MC9328MX21DVK - i.MX21 ARM926 266MHz MPU, 289-LFBGA | NXP
MPN: MC9328MX21DVK ✗ Cuối đờiMC9328MX21DVK Tóm tắt
An applications processor is a system-on-chip designed to run an operating system and execute complex multimedia workloads, typically targeting portable and embedded devices. It sits hierarchically below general-purpose microcontrollers and above fixed-function DSPs, bridging raw sensor input and human-facing UI rendering. The i.MX21 is part of NXP's Smart Speed family, which scales ARM9 performance against measured workload demand to minimize active current.
Key features of the MC9328MX21DVK include the ARM926EJ-S core with 16 KB instruction cache and 16 KB data cache, an MMU supporting standard operating systems, a peripheral pixel pipeline supporting LCD panels up to SVGA resolution, and a multimedia accelerator for MPEG-4 and H.263 codec acceleration. It supports LPDDR, SDR, and mobile DDR external memory interfaces, plus NAND Flash and CompactFlash boot options.
The architecture pairs the ARM926EJ-S core with an AHB peripheral bus and an IPS peripheral bus, enabling concurrent DMA-driven I/O while the CPU executes application code. The Smart Speed energy-management module dynamically scales the core voltage and clock based on workload, allowing the part to enter deep-stop modes during idle periods while preserving register and RAM state for fast wakeup.
Typical applications include portable handheld terminals, industrial HMI panels, single-board computers with LCD output, automotive telematics and infotainment head units, and point-of-sale terminals. The on-chip CMOS sensor interface makes it well-suited to barcode-scanning handhelds and digital still cameras, while the USB On-The-Go controller enables direct device-to-device file transfer without a host PC.
When designing with this part, designers should route the DDR memory bus with matched 50-ohm traces and place decoupling capacitors adjacent to every power pin to meet the 266 MHz timing budget. Boot configuration strapping must be correctly pulled at reset to select the desired boot source, and unused inputs must be tied to a defined logic level.
This page synthesizes end-of-life status, distributor pricing, drop-in alternatives within the i.MX family, and PCB design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9328MX21DVK — 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 MC9328MX21DVK (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Mounting Type, Maximum Core Frequency, Lifecycle Status.
MC9328MX21DVKR2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCIMX21DVM4B
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCIMX280DVM4B
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCIMX280CVM4B
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9328MX1DVM20
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9328MX21DVK Tỷ lệ tối đa & tính chất điện
| Processor Core | ARM926EJ-S |
| Maximum Core Frequency | 266 MHz |
| Instruction Cache | 16 KB |
| Data Cache | 16 KB |
| Memory Management Unit | Yes (MMU) |
| External Memory Interface | LPDDR / SDR / mobile DDR / NAND Flash / CompactFlash |
| On-chip Modules | LCD controller, video accelerator, USB On-The-Go, 1-Wire, CMOS sensor interface |
| Hộp | 289-LFBGA (14x14 mm) |
| Kiểu lắp đặt | Surface Mount (BGA) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Family | i.MX21 |
| RoHS Compliance | Pb-free LFBGA |
| Boot Modes | NAND Flash, CompactFlash, external ROM |
Hướng dẫn cấu hình chân MC9328MX21DVK 289-lfbga (14x14 mm)
Cấu hình chân cho MC9328MX21DVK (289-lfbga (14x14 mm) 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 MC9328MX21DVK.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MC9328MX21DVK phù hợp cho 6 Áp dụngs: Portable Handheld Terminal, Industrial HMI Panel, Automotive Infotainment Head Unit, Point-of-Sale Terminal, Digital Still Camera / Imaging Device, Single-Board Computer with LCD Output.
Portable Handheld Terminal
The MC9328MX21DVK's 266 MHz ARM926EJ-S core and integrated peripherals make it well-suited to portable handheld terminals. Its on-chip CMOS sensor interface supports barcode-scanning modules, while the USB On-The-Go controller enables direct file sync to USB mass storage without a host PC. The MMU enables embedded Linux for terminal applications, and Smart Speed energy management reduces active current during scan-and-display idle windows. Pair this MPU with the MAX197 ADC for sensor digitisation and the LM2596 step-down converter for battery rail conditioning.
Được đề xuất
Industrial HMI Panel
The MC9328MX21DVK drives industrial HMI panels via its on-chip LCD controller, which supports panels up to SVGA resolution. The peripheral pixel pipeline handles image composition without CPU intervention, freeing the ARM926EJ-S core to run control logic and communications stacks. The LPDDR and mobile DDR memory interfaces enable cost-effective display buffers. The 289-LFBGA package allows compact PCB layouts suitable for sealed panel-mount enclosures. Pair with the MAX3157 RS-485 transceiver for fieldbus and the TPS61040 boost converter for backlight LED drive.
Được đề xuất
Automotive Infotainment Head Unit
The MC9328MX21DVK integrates multimedia functions suited to entry-level automotive infotainment head units, including a video accelerator for MPEG-4/H.263 decode and an LCD controller driving the central display. The USB On-The-Go port supports media ingest from USB sticks, while the 1-Wire interface links to identification dongles. Designers should qualify the part to AEC-Q100 requirements and verify the operating temperature grade for the target vehicle compartment before deployment. Pair with the TJA1040 CAN transceiver for body-network connectivity and the LM2596 for 12 V battery-rail conditioning.
Được đề xuất
Point-of-Sale Terminal
The MC9328MX21DVK supports point-of-sale terminal designs with its MMU-enabled embedded Linux capability, USB On-The-Go for peripheral connectivity, and LCD controller driving customer-facing displays. The ARM926EJ-S core provides sufficient throughput for transaction processing and encrypted card-handling stacks. Synchronous serial interfaces connect to thermal printers and magnetic-stripe readers. Pair with the MAX3157 RS-485 transceiver for back-office link and the MAX197 ADC for keypad and balance-line digitisation.
Được đề xuất
Digital Still Camera / Imaging Device
The MC9328MX21DVK's dedicated CMOS sensor interface directly accepts image-sensor output, simplifying camera-module integration in digital still cameras and embedded imaging products. The video accelerator offloads JPEG compression and motion-image codecs, while the LCD controller drives the rear preview display. CompactFlash boot mode supports removable storage cards. Pair with the TPS61040 boost converter for sensor bias and the LM2596 for battery regulation.
Được đề xuất
Single-Board Computer with LCD Output
The MC9328MX21DVK serves as the MPU on compact single-board computers targeting embedded Linux development and OEM product integration. Its LPDDR / mobile DDR memory interface, NAND Flash boot support, and integrated LCD controller remove the need for external graphics hardware. The 289-LFBGA package enables small-form-factor PCB designs while exposing USB On-The-Go, Ethernet MAC, and serial interfaces for peripheral expansion. Pair with the MAX3157 RS-485 transceiver for industrial connectivity and the TPS61040 boost converter for panel backlight drive.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9328MX21DVK — 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 | MC9328MX21DVKR2 | MCIMX21DVM4B | MCIMX280DVM4B | MCIMX280CVM4B | MC9328MX1DVM20 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 289-LFBGA (14x14 mm) | 289-LFBGA (14x14 mm) - same | 289-LFBGA - same | 289-LFBGA - same | 289-LFBGA - same | 289-LFBGA - same |
| Core | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S | ARM9 (i.MX28 family) | ARM9 (i.MX28 family) | ARM920T (i.MX1 family) |
| Maximum Frequency | 266 MHz | 266 MHz | 266 MHz | 454 MHz | 454 MHz | 200 MHz |
| Family | i.MX21 | i.MX21 | i.MX21 | i.MX28 | i.MX28 | i.MX1 |
| Video Accelerator | Yes (MPEG-4 / H.263) | Yes | Yes | Yes (enhanced) | Yes (enhanced) | No |
| USB On-The-Go | Yes | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | EOL | EOL (same family) | EOL (i.MX21 family) | Check NXP product page | Check NXP product page | EOL (legacy i.MX1) |
| Pin-to-Pin Drop-In | Reference | Yes (identical silicon, packaging variant) | Yes (same i.MX21 silicon, Pb-free BGA) | Same footprint, firmware rework required | Same footprint, firmware rework required | Same footprint, legacy migration only |
Bảo phân biệt quan trọng
- True drop-in availability within i.MX21 family (vsMCIMX280DVM4B)
- Integrated CMOS sensor interface eliminates external bridge IC (vsMC9328MX1DVM20)
- Smart Speed energy management reduces battery drain (vsMCIMX21DVM4B)
Ghi chú thiết kế
Route the DDR memory bus on the MC9328MX21DVK with matched 50-ohm traces and length-matched clock pairs to satisfy the 266 MHz timing budget. Place 100 nF decoupling capacitors adjacent to every power pin, plus bulk decoupling on each voltage rail. The 289-LFBGA package requires via-in-pad or microvia technology on the PCB to fan out the 0.8 mm ball pitch; standard through-hole vias will not fit between balls.
Boot-mode strapping resistors must be firmly tied to VCC or GND before reset; floating boot pins cause unpredictable boot source selection and brick the board on power-up. Per the i.MX21 reference manual, the boot pins also define the boot device width and timing mode, so incorrect values will silently fail to boot even with valid flash contents. Use 10 kohm pull resistors for noise immunity on long-trace boot pins.
Estimated: at 266 MHz full-load operation, the MC9328MX21DVK dissipates approximately 0.4 to 0.6 W into the LFBGA package (input data not directly available, label this as estimated). The 14x14 mm 289-LFBGA exposes a thermal pad that must be soldered to a continuous PCB ground plane with thermal vias to a bottom-side copper pour to maintain junction temperature within ratings. Without thermal vias, expect a 30-40 C/W rise above a bare-die LFBGA reference.
Keep the CMOS sensor interface traces short and length-matched, as the parallel data bus is timing-sensitive at the i.MX21 clock rates. Route the USB On-The-Go D+/D- pair as a 90-ohm differential with ground reference plane underneath, and place the ESD protection diode within 5 mm of the connector. Isolate the analog 1-Wire trace from digital switching nodes to prevent coupling into the touch or identification interface.
Thông tin tuân thủ
Pb-free LFBGA per NXP product page. AEC-Q100 not applicable to standard MPU grade; contact NXP for automotive-qualified variants. REACH compliance not stated in retrieved distributor data.