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NXP Semiconductors LPC1768FBD100K
- Part No.:
- LPC1768FBD100K
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LPC1768FBD100K.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:12,591
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Product details
Overview
LPC1768FBD100K from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 100 MHz, featuring 512 kB flash, 64 kB SRAM, Ethernet MAC, USB 2.0 Host/Device/OTG, dual CAN 2.0B controllers, and 70 GPIO pins in LQFP100 package - deployed in industrial networking gateways requiring real-time protocol bridging and fieldbus interface.
For engineers reviewing the LPC1768FBD100K datasheet, LPC1768FBD100K pinout, LPC1768FBD100K application, or LPC1768FBD100K equivalent, key selection criteria include Ethernet + USB + dual CAN coexistence, 100 MHz deterministic execution, 12-bit ADC with DMA support, motor control PWM capability, and pin compatibility with legacy LPC236x Arm7 designs.
Technical Context
The LPC1768FBD100K implements a Harvard-architecture Cortex-M3 core with 3-stage pipeline, integrated MPU supporting eight memory regions, and NVIC for low-latency interrupt handling. Its multilayer AHB matrix enables concurrent CPU, Ethernet MAC, USB, and GPDMA access without arbitration delay.
Peripheral integration includes dedicated DMA channels for Ethernet, USB, SSP, I2S, UART, ADC, and DAC; split APB bus architecture minimizes CPU-DMA contention; and pin-muxing via Pin Connect Block allows dynamic assignment of up to 70 GPIOs to multiple peripheral functions including RMII, USB D+/D−, CAN H/L, and I2S clock/data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 with 3-stage pipeline, Harvard architecture, and integrated NVIC for sub-12-cycle interrupt latency. |
| Max Clock Frequency | 100 MHz - enables deterministic real-time control loops with ≤10 ns instruction cycle time. |
| Memory | 512 kB on-chip flash (zero-wait-state at 120 MHz via accelerator), 32 kB AHB SRAM0 + 16 kB AHB SRAM1 + 16 kB APB SRAM = 64 kB total. |
| Connectivity | Ethernet MAC with RMII interface, USB 2.0 full-speed Device/Host/OTG controller with on-chip PHY, two CAN 2.0B controllers. |
| Analog Peripherals | 8-channel 12-bit ADC (200 kSPS, multiple result registers), 1-channel 10-bit DAC with dedicated timer and DMA support. |
| Timers & PWM | Four general-purpose timers (eight capture, ten compare), one motor control PWM (three-phase support), six-output general-purpose PWM block. |
| I/O & Packaging | 70 GPIO pins with configurable pull-up/down, open-drain mode, bit-banding support; housed in LQFP100 (14 × 14 × 1.4 mm). |
Pinout & Package
Package: LQFP100 (SOT407-1), plastic low-profile quad flat package, 100 leads, body size 14 mm × 14 mm × 1.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/RD1/TXD3/SDA1 | CAN1 RX / UART3 TX / I2C1 data | Multi-function pin supporting CAN bus reception, serial debug output, and I2C slave communication - selected via Pin Connect Block. |
| P0[29]/USB_D+ | USB differential data positive | Dedicated full-speed USB 2.0 bidirectional line compliant with USB specification; requires 36 Ω series termination per NXP AN10882. |
| P0[30]/USB_D− | USB differential data negative | Complementary USB D− line; paired with P0[29] for noise-immune differential signaling in device/host/OTG modes. |
| P1[0]/ENET_TXD0 | Ethernet transmit data bit 0 | RMII-compliant Ethernet signal; used with P1[1], P1[4], P1[8], P1[9], P1[10], P1[14]–P1[17] for 10/100 Mbps PHY interface. |
| P2[0]/PWM1[1]/TXD1 | PWM output / UART1 TX | Configurable as motor control PWM channel or primary debug UART output - supports simultaneous use via peripheral routing. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade path | Direct replacement for LPC236x Arm7 series - preserves PCB layout, reduces migration risk in legacy industrial designs. |
| Dual-CAN + Ethernet + USB coexistence | Independent hardware blocks with dedicated DMA channels enable concurrent CAN FD gateway, Ethernet backhaul, and USB configuration port operation. |
| Real-time interrupt response | NVIC with tail-chaining and late-arrival handling achieves ≤12-cycle latency for critical fieldbus interrupts (e.g., CAN message arrival). |
| Low-power operation modes | Four reduced-power states (Sleep, Deep-sleep, Power-down, Deep power-down) with wake-up via RTC, CAN activity, Ethernet, or GPIO - extends battery life in remote nodes. |
| Hardware-accelerated peripherals | GPDMA controller supports memory-to-peripheral, peripheral-to-peripheral, and memory-to-memory transfers - offloads CPU during ADC sampling or Ethernet packet buffering. |
Applications
| Industrial Networking Gateway | Motor Control Drive |
|---|---|
Use Scenario: Protocol translation between Modbus RTU over RS-485 and EtherNet/IP over 100BASE-TX in factory automation. IC Role / Device Role / Timing Role: Central protocol processor executing real-time stack, managing dual CAN/Ethernet buffers, and synchronizing UART/ADC timestamps. Use Value: 100 MHz Cortex-M3 ensures <50 µs jitter on EtherNet/IP cyclic I/O updates while servicing CANopen master requests. | Use Scenario: Closed-loop three-phase BLDC motor control with Hall sensor feedback and current sensing. IC Role / Device Role / Timing Role: Motor control unit generating six PWM outputs with dead-time insertion, reading 12-bit ADC current samples at 20 kHz, and executing FOC algorithm. Use Value: Integrated motor control PWM block with complementary outputs and fault protection reduces external gate driver count by 30%. |
| Smart Energy Metering | Building Automation Controller |
Use Scenario: DIN-rail mounted eMeter with PLC communication, tamper detection, and LCD display interface. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC, IR/RF communication stacks, RTC-backed logging, and secure firmware updates. Use Value: 512 kB flash stores dual-bank secure bootloader and AES-128 encryption library; 20-byte RTC backup RAM retains calibration data during power loss. | Use Scenario: HVAC controller interfacing BACnet MS/TP, KNX TP1, and LonWorks transceivers via isolated UARTs. IC Role / Device Role / Timing Role: Fieldbus aggregation hub with four UARTs (two with RS-485 support), I2C for sensor fusion, and GPIO for relay/digital input control. Use Value: Four UARTs with fractional baud rate generators support simultaneous 9600 bps BACnet and 78.125 kbps KNX timing without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1769FBD100 | 120 MHz CPU, identical peripherals and pinout - higher clock enables tighter control loop timing. | Suitable where >100 MHz deterministic processing is required (e.g., servo motion profiling). | Select when application demands maximum CPU headroom without changing PCB or firmware architecture. |
| LPC1766FBD100 | 256 kB flash, same 100 MHz CPU, Ethernet, USB, dual CAN, but no DAC or I2S interface. | Cost-optimized variant for applications omitting audio or analog waveform generation. | Choose for budget-sensitive industrial controllers where DAC/I2S are unused - saves $0.85/unit at 10k volume. |
Compared with LPC1769FBD100, the LPC1768FBD100K delivers identical peripheral integration and pin compatibility at 100 MHz - making it optimal for deterministic real-time control where 20 MHz headroom is unnecessary; versus LPC1766FBD100, it adds 256 kB flash and DAC for firmware extensibility and analog actuation without board redesign.
Availability
LPC1768FBD100K is available at Aetrix Electronics and suitable for industrial networking gateways, motor control drives, smart energy metering, and building automation controllers requiring stable component supply across multi-year production cycles.
Supply support for LPC1768FBD100K 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The LPC176x series was designed as a high-integration, low-power ARM Cortex-M3 microcontroller family targeting industrial control, motor drive, and protocol gateway applications - emphasizing Ethernet+CAN+USB coexistence and legacy LPC23xx migration path.
FAQ
What is the maximum operating frequency of the LPC1768FBD100K?
The LPC1768FBD100K operates at a maximum CPU frequency of 100 MHz. This is achieved using the on-chip PLL, which can be driven by the main oscillator (1–25 MHz), internal 4 MHz RC oscillator, or RTC oscillator. The flash accelerator enables zero-wait-state execution at this speed, ensuring deterministic real-time performance for industrial control tasks.
Does the LPC1768FBD100K support Ethernet and USB simultaneously?
Yes, the LPC1768FBD100K integrates both an Ethernet MAC with RMII interface and a USB 2.0 full-speed Device/Host/OTG controller with on-chip PHY. These operate independently with dedicated DMA channels, allowing concurrent Ethernet packet forwarding and USB-based firmware updates or HID device emulation without resource conflict.
How many CAN interfaces does the LPC1768FBD100K include?
The LPC1768FBD100K includes two CAN 2.0B controllers. Both support standard and extended frame formats, programmable bit timing, and message filtering. They are fully functional in the LQFP100 package and share no pins with Ethernet or USB - enabling true dual-CAN gateway operation in automotive or industrial networks.
Is the LPC1768FBD100K pin-compatible with earlier NXP microcontrollers?
Yes, the LPC1768FBD100K is pin-compatible with the 100-pin LPC236x Arm7-based microcontroller series. This allows direct PCB replacement in existing designs, preserving layout, power delivery, and signal routing while upgrading to Cortex-M3 performance, enhanced debug features, and expanded peripheral sets including Ethernet and USB OTG.
What package type is used for the LPC1768FBD100K?
The LPC1768FBD100K uses the LQFP100 (SOT407-1) package: a plastic low-profile quad flat package with 100 leads and body dimensions of 14 mm × 14 mm × 1.4 mm. This package supports standard reflow soldering, offers robust thermal performance for industrial ambient temperatures, and provides full access to all 70 GPIOs and peripheral signals documented in the NXP LPC1769_68_67_66_65_64_63 datasheet Rev. 9.10.
LPC1768FBD100K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- LPC17xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, Ethernet, I2C, IrDA, Microwire, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 70
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 3.6V
- Data Converters:
- A/D 8x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1768FBD100K FAQ
1.How can I place an order for LPC1768FBD100K through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1768FBD100K 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 LPC1768FBD100K reliable?
The price and inventory of LPC1768FBD100K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1768FBD100K is usually 5 days.
3.What payment methods are accepted for LPC1768FBD100K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1768FBD100K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1768FBD100K?
LPC1768FBD100K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1768FBD100K 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 LPC1768FBD100K?
For technical support, including LPC1768FBD100K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1768FBD100K requirements.
6.How does Aetrix verify that LPC1768FBD100K is sourced from the original manufacturer or authorized distributors?
All LPC1768FBD100K 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 LPC1768FBD100K meets industry standards.
7.What is the process for return or replacement of LPC1768FBD100K?
All LPC1768FBD100K units undergo pre-shipment inspection (PSI). If there is an issue with LPC1768FBD100K, 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 LPC1768FBD100K part is unused and in its original packaging.
Return procedure for LPC1768FBD100K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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