MCIMX257CVM4 - i.MX25 ARM926 MPU 400MHz 400-LFBGA | NXP
MPN： MCIMX257CVM4 ✓ 啟用中MCIMX257CVM4 概覽
An ARM926EJ-S based microprocessor is a 32-bit RISC application processor with an MMU, DSP extensions, and tightly coupled memory that runs a memory management unit capable of running full operating systems such as Linux, WinCE, or a real-time OS. Within the broader hierarchy, this places the i.MX25 in the application processor class of embedded microprocessors (MPU), sitting above microcontrollers (MCU) and below higher-performance Cortex-A application processors. NXP positions the i.MX25 line for low-power, cost-sensitive human-machine interface (HMI) and connected device designs.
Key features of the MCIMX257CVM4 include a 400 MHz ARM926EJ-S core with 16 KB I-cache and 16 KB D-cache, a 400-ball LFBGA (17x17 mm) package, integrated LCD and image-processing peripherals, multiple connectivity options including USB and Ethernet MAC, and an industrial temperature grade. Compared with higher-tier i.MX applications processors, the i.MX25 trades peak CPU frequency for lower system BOM cost and lower active power.
Architecturally, the i.MX25 combines the ARM926EJ-S core with a multi-layer bus matrix, an image-processing unit (IPU) for LCD driving, and a hardware encryption accelerator. The integrated peripherals remove the need for companion display or image controllers, simplifying board layout and shrinking BOM cost for terminal-style products.
Typical applications include human-machine interface (HMI) panels, industrial control terminals, point-of-sale (POS) terminals, and connected consumer electronics that need an LCD controller and ARM117-class CPU performance at low power. The wide peripheral set also suits networked printers, smart-grid terminals, and remote sensor gateways.
When designing with this device, pay close attention to power-rail sequencing and DDR/SDRAM signal integrity; the part requires a properly terminated memory bus for stable operation at 400 MHz. PCB designers should follow NXP's i.MX25 hardware development guide for stack-up and decoupling.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 MCIMX257CVM4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MCIMX257CVM4 （相同外形與佔位） — 差異在於 Package, Core Architecture, Touchscreen Controller, USB, Data Bus Width.
MCIMX257CJM4A
✅ 直接替換聯絡詢價
查看資料表 →MCIMX255AJM4
✅ 直接替換聯絡詢價
查看資料表 →MCIMX255AVM4
✅ 直接替換聯絡詢價
查看資料表 →MCIMX6X4CVM08AC
✅ 直接替換聯絡詢價
查看資料表 →MCIMX6U7CVM08AB
✅ 直接替換📋 參考替代品（不在目錄中）
MCIMX257CVM4 最大額定值與電氣特性
| Core Architecture | ARM926EJ-S |
| Core Count | 1 |
| 資料匯流排寬度 | 32-bit |
| Maximum CPU Clock | 400 MHz |
| Series | i.MX25 |
| Family | SENNA IMX25 INDUST |
| 封裝 | 400-LFBGA (17x17 mm) |
| 安裝類型 | Surface Mount |
| Temperature Grade | Industrial |
| Integrated Peripherals | LCD controller, USB, Ethernet MAC, image processing unit |
MCIMX257CVM4 400-lfbga (17x17 mm) 腳位配置指南
MCIMX257CVM4（400-lfbga (17x17 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MCIMX257CVM4.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCIMX257CVM4 適用於 6 應用s: Industrial HMI Panels, Point-of-Sale (POS) Terminals, Connected Consumer Electronics, Networked Printers and MFDs, Smart-Grid and Metering Terminals, Remote Sensor Gateways.
Industrial HMI Panels
The MCIMX257CVM4's 400 MHz ARM926EJ-S core with integrated image processing unit (IPU) and LCD controller makes it a strong fit for industrial human-machine interface (HMI) panels. It drives TFT LCDs up to the resolution defined in the i.MX25 datasheet without an external display controller, simplifying the BOM. The industrial temperature grade and Linux BSP support allow continuous operation on factory floors with Qt-based GUIs and touchscreen overlays. Compared with a discrete MCU + graphics controller, BEV-supported architecture cuts part count and PCB area.
推薦
Point-of-Sale (POS) Terminals
POS terminals benefit from the MCIMX257CVM4's ARM926EJ-S core running at 400 MHz, which can handle encrypted payment flows, barcode scanning, and a touchscreen GUI simultaneously under Linux. The integrated USB and Ethernet MAC peripherals support printer, scanner, and LAN connectivity without extra chips. Unlike higher-cost Cortex-A POS designs, the i.MX25 keeps the BOM low while delivering enough compute for typical retail transaction times.
推薦
Connected Consumer Electronics
Smart-home hubs and connected appliances leverage the MCIMX257CVM4's Ethernet MAC, USB, and LCD controller to deliver a low-cost networked UI appliance. The ARM926EJ-S at 400 MHz runs lightweight Linux stacks (Yocto, Buildroot) for MQTT, cloud connectivity, and local control. Power consumption stays low enough for always-on designs, and the industrial temperature grade supports appliance and metering enclosures.
推薦
Networked Printers and MFDs
Multi-function printers and networked printers use the MCIMX257CVM4 to drive the control panel LCD, scan engine, network stack, and job queue. The 400 MHz ARM926EJ-S core handles PCL/PostScript interpretation and the integrated peripherals (USB, Ethernet) connect directly to host PCs and network. Industrial temperature operation supports the thermal environment inside printer enclosures.
推薦
Smart-Grid and Metering Terminals
Smart-grid terminals and advanced metering infrastructure benefit from the MCIMX257CVM4's industrial temperature grade, ARM926EJ-S core, and integrated LCD. It can drive a user-facing display, run secure communication stacks, and interface to metering ASICs via UART/SPI/I2C. Linux support with security extensions makes it suitable for encrypted AMI deployments requiring long product lifecycles.
推薦
Remote Sensor Gateways
Industrial IoT gateways that aggregate sensor data and forward to cloud services use the MCIMX257CVM4 to run lightweight Linux plus MQTT or CoAP stacks. The 400 MHz ARM926EJ-S handles multiple serial sensor buses (UART, SPI, I2C) via the integrated peripherals, and the Ethernet MAC provides the uplink. Low active power supports always-on remote installations where the gateway may be solar- or battery-powered.
推薦
推薦產品摘要
工程參考資料，適用於 MCIMX257CVM4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MCIMX257CJM4A | MCIMX255AJM4 | MCIMX255AVM4 | MCIMX6X4CVM08AC | MCIMX6U7CVM08AB |
|---|---|---|---|---|---|---|
| Package | 400-LFBGA (17x17 mm) | 400-LFBGA | 400-MAPBGA | 400-LFBGA (17x17) | 400-MAPBGA | 400-MAPBGA |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | Cortex-A class | Cortex-A class |
| Max CPU Clock | 400 MHz | 400 MHz | 400 MHz | 400 MHz | up to 800 MHz | up to 800 MHz |
| Series | i.MX25 | i.MX25 | i.MX25 | i.MX25 | i.MX6 | i.MX6 |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial | Industrial | Industrial |
| Integrated LCD Controller | Yes (IPU) | Yes (IPU) | Yes (IPU) | Yes (IPU) | Yes (enhanced) | Yes (enhanced) |
| Integrated Ethernet MAC | Yes | Yes | Yes | Yes | Yes | Yes |
| Datasheet Availability | Yes | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- Industrial-grade i.MX25 with integrated IPU (對比MCIMX255AJM4)
- Same 400-ball LFBGA footprint as i.MX6 family (對比MCIMX6X4CVM08AC)
- ARM926EJ-S with MMU supports full Linux (對比Cortex-M class MCUs)
設計說明
The 400-ball LFBGA at 0.8 mm pitch requires a 4-6 layer PCB stack-up with dedicated ground and power planes. Follow NXP's i.MX25 hardware design guide for stack-up thickness, via-in-pad recommendations, and trace impedance targets. Use X-ray inspection post-reflow because BGA joints are not visible optically.
DDR/SDRAM termination and supply sequencing are critical for i.MX25 stability at 400 MHz. Use the recommended NXP power sequencing circuit and place decoupling capacitors within 2 mm of each supply ball. Estimated: a 4-layer board with proper decoupling typically holds core rail ripple under 30 mV peak-to-peak.
Industrial temperature grade i.MX25 parts are specified for -40C to +85C ambient operation. At 400 MHz the SoC dissipates a few hundred milliwatts depending on peripheral activity; provide a copper pour under the LFBGA thermal pad to spread heat. Enclosure designers should account for the SoC as the warmest component in sealed HMI housings.
Do not substitute a higher-clock i.MX6 family part (e.g. MCIMX6X4CVM08AC) without revalidating software. The i.MX6 uses Cortex-A cores and requires porting the entire BSP, even if the BGA footprint is similar. Use same-family i.MX25 variants for true drop-in replacements; treat i.MX6 as a redesign path.
合規資訊
RoHS and REACH compliance inferred from NXP product family standards; specific certificates available on request from NXP. Not AEC-Q100 qualified - this is an industrial-grade part, not automotive. Cross-brand compliance data not available in Verified Web Data.
