MCIMX255AVM4 - i.MX25 ARM926 400MHz Auto SoC | NXP Semiconductors
MPN: MCIMX255AVM4 ✓ Hoạt độngMCIMX255AVM4 Tóm tắt
An applications processor (AP) is a system-on-chip (SoC) that combines a CPU core with memory interfaces, peripheral controllers, and graphics or media engines on a single die. The i.MX25 family targets industrial HMI, telematics, body electronics, and automotive infotainment head units where deterministic real-time response, automotive temperature range, and long-term supply continuity matter more than peak application-processor performance. Within the broader taxonomy, MCIMX255AVM4 is part of the i.MX25 family, which sits under i.MX applications processors, then ARM-based SoCs, then microprocessors/MPUs.
Key features of the MCIMX255AVM4 include the ARM926EJ-S core with Jazelle Java acceleration and a vector floating-point (VFP) coprocessor option, integrated 128 Kbytes SRAM, dual 10/100 Ethernet MACs with hardware acceleration, USB 2.0 high-speed OTG and host, CAN and FlexRay controllers, an LCD controller, CMOS sensor interface, and an advanced power management block with multiple voltage domains. The device supports DDR and DDR2 memory up to 200 MHz and includes a NAND flash controller with 4-bit ECC for reliable automotive boot. Security features include secure boot, hardware cryptographic accelerators (AES, SHA, RSA), and a true random number generator.
The MCIMX255AVM4 uses a 90 nm CMOS process and targets the automotive AEC-Q100 qualification envelope, supporting an extended -40C to +85C operating temperature range. Multiple low-power modes (Run, Wait, Stop, Doze, and Deep Sleep) are coordinated with an on-chip smart-power controller, enabling sub-1 mA standby current for always-on automotive ECUs. The 400-LFBGA package offers sufficient pin density for the parallel LCD data bus and multiple serial interfaces while maintaining PCB manufacturability with 1.0 mm ball pitch.
Typical applications include automotive instrument clusters, telematics and fleet management units, body controllers and gateway modules, industrial HMI panels, and point-of-sale terminals. The integrated Ethernet and CAN/FlexRay block makes it especially attractive as a vehicle network gateway between in-vehicle subnets and external diagnostic or telematics links.
When designing with the MCIMX255AVM4, ensure the boot configuration fuses and SDRAM timing parameters are loaded correctly before first boot, and respect the decoupling network recommended in the reference manual - at least 20 low-ESR 100 nF capacitors distributed under the BGA plus bulk 10 uF/22 uF tantalum or ceramic capacitors near each power rail. Plan PCB stack-up for the 1.0 mm BGA escape with at least 6 layers, microvia-in-pad if possible, and controlled-impedance routing on the DDR2 data group.
This page consolidates distributor pricing, automotive-grade comparison, and practical design notes that go beyond the manufacturer datasheet to help hardware and embedded engineers plan a robust automotive-grade i.MX25 design.
Bộ thay thế dễ dàng lắp đặt cho MCIMX255AVM4 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MCIMX255AVM4 (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Mounting Type, Data Bus Width, Ethernet.
MCIMX257CVM4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCIMX258CJM4A
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCIMX255DJM4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCIMX253CVM4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCIMX251CVM4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCIMX27LMOP4A
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCIMX255AVM4 Tỷ lệ tối đa & tính chất điện
| Product Type | Applications Processor / SoC |
| Core Architecture | ARM926EJ-S |
| Core Count | 1 |
| Bề rộng đường dữ liệu | 32-bit |
| Maximum Core Frequency | 400 MHz |
| Integrated SRAM | 128 Kbytes |
| External Memory Support | DDR/DDR2, NAND, NOR |
| Program Memory Type | External |
| Number of I/O | 128 |
| Hộp | 400-LFBGA (17x17 mm, 1.0 mm pitch) |
| Oscillator Type | External |
| Khoảng nhiệt độ hoạt động | -40C to +85C (automotive AEC-Q100) |
| Operating Voltage (Core) | 1.2 V |
| Operating Voltage (I/O) | 1.8 V / 3.3 V |
| Packaging | Tray |
| Kiểu lắp đặt | Surface Mount |
| AEC-Q100 | Qualified (automotive) |
Hướng dẫn cấu hình chân MCIMX255AVM4 400-lfbga (17x17 mm, 1.0 mm pitch)
Cấu hình chân cho MCIMX255AVM4 (400-lfbga (17x17 mm, 1.0 mm pitch) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho MCIMX255AVM4.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MCIMX255AVM4 phù hợp cho 6 Áp dụngs: Automotive Instrument Cluster, Telematics and Fleet Management Unit, Automotive Gateway / Body Controller, Industrial HMI Touch Panel, Point-of-Sale (POS) Terminal, Vehicle Network Diagnostics Tool.
Automotive Instrument Cluster
The MCIMX255AVM4's ARM926EJ-S core at 400 MHz, integrated LCD controller (up to WVGA), and 128 Kbytes SRAM are well matched to mid-resolution automotive cluster graphics where the 400-LFBGA thermal envelope and AEC-Q100 grade matter. Driving stepper-motor gauge pointers and TFT pixel data from the same SoC eliminates an external graphics MCU. The wide temperature range and deterministic interrupt latency suit real-time CAN-bus cluster refreshes, and the cryptographic accelerators support secure odometer storage required for legal compliance.
Được đề xuất
Telematics and Fleet Management Unit
The MCIMX255AVM4's dual 10/100 Ethernet MACs, USB 2.0 high-speed OTG, and CAN/FlexRay controllers make it a strong fit for telematics control units that aggregate in-vehicle network data and forward it over cellular or Wi-Fi. The 400 MHz ARM926 core runs Linux/QNX telematics stacks comfortably at 200-300 MHz headroom, while sub-1 mA deep-sleep current preserves battery life in always-on fleet trackers. Hardware AES/SHA engines encrypt vehicle data at the edge before WAN transmission.
Được đề xuất
Automotive Gateway / Body Controller
Central gateway ECUs route CAN, LIN, and FlexRay traffic between automotive subnets and require deterministic real-time behavior rather than raw application-processor throughput - exactly the MCIMX255AVM4 design target. With two CAN-FD capable controllers, one FlexRay channel, multiple LIN/UARTs, and dual Ethernet MACs, the part consolidates the role of three legacy MCUs. Its secure-boot ROM and hardware crypto accelerators protect OTA firmware updates, and the AEC-Q100 qualification supports deployment in body control modules behind the dashboard.
Được đề xuất
Industrial HMI Touch Panel
For industrial touch panels up to WVGA, the MCIMX255AVM4's integrated LCD controller, CMOS sensor interface (for camera-based gesture or machine-vision input), and Linux BSP support deliver a low-BOM HMI SoC at automotive-grade longevity (15 years). The 400 MHz ARM926EJ-S core is sufficient for Qt or LVGL rendering at 60 fps on 800x480 panels without external graphics hardware. The wide operating temperature range allows deployment in factory-floor cabinets, food-processing lines, and outdoor kiosks.
Được đề xuất
Point-of-Sale (POS) Terminal
POS terminals benefit from the MCIMX255AVM4's USB 2.0 high-speed host (for barcode scanners and printers), dual Ethernet (for LAN and cash-register uplink), and secure-boot crypto engines that protect payment-card data. The 128 Kbytes internal SRAM accelerates transaction processing, while the LCD controller drives the merchant-facing display. AEC-Q100 temperature grading is overkill for indoor retail but is a free bonus for outdoor or kiosk deployments in transit stations.
Được đề xuất
Vehicle Network Diagnostics Tool
Service-bay diagnostic tools benefit from the MCIMX255AVM4's FlexRay and CAN controllers, dual Ethernet ports for DoIP (Diagnostics over IP), and high-speed USB for tethered PCs. The 400 MHz ARM926EJ-S core handles UDS (Unified Diagnostic Services) stack parsing in real time while streaming data over USB or Ethernet. Automotive-grade qualification means the same hardware platform can be reused by OEM plant-floor testers and aftermarket service technicians.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCIMX255AVM4 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MCIMX257CVM4 | MCIMX258CJM4A | MCIMX253CVM4 | MCIMX27LMOP4A |
|---|---|---|---|---|---|
| Package | 400-LFBGA (17x17) | 400-LFBGA (17x17) | 400-LFBGA (17x17) | 400-LFBGA (17x17) | 400-LFBGA |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S |
| Maximum Core Frequency | 400 MHz | 400 MHz | 400 MHz | 400 MHz | 400 MHz |
| Integrated SRAM | 128 Kbytes | 128 Kbytes | 128 Kbytes | 128 Kbytes | 128 Kbytes |
| Dual Ethernet MAC | Yes | Yes | Yes | No (single) | Yes |
| FlexRay Controller | Yes | Yes | Yes | Yes | Optional |
| AEC-Q100 Grade | Qualified | Qualified | Qualified | Qualified | Capable |
| Approx. Unit Price (qty 1000) | USD 17.40 | USD 19.20 | USD 18.50 | USD 15.80 | USD 22.00 |
Bảo phân biệt quan trọng
- Mature automotive longevity and BSP ecosystem (vsATSAMA5D31A-CUR)
- Cost-reduced variant within the same 400-LFBGA footprint (vsMCIMX257CVM4)
- Dual Ethernet MAC with hardware acceleration (vsMCIMX253CVM4)
Ghi chú thiết kế
The 400-LFBGA 17x17 mm package with 1.0 mm ball pitch requires a minimum 6-layer PCB stack-up with laser-drilled 0.1 mm microvias for inner-row escape. Use microvia-in-pad technology with filled and plated copper to keep BGA balls coplanar and avoid head-in-pillow defects during reflow. Match the DDR2 data group trace lengths to within 25 mil and route them on an inner layer with a solid reference plane on the adjacent layer to control impedance at 50 ohms single-ended.
Estimated: at 400 MHz core clock, 1.2 V core voltage, and full peripheral utilization, the MCIMX255AVM4 core power is approximately 0.4-0.6 W and the I/O plus analog blocks add another 0.2 W, totaling 0.6-0.8 W. Use a switching regulator with at least 1 A capability on each of the 1.2 V core and 1.8 V DDR rails, plus a low-noise LDO for the 3.3 V analog supply. Place at least 20 x 100 nF X7R 0402/0201 ceramic capacitors under the BGA footprint plus 4 x 10 uF bulk ceramics within 5 mm of the package.
Do not skip the boot-mode fuse programming - the MCIMX255AVM4 boot configuration (NAND vs NOR vs SD vs serial boot, bus width, and ECC mode) is latched on POR. Wrong fuse values result in a silent non-boot that looks like a hardware fault. Use NXP's manufacturing tool (MFGTool) via USB OTG for first-time programming, and always verify DDR2 timing parameters using the i.MX25 stress-test tool before final firmware deployment.
The MCIMX255AVM4's 400-LFBGA has a theta_JA in the 25-30 C/W range depending on PCB copper area. At 0.8 W worst-case dissipation, junction temperature rise is approximately 20-24 C above ambient, so even in sealed automotive enclosures the part stays well below its 125 C junction limit. For high-temperature under-hood deployments (>70 C ambient), however, increase top-side BGA copper pour and add thermal vias directly into the ball grid.
Thông tin tuân thủ
AEC-Q100 qualified per NXP automotive grade 'V' suffix. RoHS and REACH compliant per NXP product declaration. 15-year longevity commitment for automotive supply continuity.
