NXP Semiconductors MCIMX257DVM4

Overview

MCIMX257DVM4 from NXP Semiconductors (formerly Freescale) is an ARM926EJ-S-based multimedia applications processor operating at up to 400 MHz, featuring 128 KB on-chip SRAM, integrated 10/100 Ethernet MAC, dual USB PHYs (HS OTG + FS Host), and LCD controller with alpha blending. It targets industrial HMI, residential gateways, and handheld scanners requiring deterministic real-time response and low-power operation.

For engineers reviewing the MCIMX257DVM4 datasheet, MCIMX257DVM4 pinout, MCIMX257DVM4 application, or MCIMX257DVM4 equivalent, this page delivers verified package mapping, confirmed peripheral integration (FlexCAN, ESAI, CSI, SIM), thermal and voltage operating limits, and validated alternative parts for industrial embedded design continuity.

Technical Context

The MCIMX257DVM4 implements a single ARM926EJ-S core with 16 KB L1 instruction and 16 KB L1 data cache, executing in Little Endian mode only. Its memory subsystem supports DDR2 at up to 133 MHz and includes dedicated controllers for NAND Flash, NOR Flash, PSRAM, and SD/SDIO/MMC.

Peripherals include two FlexCAN 2.0B modules, one ESAI interface, dual CSI ports, two SIM interfaces, and a Smart DMA (SDMA) engine with 32 channels. Security features comprise DryIce tamper detection, secure boot, hardware RNG, and IIM fuse-based key storage - all confirmed for the MCIMX257 variant per Table 2 of IMX25CEC Rev. 10.

Key Specifications

Pinout & Package

MCIMX257DVM4 uses a 400-ball MAPBGA package (Case 5284), 17 mm × 17 mm, 0.8 mm pitch. Ball map and signal assignments are defined in Section 4.3 and Figure 4.4 of IMX25CEC Rev. 10.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCIMX257DVM4, MCIMX253DVM4 removes critical industrial peripherals (FlexCAN, ESAI) but retains core compute and connectivity, while MCIMX257CJM4A extends thermal range without functional change - enabling precise selection based on environmental and interface requirements.

Availability

MCIMX257DVM4 is available at Aetrix Electronics and suitable for industrial HMI, residential gateways, and handheld scanners requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for MCIMX257DVM4 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's embedded processor heritage.

The i.MX25 product line was designed specifically for cost-sensitive, power-constrained industrial and consumer embedded systems requiring rich multimedia, robust connectivity, and hardware security - with MCIMX257DVM4 representing the full-featured variant for demanding HMI and gateway applications.

FAQ

What is the maximum operating frequency of the MCIMX257DVM4 processor core?

The MCIMX257DVM4 integrates an ARM926EJ-S core rated for operation up to 400 MHz. This frequency is achievable under specified DC operating conditions: core supply QVDD must be maintained between 1.38 V and 1.52 V, and ambient temperature must remain within the –20°C to +70°C range. The MCIMX257DVM4 datasheet (IMX25CEC Rev. 10, Table 6) confirms these voltage and thermal constraints for sustained 400 MHz operation.

Does the MCIMX257DVM4 include integrated USB physical layer transceivers?

Yes, the MCIMX257DVM4 includes two fully integrated USB PHYs: a high-speed (480 Mbps) USB 2.0 OTG PHY and a full-speed (12 Mbps) USB 2.0 Host PHY. These are documented in the Features section (page 2) and electrical characteristics (Table 11) of IMX25CEC Rev. 10. No external USB transceiver IC is required for basic USB functionality, though proper PCB layout (e.g., 33 Ω series resistors on USBPHY1_DM/DP) is mandatory per Section 2.1 signal considerations.

What security features are unique to the MCIMX257DVM4 compared to the MCIMX253DVM4?

Unlike the MCIMX253DVM4, the MCIMX257DVM4 includes DryIce tamper detection circuitry, secure boot enforcement via IIM fuses, and hardware RNG - all confirmed in Table 2 (i.MX25 Parts Functional Differences) of IMX25CEC Rev. 10. These features enable secure timekeeping, key erasure on physical intrusion, and cryptographically strong random number generation, making MCIMX257DVM4 suitable for payment terminals and smart metering where MCIMX253DVM4 lacks required security primitives.

What package type and ball count does the MCIMX257DVM4 use?

The MCIMX257DVM4 uses a 400-ball MAPBGA package (Case 5284), measuring 17 mm × 17 mm with 0.8 mm pitch. This is explicitly stated in Table 1 (Ordering Information) and detailed in Section 4.1 ("400 MAPBGA-Case 17x17 mm, 0.8 mm Pitch") of IMX25CEC Rev. 10. The ball map and signal assignments are provided in Figures 4.4 and 4.3, confirming compatibility with standard i.MX25 400-ball footprint layouts.

Can the MCIMX257DVM4 support both DDR2 and NAND Flash memory simultaneously?

Yes, the MCIMX257DVM4 supports concurrent DDR2 and NAND Flash operation through its External Memory Interface (EMI) module, which contains independent submodules: ESDCTL for DDR2/SDR and NFC for NAND Flash. As described in Table 3 (page 6) and Section 3.7 (Module Timing), the EMI arbitrates access between masters, allowing the ARM9 core to execute from DDR2 while the SDMA engine streams data from NAND - a capability confirmed for the MCIMX257 variant in the i.MX25 family documentation.