NXP USA Inc. LPC1751FBD80,551

Mfr. Part

LPC1751FBD80,551

Manufacturer

Freescale / NXP Semiconductors

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Detailed Description

32-bit ARM Cortex-M3 microcontroller, 100 MHz core, 32 KB on-chip flash, 8 KB SRAM, 80-pin LQFP (12 x 12 mm), industrial temperature range, rich connectivity and peripherals, RoHS3 compliant, surface-mount

Key Features

ARM Cortex-M3 core at 100 MHz for fast real-time control

32 KB embedded Flash, 8 KB SRAM

52 programmable GPIOs

ADC: 6 channels, 12-bit

Internal oscillator with PLL support

Connectivity: CAN, I2C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB

Peripherals: DMA, PWM (including motor control PWM), watchdog timer, brown-out detect/reset, power-on reset

Operating voltage: 2.4 V to 3.6 V (typical 3.3 V systems)

Operating temperature: -40°C to +85°C (TA)

Package: 80-LQFP, surface-mount, tray

Series: LPC17xx, Base product number: LPC1751

RoHS3 compliant, lead-free manufacturing

Key Advantages

Balanced performance and power at 100 MHz, ideal for cost-sensitive designs

Mature ecosystem and documentation for LPC17xx, reducing development time

Flexible interfaces (USB, CAN, multiple UART/SPI/I2C) for mixed-communication systems

Reliable power management features (brown-out, POR, WDT) for robust operation

Integrated motor-control PWM and DMA enhance real-time control and throughput

Wide supply tolerance improves design flexibility across 3.3 V platforms

Industrial temperature range supports harsh environments

Packaging

Type: 80-pin LQFP for SMT assembly

Body size: 12 x 12 mm nominal; low-profile thin package

Lead pitch: typically 0.5 mm (confirm exact in datasheet)

Material: epoxy molding compound over copper leadframe; tin or NiPdAu plated leads depending on lot (see datasheet/PCN)

Pin configuration: 80 leads with up to 52 GPIOs; pins support USB, CAN, UARTs, SPI/SSP, I2C, ADC, PWM, power and clock pins

Thermal characteristics: designed for -40°C to +85°C ambient; actual thermal resistance depends on PCB and airflow (consult datasheet for θJA/θJC and reflow profile)

Electrical properties: 2.4 V to 3.6 V supply, CMOS I/O; ADC 12-bit; internal oscillator and PLL; USB Full-Speed capability; full details in datasheet

Supplier device package: 80-LQFP (12 x 12)

Factory packing: Tray for automated pick-and-place

Lifecycle

Current status: Generally active in NXP’s LPC17xx portfolio, but considered a mature product. Not announced as discontinued at the time of writing. Always verify latest PCN/EOL notices.

Pin-compatible or close family alternatives within LPC175x (same 80-LQFP footprint; check pin mapping and memory needs):

- LPC1752FBD80,551 (more flash and features)

- LPC1754FBD80,551

- LPC1756FBD80,551

- LPC1758FBD80,551

Same family, different package or more features (not pin-compatible):

- LPC1768FBD100,551 (LQFP100, more memory and peripherals)

- LPC1769 variants (higher performance)

Cross-vendor functional alternatives (not pin-compatible; require redesign):

- STMicroelectronics STM32F103 series (Cortex-M3)

- STMicroelectronics STM32F105/107 (Connectivity line)

- Texas Instruments TM4C123/TM4C129 series (Cortex-M4)

- Microchip ATSAM3X/SAM3S series (Cortex-M3)

If you need a true drop-in replacement or an exact cross, contact our sales team via the Y-IC website. We will verify availability, compatibility, and long-term supply.

Key Application Areas

Industrial control, PLC expansion modules, machine interfaces

Motor control and motion systems with PWM

CAN bus nodes in automotive and industrial networks

USB-enabled devices and gateways

Data loggers, instrumentation, and metering

Building automation and HVAC controllers

Consumer and appliance controllers with mixed serial interfaces

IoT edge devices needing multiple serial buses and ADC inputs

Datasheet

Y-IC hosts the most authoritative datasheet and technical documents for this model. Download the latest datasheet from this page to get exact electrical, timing, pinout, and layout guidance.

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