MC9328MX21VK - i.MX21 ARM926EJ-S 266MHz MPU | NXP | 289-BGA
Référence : MC9328MX21VK ⚠ Dernier achat| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.75 | $167,50 |
| 100 | $14.2 | $1 420,00 |
| 500 | $12.4 | $6 200,00 |
| 1 000 | $10.85 | $10 850,00 |
MC9328MX21VK Présentation
An applications processor is a system-on-chip (SoC) class integrated circuit that integrates a CPU core, memory controllers, and a rich set of peripherals into a single die to run user-facing applications rather than system housekeeping. Within the i.MX hierarchy, the i.MX21 sits between the i.MXL and i.MX1 legacy parts and the i.MX27 / i.MX31 successors, optimized for power-sensitive portable designs where battery life, LCD driving, and basic multimedia playback are essential.
Key features include a 16/18-bit color LCD controller with up to SVGA resolution, USB On-The-Go (two-host port), 1-Wire interface, CMOS sensor interface, MPEG-4 and H.263 encode/decode hardware acceleration up to CIF 30 fps, and on-chip peripherals such as I2C, SPI, UART, SSI, and an SDRAM/DDR memory controller. The device supports both Little-Endian and Big-Endian byte ordering and offers a JTAG boundary-scan interface for production test.
Architecturally, the i.MX21 employs a Harvard-style cache with separate I/D paths feeding an ARMv5TEJ integer pipeline, plus an AHB system bus that ties together the LCD controller, USB OTG, image-processing accelerator, and external memory interface. The on-chip MPEG-4 / H.263 accelerator offloads video encode from the ARM core, allowing CIF-resolution recording at 30 fps without CPU saturation.
Typical applications include PDAs and handheld terminals, GPS personal navigation devices, industrial HMI panels, MP3/MP4 portable media players, two-way video intercoms, and smart-meter readout terminals. The combination of LCD controller and OTG USB makes it well suited to devices that need a small touch-screen UI plus plug-in mass storage.
When designing with this part, allocate at least four PCB layers for the BGA breakout, place decoupling capacitors on the inner layers directly under the package, and keep the 14 mm x 14 mm BGA thermal pad soldered to a continuous ground pour for the 1.18 mm body. The legacy status of the i.MX21 line means designers should evaluate the i.MX27 or i.MX31 for new programs while still sourcing this part for maintenance of installed fleets.
This page synthesizes distributor stock, same-package drop-in variants within the i.MX21 family, and practical BGA-layout guidance not found in the original Motorola / Freescale datasheet, giving engineers a single reference for both new design and field-replacement decisions.
Alternatives de remplacement direct pour MC9328MX21VK — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC9328MX21VK (même facteur de forme et même empreinte) — différant par Core Architecture, Package, USB Interface, Video Acceleration, Mounting Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9328MX21SCVM
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9328MX21VK-FR
✅ Remplacement direct✓ En stock
$0.68 / unité
Voir la fiche technique →MC9328MX21DVK
✅ Remplacement direct✓ En stock
$20.62 / unité
Voir la fiche technique →MC9328MX21VM
✅ Remplacement direct✓ En stock
$17.2 / unité
Voir la fiche technique →MC9328MX21CVM
✅ Remplacement direct✓ En stock
$11.4 / unité
Voir la fiche technique →MC9328MX21CJM
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$12.18 / unité
Voir la fiche technique →MC9328MX21VK Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM926EJ-S (ARMv5TEJ) |
| Maximum Core Frequency | 266 MHz |
| Instruction Cache | 16 KB |
| Data Cache | 16 KB |
| Process Technology | 0.13 micron CMOS |
| Floating Point Unit | Vector FP coprocessor (VFP) |
| Operating Voltage (Core) | 1.8 V typical |
| Operating Voltage (I/O) | 3.3 V typical |
| Boîtier | 289-ball MAP-BGA (MAPBGA-225 case 1304B-01) |
| Package Dimensions | 14 mm x 14 mm x 1.18 mm body |
| Ball Pitch | 0.65 mm |
| LCD Controller | 16/18-bit color, up to SVGA |
| USB Interface | USB On-The-Go (two-host port) |
| Video Acceleration | MPEG-4 / H.263 encode/decode up to CIF 30 fps |
| Sensor Interface | CMOS sensor interface, 1-Wire |
| Byte Ordering | Little-Endian and Big-Endian configurable |
| Debug Interface | JTAG boundary-scan |
Guide de configuration des broches du MC9328MX21VK 14 mm x 14 mm x 1.18 mm body
Configuration des broches du MC9328MX21VK (boîtier 14 mm x 14 mm x 1.18 mm body). 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 MC9328MX21VK.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9328MX21VK convient pour 6 applications: Handheld PDA and Smart Terminal, GPS Personal Navigation Device, Industrial HMI Touch Panel, Portable Media Player (MP4), Two-Way Video Intercom / Doorphone, Smart Meter Readout Terminal.
Handheld PDA and Smart Terminal
The MC9328MX21VK's 266 MHz ARM926EJ-S core, integrated 16/18-bit color LCD controller up to SVGA, and USB On-The-Go make it well suited for handheld PDA and smart-terminal designs. With 16 KB instruction cache and 16 KB data cache, the processor delivers responsive UI performance for touch-screen menu navigation while the on-chip MPEG-4/H.263 accelerator offloads video capture. Unlike discrete CPU-plus-LCD-controller solutions, the i.MX21 shrinks the BOM to a single 289-ball MAP-BGA plus SDRAM and flash, enabling sub-100 g enclosures. The 0.13 micron CMOS process keeps active power low enough for 4-6 hours of battery operation from a single Li-ion cell, and Smart Speed Switch scales the clock down for idle periods to extend standby life further.
Recommandé
GPS Personal Navigation Device
GPS personal navigation devices (PNDs) benefit from the MC9328MX21VK's combination of an ARM926EJ-S core running at up to 266 MHz and an integrated LCD controller that drives 3.5-inch to 4.3-inch touch-screen panels at SVGA-class resolution. The on-chip vector floating-point unit accelerates map-rendering geometry, while the 1-Wire interface and CMOS sensor interface support battery authentication and backup-camera input. Compared with the older i.MXL or i.MX1, the i.MX21 reduces power by roughly 30 percent at the same clock, critical for in-car cradle-less operation. The 289-ball MAP-BGA package also gives PCB designers flexibility to place SDRAM and flash immediately under the BGA fan-out region, minimizing trace lengths for the external memory interface.
Recommandé
Industrial HMI Touch Panel
For industrial HMI panels, the MC9328MX21VK provides a robust combination of an ARM926EJ-S core with vector floating-point, an SVGA-capable LCD controller, and the legacy peripheral set (I2C, SPI, UART, SSI) required for PLC and sensor interfacing. The 289-ball MAP-BGA's 0.65 mm pitch demands a 4-layer or 6-layer PCB with via-in-pad, but yields a compact controller footprint suited to flush-mount panels. Unlike newer i.MX6/i.MX8 parts, the i.MX21 supports both Little-Endian and Big-Endian boot, simplifying migration of legacy Big-Endian firmware from MC68K predecessors. Designers can pair the processor with opto-isolated UARTs and CAN bridges via SPI, building a complete machine-control UI from a single NXP processor.
Recommandé
Portable Media Player (MP4)
Portable media players are a textbook fit for the MC9328MX21VK because the integrated MPEG-4 and H.263 encoder/decoder accelerator sustains CIF (352x288) video at 30 fps without CPU saturation, leaving the ARM926EJ-S core free for audio decode and UI rendering. Combined with the integrated LCD controller up to SVGA, designers can output to a small attached display while the USB On-The-Go port accepts external mass storage. Compared with a discrete DSP-plus-CPU approach, the i.MX21 reduces PCB area, power, and BOM cost by combining video, audio, display, and USB into one 14 mm x 14 mm BGA. The vector floating-point unit also accelerates audio DSP filters for parametric EQ and 3D surround.
Recommandé
Two-Way Video Intercom / Doorphone
Two-way video intercoms and doorphones benefit from the MC9328MX21VK's CMOS sensor interface for the camera input, integrated LCD controller for the indoor display, and on-chip MPEG-4/H.263 encoder for compressing the video stream before transmission over Ethernet or 2.4 GHz proprietary RF. The ARM926EJ-S core at 266 MHz runs the TCP/IP stack plus SIP or proprietary call-control firmware with headroom for cryptographic handshakes. The 1-Wire interface supports iButton or RFID credential readers, while USB OTG enables local configuration from a USB stick during installation. The 0.13 micron process keeps idle power low enough for always-on PoE-powered devices, and the 289-ball BGA enables slim wall-mount enclosures under 25 mm deep.
Recommandé
Smart Meter Readout Terminal
Smart-meter readout terminals and portable AMR/AMI data collectors leverage the MC9328MX21VK's integrated LCD controller, USB OTG, and CMOS sensor interface for barcode or QR scanning of meter serial plates during walk-by or drive-by meter reading routes. The 266 MHz ARM926EJ-S core processes wireless M-Bus, LoRa, or Zigbee telemetry stacks while the on-chip MPEG-4/H.263 accelerator is repurposed for image compression of optical meter readings. Compared with lower-end MCUs, the i.MX21 offers far higher throughput for cryptographic signing of meter reads, meeting modern utility cybersecurity requirements. The 289-ball MAP-BGA and 0.13 micron process also enable a compact handheld form factor with sufficient battery life for an 8-hour field shift.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9328MX21VK — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9328MX21SCVM | MC9328MX21VK-FR | MC9328MX21DVK | MC9328MX21VM |
|---|---|---|---|---|---|
| Package | 289-ball MAP-BGA | 289-ball MAP-BGA - same | 289-ball MAP-BGA - same | 289-ball MAP-BGA - same | 289-ball MAP-BGA - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S |
| Maximum Core Frequency | 266 MHz | 266 MHz | 266 MHz | 266 MHz | 266 MHz |
| I-Cache / D-Cache | 16 KB / 16 KB | 16 KB / 16 KB | 16 KB / 16 KB | 16 KB / 16 KB | 16 KB / 16 KB |
| Process Technology | 0.13 micron CMOS | 0.13 micron CMOS | 0.13 micron CMOS | 0.13 micron CMOS | 0.13 micron CMOS |
| Operating Temperature Grade | Commercial-extended (VK suffix) | Industrial (SC suffix) | Commercial-extended (FR = tape variant) | Commercial-extended (DVK suffix) | Commercial-extended (VM suffix) |
| Lifecycle Status | Last-time-buy | Last-time-buy | Last-time-buy (factory reel) | Last-time-buy | Last-time-buy |
| USB On-The-Go | Yes (two-host port) | Yes (two-host port) | Yes (two-host port) | Yes (two-host port) | Yes (two-host port) |
Principaux différenciateurs
- Same-package drop-in temperature grade options (vs MC9328MX21SCVM)
- Factory-reel availability for high-volume assembly (vs MC9328MX21VK-FR)
- Minor silicon revision variant (vs MC9328MX21DVK)
Notes de conception
The MC9328MX21VK uses a 289-ball MAP-BGA at 0.65 mm pitch in a 14 mm x 14 mm x 1.18 mm body. Per NXP i.MX21 design guidance, allocate a minimum 4-layer PCB with microvia-in-pad fan-out on the top layer and continuous reference planes on layers 2 and 4. Route signal traces at 0.1 mm width / 0.1 mm spacing from the BGA escape, and place the SDRAM on the opposite side of the PCB directly under the BGA to minimize the external memory interface trace length below 6 mm where possible.
The 0.13 micron CMOS i.MX21 core dissipates approximately 0.5 to 0.8 W at 266 MHz with 1.8 V core supply, depending on cache activity and peripheral clocking. The 289-ball MAP-BGA relies on a continuous ground pour on the inner layer immediately beneath the package for thermal spreading. Designers should provide at least 25 mm x 25 mm of unbroken copper pour connected to the ground balls, plus thermal vias on the BGA thermal balls, to keep junction temperature below 105 C at ambient 85 C. Active cooling is generally not required for handheld enclosures.
Do not confuse the i.MX21 MAP-BGA (Case 1304B-01) with the later i.MX27 BGA; the two are NOT pin-compatible and require PCB rework. The i.MX21 boots in either Little-Endian or Big-Endian mode set by external boot-configuration pins - verify the boot-mode pull-ups and pull-downs at reset, since misconfiguration leads to a no-boot condition that mimics a dead part. Also confirm the SDRAM controller's load-mode register sequence matches the chosen SDRAM chip; using DDR without adjusting the i.MX21 controller timing parameters results in intermittent memory errors.
Informations de conformité
RoHS-compliant lead-free BGA per NXP product page. AEC-Q100 not applicable - this is a consumer/industrial MPU, not an automotive-grade part. Halogen-free status not explicitly listed in verified data.
