MCIMX27MJP4A557 - i.MX27 Multimedia ARM9 MPU 400MHz 473-PBGA
Référence : MCIMX27MJP4A557 ✗ Fin de vieMCIMX27MJP4A557 Présentation
The ARM926EJ-S is a 32-bit RISC processor core that supports the ARMv5TEJ instruction set, including Java acceleration via the Jazelle extension. The i.MX27 belongs to the broader ARM926EJ-S microprocessor family, which sits within the application processor hierarchy: ARM9 core -> microprocessor IC -> embedded processor -> SoC -> semiconductor. The MMic part provides a single-core architecture that balances deterministic real-time response with the multimedia throughput required by mid-resolution video playback at 30 fps.
Key features include an operating frequency of up to 400 MHz, an integrated LCD controller supporting up to VGA resolution, a CMOS image sensor interface, hardware MPEG-4 and H.263 video encoding/decoding, USB 2.0 high-speed On-The-Go, 10/100 Ethernet MAC, and three MMC/SD/SDIO card ports. The device integrates 16 KB instruction and 16 KB data caches, plus 128 KB of internal SRAM that can be mapped for multimedia data paths. Power management is handled through an on-chip PMU and multiple low-power modes including Doze, Standby, and Deep Sleep.
Typical applications include IPTV and hybrid set-top boxes, automotive telematics clusters, point-of-sale terminals, and portable medical imaging devices where integrated video and display pipelines reduce total BOM cost. The 473-PBGA package uses 1.0 mm pitch ball array suitable for multilayer PCBs with controlled-impedance routing for the external memory bus.
When designing with the i.MX27, ensure the power-on reset sequencing matches the requirements of the companion DDR or mobile DDR memory; the device supports both DDR and mobile SDRAM via its external memory controller. Thermal management must consider the maximum junction temperature of 95C, and decoupling must follow the manufacturer reference layout to maintain signal integrity on the high-speed memory bus.
Alternatives de remplacement direct pour MCIMX27MJP4A557 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
MCIMX27MJP4A
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCIMX27MJP4AR2
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCIMX27VJP4A
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCIMX27MJP4A557 Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM926EJ-S |
| Core Count | 1 |
| Largeur du bus de données | 32-bit |
| Fréquence d'horloge maximale | 400 MHz |
| Instruction Set | ARMv5TEJ (with Jazelle) |
| Boîtier | 473-PBGA (19x19 mm) |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40C to +85C |
| Internal SRAM | 128 KB |
| Instruction Cache | 16 KB |
| Data Cache | 16 KB |
| Memory Controller | DDR / mobile SDRAM |
| LCD Controller | Integrated, up to VGA |
| Video Acceleration | MPEG-4 / H.263 hardware encode/decode |
| USB | USB 2.0 High-Speed OTG |
| Ethernet MAC | 10/100 Mbps |
| MMC/SD Ports | 3 |
| Statut RoHS | Compliant |
Guide de configuration des broches du MCIMX27MJP4A557 473-pbga (19x19 mm)
Configuration des broches du MCIMX27MJP4A557 (boîtier 473-pbga (19x19 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MCIMX27MJP4A557.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MCIMX27MJP4A557 convient pour 7 applications: IPTV Set-Top Box, Automotive Infotainment Head Unit, Portable Media Player (PMP), Industrial HMI Panel, Portable Medical Imaging Device, Point-of-Sale (POS) Terminal, Video Doorbell / IP Camera.
IPTV Set-Top Box
The MCIMX27MJP4A557's integrated ARM926EJ-S core at 400 MHz combined with on-chip MPEG-4 and H.263 hardware acceleration enables the i.MX27 to decode standard-definition IPTV streams while offloading the CPU. The integrated LCD controller and triple MMC/SD ports allow direct connection to a front-panel display and conditional-access module without an external bridge IC. According to the NXP i.MX27 datasheet, USB 2.0 High-Speed OTG supports external storage and Wi-Fi dongles for hybrid STB designs. Power dissipation is moderate because the SoC handles video decode in hardware rather than software, reducing core utilization versus a CPU-only solution. The 473-PBGA provides sufficient I/O for HDMI bridges, Ethernet MAC, and tuner interfaces on a four-layer PCB.
Recommandé
Automotive Infotainment Head Unit
The MCIMX27MJP4A557 is well suited for entry-level automotive infotainment head units where the integrated LCD controller drives a QVGA/WVGA panel and the hardware video engine accelerates H.263 playback for rear-seat displays. The 400 MHz ARM926EJ-S provides sufficient throughput for CAN/LIN gateway stacks, audio DSP, and radio control firmware in parallel with media decode. The CMOS sensor interface enables direct backup-camera input without an external digitizer. Per NXP reference designs, the i.MX27 typically pairs with a companion CAN transceiver and an external audio codec. The 473-PBGA's 1.0 mm ball pitch supports multilayer PCB construction with controlled-impedance routing for the DDR memory bus.
Recommandé
Portable Media Player (PMP)
The MCIMX27MJP4A557 supports portable media player architectures that require hardware-accelerated MPEG-4 playback and direct LCD panel drive up to VGA resolution. The 128 KB of internal SRAM acts as a frame buffer and reduces external DDR bandwidth pressure during video decode, extending battery life. According to the i.MX27 datasheet, the integrated PMU with deep-sleep mode cuts quiescent draw during pause states to single-digit milliwatts. The SoC's USB 2.0 HS OTG port enables high-speed media sync with a host PC, while three MMC/SD ports support user-expandable storage. Designers should validate battery-run-time estimates against the on-chip L2 miss rate at the chosen panel resolution.
Recommandé
Industrial HMI Panel
The MCIMX27MJP4A557 powers industrial human-machine interface panels where its 400 MHz ARM926EJ-S core executes Qt/Embedded or custom GUI stacks at QVGA-WVGA resolutions. The integrated LCD controller supports TFT panels with hardware alpha-blended overlays for status icons and warning banners, eliminating external GPU cost. The Ethernet MAC enables Modbus TCP or PROFINET connectivity for factory-floor integration. As of 2026-10-17, designers specify the i.MX27 for HMI retrofitting legacy PLCs with color touchscreens. The 473-PBGA's robust thermal envelope and -40C to +85C industrial temperature range suit cabinet-mounted installations near motors and VFDs.
Recommandé
Portable Medical Imaging Device
The MCIMX27MJP4A557 enables portable medical imaging devices such as handheld ultrasound probes or point-of-care endoscopy carts by combining the ARM926EJ-S control plane with hardware video encode for streaming to a tethered display. The CMOS sensor interface accepts direct MIPI-style or parallel sensor data, and the integrated LCD controller can preview images locally for clinician feedback. According to NXP's medical device reference designs, the i.MX27's deterministic interrupt latency supports real-time imaging pipelines at 30 fps. The USB 2.0 HS OTG port allows fast image transfer to a docking station. Power budgeting favors the SoC's hardware acceleration to keep battery size manageable during continuous scanning.
Recommandé
Point-of-Sale (POS) Terminal
The MCIMX27MJP4A557 integrates the LCD controller, USB host, Ethernet MAC, and MMC/SD ports required for a compact point-of-sale terminal in a single BGA. The 400 MHz ARM926EJ-S core runs the payment-application stack, EMV smart-card drivers, and printer interface firmware concurrently. The 473-PBGA's exposed die pad simplifies PCB layout for ground-referenced thermal dissipation inside a sealed retail enclosure. Per the i.MX27 datasheet, the on-chip PMU supports fast wake-up from standby for contactless tap transactions. Peripheral expansion is straightforward via the three SDIO ports and USB 2.0 HS OTG for mag-stripe readers and thermal printers.
Recommandé
Video Doorbell / IP Camera
The MCIMX27MJP4A557 fits entry-level IP camera and video doorbell designs where the hardware H.263 encoder reduces streaming bandwidth and the CMOS sensor interface accepts common 1/3-inch image sensors directly. The Ethernet MAC supports RTSP streaming at VGA resolution, while the integrated LCD controller enables on-device preview during installation. The i.MX27 datasheet confirms USB 2.0 HS OTG for Wi-Fi dongle attachment in retrofit installs. As of 2026-10-17, designers choose this SoC for PoE-powered doorbells because the on-chip PMU handles low-standby current between motion events. The 473-PBGA supports controlled-impedance routing for the parallel sensor bus, critical at the 54 MHz pixel clock rate.
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Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCIMX27MJP4A557 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MCIMX27MJP4A | MCIMX27MJP4AR2 | MCIMX27VJP4A |
|---|---|---|---|---|
| Package | 473-PBGA (19x19 mm) | 473-PBGA (19x19 mm) - same | 473-PBGA (19x19 mm) - same | 473-PBGA (19x19 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S |
| Maximum Clock Frequency | 400 MHz | 400 MHz | 400 MHz | 400 MHz |
| USB Interface | USB 2.0 HS OTG | USB 2.0 HS OTG | USB 2.0 HS OTG | USB 2.0 HS OTG |
| Ethernet MAC | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| Hardware Video Acceleration | MPEG-4 / H.263 | MPEG-4 / H.263 | MPEG-4 / H.263 | MPEG-4 / H.263 |
Principaux différenciateurs
- Single SoC integration of ARM9 + multimedia + LCD + Ethernet (vs MCIMX27MJP4A)
- Industrial temperature grade -40C to +85C (vs MCIMX27VJP4A)
- Hardware MPEG-4/H.263 encode/decode on-die (vs Generic ARM926EJ-S microprocessor)
Notes de conception
The MCIMX27MJP4A557 requires split-rail power: a core rail (nominal 1.0 V at 400 MHz, per i.MX27 datasheet) and a separate I/O rail (typically 1.8 V or 3.3 V depending on peripheral bank voltage). Power-on-reset sequencing between core and I/O rails must follow the manufacturer's sequence to avoid latch-up; an external supervisor is recommended. Use a low-dropout regulator with power-good output to drive the reset pin cleanly during cold-start events. Decouple each supply pin with 100 nF X7R ceramics plus a bulk 10 uF per rail, placed within 5 mm of the BGA balls.
At 400 MHz full load, the MCIMX27MJP4A557 dissipates approximately 1.0-1.5 W depending on peripheral activity and video engine utilization. With a theta_JA of approximately 25-30 C/W on a 4-layer JEDEC test board, junction-to-ambient rise can reach 40-45 C above ambient. As of 2026-10-17 the operating temperature is rated -40C to +85C industrial; in sealed enclosures, attach thermal vias under the BGA center pad to a copper pour on the bottom layer. Validate thermal performance with an IR camera during worst-case video encode stress tests.
The 473-PBGA at 1.0 mm ball pitch requires laser-drilled microvias or via-in-pad construction to escape the inner rows. Per NXP reference layout, route the DDR memory bus with matched-length traces within 50 mil tolerance to preserve timing margins. Use 50 ohm controlled impedance for CMOS sensor and LCD buses. Place the external 24-27 MHz crystal within 5 mm of the XTAL pins, with a continuous ground ring to limit EMI injection into the PLL. Avoid routing high-speed USB traces under the BGA's center pad to prevent crosstalk into the analog PLL block.
Do not confuse the i.MX27 boot mode strap pins with GPIO; misconfiguring the boot mode results in a non-booting system. The DDR timing parameters must be tuned to the specific SDRAM vendor's datasheet rather than copied from default NXP boot streams. As of 2026-10-17, ensure the JTAG pins are not left floating during production - either terminate them or configure as outputs with defined logic levels. The hardware video encoder requires initialization sequences in the BSP before MPEG-4 streams can be processed.
Informations de conformité
RoHS and REACH compliant per NXP product declaration. Not AEC-Q100 qualified; for automotive infotainment requiring AEC-Q100, validate with NXP or migrate to i.MX6 series. Halogen-free status not stated in the verified web data.
