NXP Semiconductors MCIMX233DJM4B

Overview

MCIMX233DJM4B from NXP is an ARM926EJ-S™-based 454 MHz multimedia applications processor with integrated DC-DC power management, stereo analog audio ADC/DAC + headphone amplifier, 1.5 W mono speaker amplifier, 12-bit LRADC, and LCDIF supporting 24-bit VGA (640×480) displays - deployed in portable media players and graphical HMI panels.

For engineers reviewing the MCIMX233DJM4B datasheet, MCIMX233DJM4B pinout, MCIMX233DJM4B application, or MCIMX233DJM4B equivalent, key selection considerations include its 169-pin MAPBGA package, -10°C to +70°C industrial temperature range, integrated NAND ECC (20-bit BCH), PXP graphics pipeline, and dual I2S interface for multi-audio-path designs.

Technical Context

The MCIMX233DJM4B implements a single-core ARM926EJ-S CPU running at up to 454 MHz with 16 KB instruction and 16 KB data L1 cache, booting directly from SLC/MLC/managed NAND via hardware-accelerated 20-bit BCH or 8-bit Reed-Solomon error correction. It integrates a pixel processing pipeline (PXP) for hardware-accelerated display frame pre-processing including scaling, alpha blending, rotation, and color space conversion.

Its power architecture includes a multi-channel DC-DC converter supporting Li-Ion battery input (3.0–4.2 V), USB/wall adapter 5 V direct input, on-chip battery charging, and four independent low-dropout regulators (LDOs). The device features two I2S interfaces, two UARTs (one debug + one application), and a 128-pin-compatible subset of peripherals versus the full 169-pin feature set - though MCIMX233DJM4B itself uses the 169-pin MAPBGA.

Key Specifications

Pinout & Package

MCIMX233DJM4B is housed in a 169-ball MAPBGA package with 0.8 mm ball pitch, designed for high-density PCB layouts requiring full peripheral access. Pin assignments are defined in NXP document IMX233RM (i.MX233 Reference Manual), Rev. 4, Section 4.2 "Signal Descriptions".

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCIMX233DJM4B, MCIMX233CJM4C offers identical functionality with extended temperature qualification, while i.MX283 adds security and NAND robustness at the cost of higher BOM complexity and non-interchangeable packaging - making MCIMX233DJM4B optimal for cost-sensitive, thermally moderate portable media and HMI designs.

Availability

MCIMX233DJM4B is available at Aetrix Electronics and suitable for portable media players, graphical remote control devices, and industrial HMI panels requiring stable component supply across long-lifecycle production programs.

Supply support for MCIMX233DJM4B 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The i.MX233 product line delivers cost-optimized ARM9-based SoCs targeting battery-powered consumer and industrial devices needing integrated power, audio, display, and NAND boot - with emphasis on BOM reduction and rapid GUI deployment.

FAQ

What is the maximum operating frequency of the MCIMX233DJM4B?

The MCIMX233DJM4B features an ARM926EJ-S™ core rated for operation up to 454 MHz under specified voltage and temperature conditions. This frequency is achieved with 1.2 V core supply and validated across the -10°C to +70°C industrial temperature range. The MCIMX233DJM4B does not support dynamic frequency scaling beyond this fixed maximum, and sustained operation at 454 MHz requires adherence to NXP's thermal design guidelines in IMX233RM Section 5.3.

Does the MCIMX233DJM4B support booting directly from NAND flash?

Yes, the MCIMX233DJM4B supports direct boot from SLC, MLC, and managed NAND devices using on-chip hardware ECC engines - configurable for either 20-bit BCH or 8-bit Reed-Solomon correction. Boot ROM firmware validates NAND pages during startup, enabling reliable cold-boot without external boot ROM or SPI flash. This capability is confirmed in the MCIMX233DJM4B reference manual (IMX233RM Rev. 4, Section 11.4.1) and applies specifically to the MCIMX233DJM4B variant.

What audio interfaces are integrated into the MCIMX233DJM4B?

The MCIMX233DJM4B integrates stereo analog audio ADC/DAC with headphone amplifier, a 1.5 W mono Class-D speaker amplifier, two I2S interfaces, S/PDIF transmitter, and a 12-bit low-resolution ADC (LRADC) for touch and auxiliary analog sensing. These interfaces operate concurrently - for example, I2S0 can drive headphones while I2S1 handles microphone input, and S/PDIF outputs digital audio to external receivers - all without external codec ICs.

Is the MCIMX233DJM4B pin-compatible with other i.MX233 variants like MCIMX233DAG4C?

No, the MCIMX233DJM4B is not pin-compatible with MCIMX233DAG4C. MCIMX233DJM4B uses a 169-ball MAPBGA package, while MCIMX233DAG4C uses a 128-lead LQFP package with significantly reduced peripheral availability - including only one I2S interface, no mono speaker amplifier, and fewer UARTs and ADC channels. The two packages have entirely different pinouts, land patterns, and thermal profiles, requiring distinct PCB designs.

What display resolutions does the MCIMX233DJM4B's LCDIF support?

The MCIMX233DJM4B's LCD interface (LCDIF) supports up to 24-bit-per-pixel VGA resolution (640 × 480) in parallel RGB888 mode, as well as 8-bit serial interfaces for smaller displays. It includes hardware timing generators compliant with common TFT panel requirements and supports active matrix addressing with programmable polarity inversion. The LCDIF does not support HDMI, LVDS, or MIPI DSI outputs - external bridge ICs are required for those interfaces.