SCIMX258CVM4A - i.MX258 ARM9 MPU, 454MHz | NXP Semiconductors
MPN: SCIMX258CVM4A ✓ Hoạt độngSCIMX258CVM4A Tóm tắt
Key features include hardware-accelerated LCD support up to SVGA resolution, integrated 10/100 Ethernet MAC with IEEE 1588 timestamping hardware assist, four SPIs, three I2C, and five UARTs, plus NAND Flash and DDR2 external memory controllers. Power-management features include multiple voltage domains and a Smart Direct Memory Access (SDMA) engine for low-power audio playback.
The SCIMX258CVM4A is built on a 0.13 µm process and uses the ARM926EJ-S core with 16 KB I-cache and 16 KB D-cache, supporting the ARMv5TEJ instruction set including Jazelle hardware-accelerated Java execution. Industrial temperature range (-40 C to +85 C) and NXP's product longevity program make it suitable for long-life industrial designs.
Typical applications include industrial human-machine interfaces (HMIs), building automation controllers, smart-grid energy meters, point-of-sale (POS) terminals, medical patient-monitoring equipment, and printing/scanning imaging systems. The integrated LCD controller and Ethernet MAC enable standalone networked display terminals without external graphics bridges.
When designing with this part, provide decoupling on every AVCC/VDD pin per NXP hardware design guide and verify DDR2 trace impedance - the DDR2 controller is sensitive to mismatched routing. Use the BSP from NXP for Linux support rather than legacy bare-metal code, since silicon errata are tracked in BSP release notes.
Bộ thay thế dễ dàng lắp đặt cho SCIMX258CVM4A — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
SCIMX257CVM4A
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SCIMX255CVM4A
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
SCIMX251CVM4A
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
SCIMX258CVM4A Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM926EJ-S (ARMv5TEJ) |
| Core Count | 1 |
| Cache (I-cache / D-cache) | 16 KB / 16 KB |
| MMU | Yes |
| Instruction Set | ARMv5TEJ with Jazelle |
| LCD Controller | Integrated, up to SVGA |
| Ethernet MAC | 10/100 Mbps with IEEE 1588 hardware assist |
| USB | USB 2.0 OTG controller integrated |
| UART | 5 |
| I2C | 3 |
| SPI | 4 |
| NAND Flash Controller | Yes |
| DDR Memory Controller | DDR2 / LPDDR |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Package Type | MAPBGA |
| Pin/Ball Count | 289 ball |
| Process Technology | 0.13 µm |
| Trạng thái RoHS | Compliant |
| Jazelle (Java) Support | Yes |
Cấu hình chân SCIMX258CVM4A
| Chân A1 | NC — Not connected (per datasheet) - BGA ball |
| Chân B5 | VDD — Core supply (1.2 V nominal) - BGA ball |
| Chân D2 | DDR2_A0 — DDR2 address bus - BGA ball |
| Chân F12 | LCD_D0 — LCD data bus - BGA ball |
| Chân H4 | ETH_RXP — Ethernet receive positive - BGA ball |
| Chân K9 | USB_DP — USB OTG data plus - BGA ball |
| Chân M3 | GPIO1_IO00 — General-purpose I/O - BGA ball |
| Chân P11 | UART1_TXD — UART1 transmit data - BGA ball |
| Chân T6 | I2C1_SCL — I2C1 clock - BGA ball |
| Chân U13 | SPI1_MOSI — SPI1 master out slave in - BGA ball |
Ứng dụng tiêu biểu
SCIMX258CVM4A phù hợp cho 7 Áp dụngs: Industrial Human-Machine Interface (HMI) Panel, Smart-Grid Energy Meter, Point-of-Sale (POS) Terminal, Medical Patient-Monitoring Device, Building-Automation Controller, Networked Industrial Printer/Scanner, Vehicle Telematics and Fleet-Tracking Gateway.
Industrial Human-Machine Interface (HMI) Panel
The SCIMX258CVM4A's integrated LCD controller drives SVGA-resolution touchscreens without an external graphics bridge, while its 10/100 Ethernet MAC with IEEE 1588 timestamping enables deterministic HMI-to-PLC communication. Five UARTs and three I2C buses handle multi-protocol sensor and keypad interfacing. Industrial -40 C to +85 C temperature and NXP product longevity program support long-life factory deployments where component obsolescence is a risk. NXP recommends pairing the i.MX258 with low-latency DDR2 LPDDR memory and the NXP official Linux BSP for deterministic touchscreen latency.
Được đề xuất
Smart-Grid Energy Meter
The SCIMX258CVM4A's ARM926EJ-S core with MMU runs metering algorithms (power factor, harmonics) under Linux while the integrated LCD driver displays readings directly on the panel. The 10/100 Ethernet MAC with IEEE 1588 hardware timestamping is widely used for sub-second time-synced grid telemetry where regulatory accuracy requires PTP discipline. Industrial temperature and SDMA-based audio support enable advanced metering infrastructure (AMI) deployments.
Được đề xuất
Point-of-Sale (POS) Terminal
The SCIMX258CVM4A's USB 2.0 OTG integrates fingerprint readers, NFC readers, and magnetic-stripe peripherals directly to the MPU. The integrated LCD controller and Ethernet MAC enable IP-connected terminals with on-screen customer displays. The 289-ball MAPBGA footprint allows compact all-in-one POS form factors with reliability across the commercial -40 C to +85 C industrial range. NXP Linux BSP provides EMV/PCI PTS middleware support.
Được đề xuất
Medical Patient-Monitoring Device
The SCIMX258CVM4A runs a real-time patch on the ARM926EJ-S while a Linux UI handles touchscreen interaction, supporting vital-sign displays of ECG, SpO2, and respiration waveforms. The MMU enables memory protection between the real-time patch and the rich OS, addressing IEC 62304 medical-device software-process requirements. -40 C to +85 C and NXP product-longevity support a 10-year plus deployment lifecycle in clinical environments.
Được đề xuất
Building-Automation Controller
The SCIMX258CVM4A drives a wall-mounted touchscreen, manages BACnet/Modbus traffic over Ethernet, and runs the building-management Linux stack on the same MPU. The integrated LCD controller and SDMA audio engine deliver both visual feedback and intercom capability without external DSP. The 289-ball MAPBGA footprint supports thin wall-mount enclosure designs common in commercial HVAC and access-control panels.
Được đề xuất
Networked Industrial Printer/Scanner
The SCIMX258CVM4A's four SPIs handle image-sensor and stepper-motor drivers, while the integrated LCD drives the operator panel, and the 10/100 Ethernet MAC delivers scan-to-network/email capability. The DDR2 controller supports the image-line buffer at high printer resolutions without external bandwidth bridges. NXP's industrial product-longevity program keeps the BOM available for the printer's 7-10 year support window.
Được đề xuất
Vehicle Telematics and Fleet-Tracking Gateway
The SCIMX258CVM4A's ARM926EJ-S runs the telematics application while CAN bridges connect to vehicle networks. Industrial -40 C to +85 C temperature and the SDMA engine for low-latency audio support audio-prompts for driver alerts. The 289-ball MAPBGA package fits compact in-cabin enclosures and the integrated Ethernet MAC provides fleet backhaul without an external processor.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho SCIMX258CVM4A — 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 | SCIMX257CVM4A | SCIMX255CVM4A | SCIMX251CVM4A |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 289-ball MAPBGA | 289-ball MAPBGA - same | 289-ball MAPBGA - same | 289-ball MAPBGA - same |
| Core Architecture | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S |
| LCD Controller | Integrated (SVGA) | Integrated (SVGA) | Integrated | Integrated |
| Ethernet MAC | 10/100 with IEEE 1588 | 10/100 with IEEE 1588 | 10/100 | 10/100 |
| USB | USB 2.0 OTG | USB 2.0 OTG | USB 2.0 OTG | USB 2.0 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Higher integration than discrete solutions (vsSCIMX251CVM4A (lower-speed variant))
- Drop-in compatibility within i.MX25 family (vsSCIMX255CVM4A)
- Industrial product-longevity supply (vsSCIMX257CVM4A)
Ghi chú thiết kế
The i.MX25 SCIMX258CVM4A implements multiple voltage domains: 1.2 V for ARM core, 1.8 V for DDR2, and 3.3 V for I/O. Estimate: total power at 400 MHz is approximately 0.9 W with all peripherals active; at idle the SDMA-only playback mode drops this to ~150 mW. Use a dedicated LDO for the 1.2 V core rail capable of 600 mA dynamic load - the core voltage must be sequenced first per NXP hardware design guide to avoid in-rush latch-up. Place 22 µF + 0.1 µF decoupling on every VDD/AVCC BGA ball within 2 mm trace length.
The 289-ball MAPBGA package requires microvia PCB technology (8-layer Class 3 stack-up with 0.4 mm pitch escape). Estimate: total component area roughly 14 mm × 14 mm. Route the DDR2 interface first with 50 Ω single-ended / 100 Ω differential impedance per JEDEC specifications; route USB DP/DN as a 90 Ω differential pair on the top layer with no splits. Add ground vias adjacent to every high-speed signal via to minimize inductance.
At sustained 400 MHz operation, the SCIMX258CVM4A dissipates approximately 0.9 W, requiring a thermal pad area of at least 6 mm × 6 mm of 1 oz copper to maintain junction temperature below 100 C at +85 C ambient. For sealed industrial enclosures, estimate that derating to 350 MHz reduces dissipation to ~0.7 W and may eliminate the need for thermal vias. Always verify thermally in the actual housing with worst-case corner software workloads.
Do not confuse this part SCIMX258CVM4A with the i.MX6 series - the i.MX25 uses an ARM9 core with DDR2 controller, not the ARM Cortex-A9 with LPDDR2 used in i.MX6. Mis-mating the BSP causes boot failures. Verify DDR2 timing parameters in the hardware design guide; mismatched CAS latency is a common cause of boot loops. Use only NXP-released BSPs - third-party patches rarely cover silicon errata.
Thông tin tuân thủ
RoHS compliant per NXP product page; lead-free MAPBGA package; AEC-Q100 qualification not applicable for industrial-grade MPUs. Consumer i.MX25 variants exist for -20 C to +70 C environments but are not AEC-Q100 qualified for automotive use.
