NXP Semiconductors MCIMX233CAG4B

Overview

MCIMX233CAG4B from NXP is an ARM926EJ-S™-based 32-bit multimedia applications processor operating at up to 454 MHz, integrating power management, stereo analog audio ADC/DAC with headphone and 1.5 W mono speaker amplifiers, 12-bit LRADC, LCDIF (8-bit serial), and hardware pixel pipeline (PXP) for VGA (640×480) display acceleration - deployed in portable media players and industrial HMI panels.

For engineers reviewing the MCIMX233CAG4B datasheet, MCIMX233CAG4B pinout, MCIMX233CAG4B application, or MCIMX233CAG4B equivalent, key selection considerations include its -40°C to +85°C industrial temperature grade, 128-pin LQFP package with 1 debug + 1 application UART, 2 A/D channels, single I2S interface, and absence of mono speaker amplifier and rotary encoder - all confirmed in NXP's IMX233FS REV 1 fact sheet.

Technical Context

The MCIMX233CAG4B implements an Arm926EJ-S core with 16 KB I-cache and 16 KB D-cache, clocked to 454 MHz, and integrates on-die DC-DC converters supporting Li-Ion battery input and USB/wall power sources. Its memory subsystem includes 32 KB SRAM, boot ROM, and interfaces for DDR1, mDDR, NAND (with 20-bit BCH or 8-bit Reed-Solomon ECC), and managed NAND via SDIO.

Connectivity comprises HS USB Host/Device with integrated PHY, two SPIs, I²C, one debug + one application UART, and a 12-bit low-resolution ADC (LRADC) with two input channels. The multimedia subsystem delivers VGA-optimized LCDIF (8-bit serial only), PXP-based frame preprocessing, S/PDIF Tx, and stereo analog audio with headphone amp - but excludes mono speaker amp, TV encoder, and second I2S channel present in the BGA variant.

Key Specifications

Pinout & Package

MCIMX233CAG4B is housed in a 128-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch), optimized for cost-sensitive, low-complexity PCB layouts requiring ≤2 layers. Pin functions align with the i.MX233 LQFP signal mapping defined in NXP's IMX233FS REV 1 documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCIMX233CAG4B, MCIMX233CJM4C enables richer multimedia I/O and display bandwidth at the cost of PCB complexity, while i.MX283 trades some analog integration for CAN and advanced security - making MCIMX233CAG4B optimal for cost-driven, non-touch, audio-centric embedded UIs.

Availability

MCIMX233CAG4B is available at Aetrix Electronics and suitable for portable media players, industrial HMI panels, and home automation gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MCIMX233CAG4B 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 markets.

The i.MX233 product line delivers cost-optimized, low-power ARM9-based SoCs targeting battery-operated consumer and industrial UI devices - emphasizing analog integration, NAND reliability, and simplified power architecture.

FAQ

What is the maximum operating frequency of the MCIMX233CAG4B?

The MCIMX233CAG4B features an Arm926EJ-S™ core rated for operation up to 454 MHz. This frequency is guaranteed across its full industrial temperature range (-40°C to +85°C) and supported by on-chip PLL and clock gating logic. The MCIMX233CAG4B achieves this performance while maintaining low dynamic power through integrated DC-DC regulation and multiple low-power states.

Does the MCIMX233CAG4B support NAND flash with error correction?

Yes, the MCIMX233CAG4B supports NAND flash with hardware-based error correction, including both 20-bit BCH and 8-bit Reed-Solomon algorithms. This capability applies to SLC, MLC, and managed NAND devices accessed via the GPMI interface. The MCIMX233CAG4B uses this ECC during boot and runtime operations to ensure data integrity and extend flash endurance in embedded storage applications.

Is the MCIMX233CAG4B pin-compatible with other i.MX233 variants?

No, the MCIMX233CAG4B is not pin-compatible with i.MX233 BGA variants such as MCIMX233CJM4C. It uses a 128-pin LQFP package, whereas BGA versions use 169-ball MAPBGA. Signal mapping, power domains, and peripheral availability differ significantly between packages - requiring separate PCB designs. The MCIMX233CAG4B shares no mechanical or electrical pinout equivalence with other i.MX233 part numbers.

What audio interfaces does the MCIMX233CAG4B provide?

The MCIMX233CAG4B provides stereo analog audio ADC/DAC with integrated headphone amplifier, S/PDIF digital output, and one Serial Audio Interface (I2S). It does not include the mono speaker amplifier or second I2S channel found in the BGA variants. These audio resources allow direct connection to headphones, external DACs, or digital audio receivers - making the MCIMX233CAG4B suitable for compact audio-peripheral designs.

Can the MCIMX233CAG4B boot from internal storage?

No, the MCIMX233CAG4B lacks internal non-volatile program storage and requires external boot media. It supports booting from NAND flash (SLC/MLC/managed), SD/microSD cards via SDIO, or serial NOR flash using the SPI interface. Boot code executes from internal 32 KB SRAM after copying from external storage - a process managed by the on-chip ROM bootloader in the MCIMX233CAG4B.