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NXP Semiconductors LPC4350FBD208,551
- Part No.:
- LPC4350FBD208,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 208-LQFP
- Datasheet:
-
LPC4350FBD208,551.pdf
- Description:
- IC MCU 32BIT ROMLESS 208LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,165
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Product details
Overview
LPC4350FBD208,551 from NXP Semiconductors is a dual-core ARM Cortex-M4/M0 microcontroller for high-performance embedded control, featuring 204 MHz CPU operation, 264 kB on-chip SRAM, integrated Ethernet MAC with IEEE 1588 support, dual high-speed USB 2.0 interfaces (one with on-chip HS PHY), and LCD controller - deployed in industrial motor drives and networked audio gateways.
For engineers reviewing the LPC4350FBD208,551 datasheet, LPC4350FBD208,551 pinout, LPC4350FBD208,551 application, or LPC4350FBD208,551 equivalent, this page delivers verified core architecture details, package-specific I/O mapping, real-time peripheral timing constraints, and validated alternative selection guidance for migration or second-sourcing.
Technical Context
The LPC4350FBD208,551 implements a tightly coupled dual-processor subsystem: the Cortex-M4 core handles main application execution and DSP-intensive tasks using its hardware FPU and SIMD instructions, while the Cortex-M0 co-processor offloads real-time I/O management and low-latency interrupt handling at up to 204 MHz. Both cores share access to the AHB multilayer matrix and independent SRAM banks.
Its clock system integrates three PLLs - one for CPU/Bus operation, one dedicated to USB0 high-speed PHY, and a third configurable as audio PLL - enabling synchronous multi-domain timing without external high-frequency crystals. The GIMA crossbar allows dynamic routing of GPIO, timer, ADC, and SCT events to any compatible peripheral input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | Dual-core: ARM Cortex-M4 @ up to 204 MHz + Cortex-M0 @ up to 204 MHz, Harvard bus with separate instruction/data paths and speculative branch prefetch. |
| On-chip Memory | 264 kB SRAM (distributed across four banks with independent AHB access and individual power-down control) + 64 kB ROM boot loader + 320-bit OTP. |
| Connectivity | 10/100T Ethernet MAC with RMII/MII and IEEE 1588-2008 v2 timestamping; two HS USB 2.0 interfaces (USB0 with integrated HS PHY, USB1 with ULPI support). |
| Analog Peripherals | Two 10-bit ADCs (400 kS/s each, 8 channels total, shared input pins); one 10-bit DAC (400 kS/s, DMA-capable). |
| Digital Peripherals | State Configurable Timer/PWM (SCTimer/PWM) with event-driven state machine logic; Serial GPIO (SGPIO); Global Input Multiplexer Array (GIMA); External Memory Controller (EMC) for SDRAM/SRAM/NOR. |
| Package & Pin Count | LQFP208 package with 208 leads; body size 28 × 28 × 1.4 mm; supports 164 GPIO pins (function-multiplexed across 16 ports P0–P9, PA–PF). |
| Power Management | Single 3.3 V supply (2.2–3.6 V range); four low-power modes (Sleep, Deep-sleep, Power-down, Deep power-down); RTC domain with battery-backed 256 B registers and alarm timer. |
Pinout & Package
LQFP208 package: 28 mm × 28 mm body, 1.4 mm height, 0.5 mm lead pitch, thermally enhanced exposed pad. Pin 1 marked by dot; pin numbering follows standard LQFP clockwise sequence starting from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 | GPIO / SSP1_MISO / ENET_RXD1 / I2S0_TX_WS | Multi-function digital I/O; primary role as GPIO0[0]; supports Ethernet receive data line 1 in RMII/MII mode and I2S word select output for audio master timing. |
| P1_15 | GPIO / ENET_RXD0 / U2_TXD / T0_MAT2 | Core Ethernet interface pin; carries RXD0 in RMII/MII; also serves as USART2 transmit and timer0 match output - critical for synchronized packet reception and protocol timing. |
| P1_18 | GPIO / ENET_TXD0 / CAN1_TD / T0_MAT3 | Ethernet transmit data line 0; enables full-duplex 10/100 Mbps operation; dual-use as CAN1 transmit driver output for mixed-protocol industrial nodes. |
| P1_19 | ENET_TX_CLK / SSP1_SCK / CLKOUT / I2S0_RX_MCLK | Reference clock source for Ethernet PHY (RMII) or MII; also provides serial clock for SSP1 and master clock for I2S receive - key for deterministic audio/video sync. |
| P2_0 | U0_TXD / EMC_A13 / USB0_PPWR / GPIO5[0] | USART0 transmit output; external memory address line 13 for SDRAM expansion; active-HIGH VBUS drive control for USB0 port power management. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core asymmetric processing | Cortex-M4 handles complex algorithms and real-time OS; Cortex-M0 manages time-critical peripherals (USB, Ethernet, timers) with deterministic latency and zero software overhead. |
| SCTimer/PWM subsystem | Hardware-configurable state machine replaces software-based PWM generation; supports complex waveform synthesis (e.g., trapezoidal commutation) without CPU intervention. |
| GIMA crossbar routing | Enables runtime reconfiguration of signal paths between 164 GPIO pins and 12+ event-driven peripherals - eliminates fixed pin dependencies and simplifies PCB layout reuse. |
| IEEE 1588-2008 v2 support | Hardware timestamping engine in Ethernet MAC achieves sub-microsecond precision for time-sensitive networking (TSN) in industrial automation and synchronized audio systems. |
| Secure boot & OTP storage | ROM-based boot code validates signed firmware images; 64-bit + 256-bit OTP space stores cryptographic keys and device-unique identifiers for secure firmware updates and anti-cloning. |
Applications
| Industrial Motor Control | Networked Audio Gateway |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC motors in HVAC compressors and PLC-driven actuators. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm on Cortex-M4; Cortex-M0 handles PWM update, encoder quadrature decoding (QEI), and current-sense ADC sampling with cycle-accurate timing. Use Value: 204 MHz M4+FPU enables real-time Clarke/Park transforms; SCTimer/PWM generates precise 3-phase gate drive signals; EMC supports external SDRAM for motion profile buffering. |
Use Scenario: Multi-format audio bridge converting Dante, AES67, and USB Audio Class 2.0 streams in professional AV equipment. IC Role / Device Role / Timing Role: Dual-core audio scheduler: M4 processes sample-rate conversion and effects; M0 manages I2S/SPDIF/USB packet timing and buffer DMA handoffs. Use Value: IEEE 1588 timestamping aligns audio clocks across network; dual USB interfaces support simultaneous host/device roles; I2S interfaces with DMA enable zero-drop streaming. |
| Smart Energy Metering | Industrial Ethernet I/O Module |
Use Scenario: DIN-rail mounted e-meter aggregating voltage/current harmonics, tariff calculation, and DLMS/COSEM over PRIME or G3-PLC backhaul. IC Role / Device Role / Timing Role: Cortex-M4 runs metrology firmware and encryption; Cortex-M0 monitors tamper inputs, manages RTC calendar, and triggers secure boot on anomaly detection. Use Value: Dual 10-bit ADCs sample 8 channels simultaneously at 400 kS/s for harmonic analysis; OTP stores meter ID and calibration constants; brownout detection prevents corrupted flash writes. |
Use Scenario: Remote I/O node collecting analog/digital sensor data and driving solenoids/relays via EtherNet/IP or PROFINET. IC Role / Device Role / Timing Role: Real-time Ethernet controller: M4 executes CIP stack and cyclic I/O exchange; M0 handles GPIO group interrupts and PWM outputs for valve control. Use Value: Integrated Ethernet MAC with hardware timestamping meets PROFINET IRT jitter requirements (<1 µs); EMC supports external flash for firmware redundancy; 164 GPIO enable scalable channel count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC4357FBD208,551 | Same dual-core architecture and pinout; adds 1 MB Quad-SPI Flash Interface (SPIFI) and enhanced security features (AES, SHA, RNG). | Required where local firmware storage, secure boot, or encrypted communication is mandatory - e.g., medical devices or payment terminals. | Select LPC4357FBD208,551 when SPIFI-based code execution or cryptographic acceleration is needed; otherwise LPC4350FBD208,551 offers identical real-time control capability at lower cost. |
| LPC4367FBD208,551 | Includes additional 128 kB SRAM bank and upgraded USB1 PHY supporting full-speed + high-speed operation without external ULPI transceiver. | Suitable for USB-centric designs requiring dual-host capability (e.g., USB-C docking stations) or higher RAM headroom for RTOS stacks and buffers. | Choose LPC4367FBD208,551 only if extra SRAM or integrated USB1 HS PHY is required; LPC4350FBD208,551 remains optimal for Ethernet/ADC/motor control focus. |
Compared with LPC4357FBD208,551 and LPC4367FBD208,551, the LPC4350FBD208,551 delivers identical dual-core performance, Ethernet, and analog peripheral capability in LQFP208 - making it the most cost-effective choice for applications not requiring on-chip flash or extended USB PHY integration.
Availability
LPC4350FBD208,551 is available at Aetrix Electronics and suitable for industrial motor control, networked audio gateways, smart energy metering, and Ethernet I/O modules requiring stable component supply and long-term production continuity.
Supply support for LPC4350FBD208,551 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based microcontrollers and edge processing.
The LPC4300 series was designed specifically for deterministic dual-core embedded control - combining Cortex-M4 computational power with Cortex-M0 real-time responsiveness to replace FPGA+MCU combinations in industrial automation and audio processing.
FAQ
What is the maximum operating frequency of the LPC4350FBD208,551?
The LPC4350FBD208,551 operates at a maximum CPU frequency of 204 MHz for both the ARM Cortex-M4 and Cortex-M0 cores. This frequency is achieved using the internal PLLs driven by the 12 MHz IRC oscillator or an external crystal (1–25 MHz). The LPC4350FBD208,551 maintains full peripheral functionality and timing compliance at this speed, including Ethernet MAC, USB controllers, and ADC sampling rates.
Does the LPC4350FBD208,551 include on-chip flash memory?
No, the LPC4350FBD208,551 is a flashless microcontroller. It relies on external memory via its External Memory Controller (EMC) for program storage - supporting SDRAM, NOR flash, and SRAM. Boot code resides in 64 kB on-chip ROM, and 320-bit One-Time Programmable (OTP) memory stores configuration and security keys. The LPC4350FBD208,551 requires external Quad-SPI Flash or parallel NOR for application firmware.
Which Ethernet interface modes does the LPC4350FBD208,551 support?
The LPC4350FBD208,551 integrates a 10/100T Ethernet MAC with support for both RMII and MII physical layer interfaces. It includes hardware-accelerated IEEE 1588-2008 v2 timestamping for precise time synchronization, DMA-assisted packet handling to minimize CPU load, and full-duplex operation. The LPC4350FBD208,551 does not include an integrated PHY - external PHY ICs (e.g., LAN8720A) must be used with either RMII or MII signaling.
How many USB interfaces does the LPC4350FBD208,551 provide, and what are their capabilities?
The LPC4350FBD208,551 provides two independent USB 2.0 interfaces: USB0 supports Host/Device/OTG modes with an integrated high-speed PHY; USB1 supports Host/Device modes with a full-speed PHY and ULPI interface for connection to external high-speed PHYs. Both interfaces feature DMA support and are fully compliant with USB 2.0 specifications. The LPC4350FBD208,551 does not support USB 3.x or Type-C native functionality.
What package type and pin count does the LPC4350FBD208,551 use?
The LPC4350FBD208,551 uses a plastic low-profile quad flat package (LQFP) with 208 leads, measuring 28 mm × 28 mm × 1.4 mm with 0.5 mm lead pitch. This package is distinct from other variants in the LPC4350 family (e.g., LBGA256, TFBGA180) and provides full access to all 164 GPIO pins, dual USB, Ethernet, LCD, and analog peripherals. The 'FBD208' suffix explicitly denotes this LQFP208 variant.
LPC4350FBD208,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 208-LQFP
- Series:
- LPC43xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4/M0
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 204MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, Microwire, SD, SPI, SSI, SSP, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 142
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 264K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 3.6V
- Data Converters:
- A/D 8x10b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC4350FBD208,551 FAQ
1.How can I place an order for LPC4350FBD208,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC4350FBD208,551 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LPC4350FBD208,551 reliable?
The price and inventory of LPC4350FBD208,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC4350FBD208,551 is usually 5 days.
3.What payment methods are accepted for LPC4350FBD208,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC4350FBD208,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC4350FBD208,551?
LPC4350FBD208,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC4350FBD208,551 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LPC4350FBD208,551?
For technical support, including LPC4350FBD208,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC4350FBD208,551 requirements.
6.How does Aetrix verify that LPC4350FBD208,551 is sourced from the original manufacturer or authorized distributors?
All LPC4350FBD208,551 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LPC4350FBD208,551 meets industry standards.
7.What is the process for return or replacement of LPC4350FBD208,551?
All LPC4350FBD208,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC4350FBD208,551, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LPC4350FBD208,551 part is unused and in its original packaging.
Return procedure for LPC4350FBD208,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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