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NXP Semiconductors LPC1754FBD80,551
- Part No.:
- LPC1754FBD80,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
LPC1754FBD80,551.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,586
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Product details
Overview
LPC1754FBD80,551 from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 100 MHz, featuring 128 kB flash, 32 kB AHB SRAM, one CAN 2.0B channel, USB 2.0 Device/Host/OTG interface, and 52 GPIO pins in an 80-pin LQFP package. It targets industrial control and motor drive applications requiring real-time responsiveness and mixed-signal integration.
For engineers reviewing the LPC1754FBD80,551 datasheet, LPC1754FBD80,551 pinout, LPC1754FBD80,551 application, or LPC1754FBD80,551 equivalent, key selection criteria include its single-CAN capability, absence of Ethernet and I2S, DAC presence, 100 MHz CPU clock, and LQFP80 footprint compatibility with other LPC175x family members.
Technical Context
The LPC1754FBD80,551 implements the ARM Cortex-M3 core with a 3-stage pipeline, Harvard architecture, and integrated NVIC and MPU supporting eight memory regions. Its memory subsystem includes 128 kB on-chip flash with zero-wait-state operation at 100 MHz and 32 kB local AHB SRAM for high-performance CPU access.
Peripheral interconnect uses a multilayer AHB matrix enabling concurrent access by CPU, GPDMA, USB, and UART controllers without arbitration delay, while dual APB bridges isolate high-throughput peripherals like USB and CAN from latency-sensitive timers and ADC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 with 3-stage pipeline, NVIC, and MPU for memory protection and deterministic interrupt handling |
| Max Clock Frequency | 100 MHz - enables real-time execution of complex control algorithms with sub-microsecond timer resolution |
| Flash Memory | 128 kB - sufficient for firmware with bootloader, communication stacks (USB/CAN), and application logic |
| SRAM | 32 kB AHB SRAM + 16 kB AHB SRAM - dual-bank configuration supports simultaneous CPU and DMA access for USB/CAN buffering |
| GPIO Pins | 52 general-purpose I/O pins with configurable pull-up/down, open-drain mode, and bit-band support for atomic register access |
| Serial Interfaces | 4 UARTs (with RS-485/IrDA support), 1 CAN 2.0B channel, USB 2.0 Device/Host/OTG, 2 I²C, 2 SSP, SPI - full connectivity for industrial fieldbus and peripheral bridging |
| Analog Peripherals | 12-bit ADC (6-channel, 200 kSPS) and 10-bit DAC (1-channel, DMA-capable) - supports closed-loop analog feedback and waveform generation |
Pinout & Package
Package: 80-pin LQFP (12 mm × 12 mm × 1.4 mm, SOT315-1), RoHS-compliant, surface-mount with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TCK/SWDCLK | JTAG/SWD clock input | Enables debug and programming via industry-standard SWD interface; shared with JTAG TCK |
| P0[26]/AOUT | DAC analog output | Single-ended 10-bit voltage output (0–VREF) for precision analog control signals |
| P0[29]/USB_D+ | USB differential data+ | Full-speed USB 2.0 bidirectional signal; requires 27 Ω series termination and proper PCB routing |
| P0[30]/USB_D− | USB differential data− | Complementary USB D− line; must be length-matched to D+ within 100 mils for EMI compliance |
| P1[19]/USB_PPWR | USB port power enable | Active-high output controlling external USB VBUS switch; asserted during device enumeration |
| P2[10]/EINT0/NMI | External interrupt / non-maskable interrupt | Edge-sensitive wake-up source from Deep-sleep/Power-down modes; also triggers ISP entry on reset |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M3 with MPU | Eight-region memory protection prevents task interference and improves system reliability in multitasking environments |
| GPDMA controller | Eight-channel AHB-based DMA offloads CPU from UART/CAN/USB data movement, enabling low-latency peripheral servicing |
| USB 2.0 Device/Host/OTG | Integrated PHY and dedicated DMA allow seamless role switching between peripheral and host without external components |
| Motor control PWM block | Six-output PWM with dead-time insertion and fault protection supports three-phase inverter gate driving |
| Quadrature encoder interface | Dedicated hardware monitors external encoder position/speed with automatic index pulse capture and direction detection |
| Real-Time Clock (RTC) | Battery-backed 20-byte registers and separate 32.768 kHz oscillator maintain time across power cycles and deep sleep modes |
Applications
| Industrial Motor Control | Smart Lighting Systems |
|---|---|
Use Scenario: Closed-loop speed and torque regulation of BLDC/PMSM motors in HVAC blowers or conveyor drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing six PWM outputs, reading quadrature encoder feedback, and communicating via CAN bus. Use Value: Integrated motor control PWM, QEI, and single CAN channel eliminate external timing ICs and reduce BOM count by ≥3 components. | Use Scenario: DALI-2 or DMX512 lighting node with dimming, color mixing, and networked diagnostics. IC Role / Device Role / Timing Role: System-on-chip managing LED driver PWM, ambient light sensing via ADC, and bidirectional DALI bus communication. Use Value: 12-bit ADC with DMA and 10-bit DAC enable precise analog dimming control and sensor calibration without external converters. |
| Energy Metering Gateways | Alarm & Security Panels |
Use Scenario: Substation-level energy aggregator collecting data from multiple smart meters over RS-485 and forwarding via USB or CAN to SCADA. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU to USB CDC or CANopen, with timestamping via RTC and secure firmware updates. Use Value: Four UARTs (one with RS-485 support), USB OTG, and RTC with battery backup ensure reliable field communication and time-stamped event logging. | Use Scenario: Panel controller monitoring door/window sensors, smoke detectors, and siren drivers while supporting remote arming/disarming via USB HID keyboard emulation. IC Role / Device Role / Timing Role: Central security processor handling sensor polling, alarm state machine, audio playback via DAC, and human interface via USB keyboard/mouse class. Use Value: Integrated 10-bit DAC generates audible alarm tones; USB Device mode enables plug-and-play PC integration without custom drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1756FBD80 | 256 kB flash, 16 kB AHB SRAM1, dual CAN, no Ethernet, same LQFP80 package | Supports larger protocol stacks (e.g., full TCP/IP + CANopen) and dual-CAN automotive diagnostics | Select when firmware size exceeds 128 kB or dual-CAN bus redundancy is required |
| LPC1752FBD80,551 | 64 kB flash, 16 kB total SRAM, USB Device only, single CAN, no DAC | Suitable for cost-sensitive sensor nodes or simple USB HID devices without analog output | Choose for minimal-feature applications where DAC and USB Host/OTG are unnecessary |
Compared with LPC1754FBD80,551, the LPC1756FBD80 provides double flash and dual CAN for expanded connectivity, while the LPC1752FBD80,551 reduces memory and peripheral count for lower-cost deployments-both retain identical pinout and software compatibility within the LPC175x family.
Availability
LPC1754FBD80,551 is available at Aetrix Electronics and suitable for industrial motor control, smart lighting systems, energy metering gateways, and alarm & security panels requiring stable component supply and long-term design continuity.
Supply support for LPC1754FBD80,551 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 applications, with broad MCU, RF, and security portfolio.
The LPC175x product line delivers high-integration ARM Cortex-M3 microcontrollers optimized for real-time industrial control, motor drive, and human-machine interface applications with rich analog and communication peripherals.
FAQ
What is the maximum operating frequency of the LPC1754FBD80,551?
The LPC1754FBD80,551 operates at a maximum CPU frequency of 100 MHz, supported by its ARM Cortex-M3 core and flash accelerator enabling zero-wait-state execution. This frequency is achieved using the internal PLL driven by the main oscillator, internal RC oscillator, or RTC oscillator, ensuring flexibility across different clock source configurations in the LPC1754FBD80,551 design.
Does the LPC1754FBD80,551 include a DAC, and what is its resolution?
Yes, the LPC1754FBD80,551 includes a 10-bit Digital-to-Analog Converter (DAC) with dedicated conversion timer and DMA support. The DAC output is available on pin P0[26]/AOUT and provides a single-ended voltage output referenced to VREF, enabling analog waveform generation and precision control signal synthesis in the LPC1754FBD80,551 application.
How many CAN interfaces does the LPC1754FBD80,551 support?
The LPC1754FBD80,551 supports exactly one CAN 2.0B controller channel, as confirmed in Table 2 of the official datasheet. This differs from higher-tier variants like the LPC1756FBD80 (dual CAN) and LPC1759FBD80 (dual CAN), making the LPC1754FBD80,551 appropriate for single-bus industrial networks or automotive body control modules.
Is Ethernet MAC available on the LPC1754FBD80,551?
No, the LPC1754FBD80,551 does not include an Ethernet MAC peripheral. Ethernet functionality is exclusive to the LPC1758FBD80 variant per the datasheet's ordering table and feature summary. The LPC1754FBD80,551 retains full USB 2.0 Device/Host/OTG, CAN, UART, and I²C connectivity but omits Ethernet hardware to reduce cost and die size.
What package type is used for the LPC1754FBD80,551?
The LPC1754FBD80,551 is housed in an 80-pin LQFP package (SOT315-1) measuring 12 mm × 12 mm × 1.4 mm. This package is pin-compatible with other LPC175x family members including LPC1752, LPC1756, and LPC1758, enabling scalable design reuse and migration paths within the same footprint for the LPC1754FBD80,551.
LPC1754FBD80,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- LPC17xx
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 3.6V
- Data Converters:
- A/D 6x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1754FBD80,551 FAQ
1.How can I place an order for LPC1754FBD80,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1754FBD80,551 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 LPC1754FBD80,551 reliable?
The price and inventory of LPC1754FBD80,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1754FBD80,551 is usually 5 days.
3.What payment methods are accepted for LPC1754FBD80,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1754FBD80,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1754FBD80,551?
LPC1754FBD80,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1754FBD80,551 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 LPC1754FBD80,551?
For technical support, including LPC1754FBD80,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1754FBD80,551 requirements.
6.How does Aetrix verify that LPC1754FBD80,551 is sourced from the original manufacturer or authorized distributors?
All LPC1754FBD80,551 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 LPC1754FBD80,551 meets industry standards.
7.What is the process for return or replacement of LPC1754FBD80,551?
All LPC1754FBD80,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC1754FBD80,551, 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 LPC1754FBD80,551 part is unused and in its original packaging.
Return procedure for LPC1754FBD80,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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