controller IC is required. The MC9328MX1DVM20R2 datasheet explicitly lists "USB Device" under features, with no host-mode registers or PHY support.

What package type and ball count does the MC9328MX1DVM20R2 use?

The MC9328MX1DVM20R2 uses a 225-ball MAPBGA package, designated Case 1304B-01. It measures 13 mm × 13 mm with 0.8 mm ball pitch. This matches the "256-contact" reference in early documentation - a misstatement corrected in Rev. 7, which confirms 225 balls. The package supports standard reflow profiles and is compatible with automated PCB assembly processes used in consumer electronics manufacturing.

How is boot configuration controlled on the MC9328MX1DVM20R2?

Boot configuration on the MC9328MX1DVM20R2 is controlled by the BOOT[3:0] pins (BGA pins P12, R13, N12, P11), sampled at reset. These four inputs determine boot source (e.g., NOR flash, NAND flash, SD card, or internal ROM) and bus endianness. External pull-up/pull-down resistors set their state; the MC9328MX1DVM20R2 datasheet specifies default behavior and valid combinations in Table 1 and Section 1.1. No software configuration overrides this hardware strap.

Is the MC9328MX1DVM20R2 still in active production?

The MC9328MX1DVM20R2 is discontinued by NXP but remains available through authorized distributors and Aetrix Electronics' extended-life component program. It is supported under NXP's Product Longevity Program with guaranteed supply until at least 2027 for qualifying industrial customers. Obsolescence notices were issued in 2010; however, Aetrix maintains traceable inventory and offers lifecycle management services for legacy designs dependent on MC9328MX1DVM20R2.