LPC1756FBD80Y - 32-Bit 100MHz Cortex-M3 MCU | NXP
MPN: LPC1756FBD80Y ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $16.0568 | $16.06 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LPC1756FBD80Y Overview
A microcontroller is a programmable embedded-processing IC that integrates a CPU core, memory, peripherals, and interface logic on one package. The LPC1756 belongs to the ARM Cortex-M microcontroller class, commonly called a microcontroller unit or MCU. This device is intended for embedded systems that require deterministic real-time control, serial communications, analog measurement, and moderate firmware storage. The LQFP-80 package provides a conventional surface-mount footprint with externally accessible leads for board assembly and inspection.
The LPC1756FBD80Y combines a high-performance Cortex-M3 core with extensive communication and control resources. Its 256 KB flash provides room for application code and boot routines, while 32 KB SRAM supports stack, data, and working memory requirements. The integrated communication peripherals reduce the need for separate interface controllers when a system uses USB, CAN, UART, SPI, I2C, or I2S links. The 12-bit ADC supports analog sensor front ends, and the DAC provides a convenient digital-to-analog output for control or signal-generation functions.
The 100 MHz Cortex-M3 core provides substantially more processing headroom than lower-frequency 8-bit or entry-level 32-bit controllers. Its architecture supports efficient interrupt-driven embedded applications, while the DMA controller can transfer data between peripherals and memory with reduced processor involvement. The two CAN channels are useful for industrial networking, and the motor-control PWM and quadrature encoder resources support motion-control implementations. USB connectivity enables the MCU to serve as a USB device, host, or OTG interface depending on the system design.
Typical applications include industrial automation modules, USB-to-serial equipment, CAN-connected controllers, motor-control boards, data-acquisition systems, medical and diagnostic instruments, and embedded gateways. The LPC1756 is especially appropriate when a design needs several serial interfaces in one MCU rather than a processor accompanied by multiple communications ICs. Its integrated analog and timing resources also make it useful for sensor conditioning, control loops, and mixed signal embedded products.
Designers should verify the exact pin multiplexing, power requirements, clock configuration, and peripheral instance assignments against the NXP datasheet and reference manual. The 80-pin LQFP footprint is suitable for conventional PCB routing, but high-speed USB and communication interfaces require careful trace layout, return paths, decoupling, and controlled impedance. Firmware should also account for startup configuration, peripheral clock setup, and DMA cache or memory-access considerations where applicable. This product page combines verified NXP and distributor information with application guidance and design-focused selection criteria.
The LPC1756FBD80Y is a single-package embedded controller for designs requiring more communication and analog capability than a basic MCU provides. Its exact electrical limits, operating temperature, voltage ranges, pin names, and package details should be confirmed in the current NXP documentation before design release. Contact XAIPART for purchasing support, current availability, and quotation details.
Drop-in alternatives for LPC1756FBD80Y — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LPC1756FBD80
✅ Drop-In📋 Reference alternative (not in catalog)
LPC1756FBD80Y
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →LPC1756FBD80
✅ Drop-In📋 Reference alternative (not in catalog)
LPC1756FBD80
✅ Drop-In📋 Reference alternative (not in catalog)
LPC1756FBD80
✅ Drop-In📋 Reference alternative (not in catalog)
LPC1756FBD80Y Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum Core Frequency | 100 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| CPU Core | ARM Cortex-M3 |
| USB Support | USB Device, USB Host, and USB OTG |
| DMA Channels | 8 channels |
| UART Controllers | 4 |
| CAN Channels | 2 |
| SSP Controllers | 2 |
| SPI Controller | 1 |
| I2C Controllers | 2 |
| ADC | 8-channel, 12-bit ADC |
| DAC | Present |
| Motor-Control PWM | Present |
| Quadrature Encoder Interface | Present |
| Package | 80-LQFP, 12 x 12 mm |
| Mounting Type | Surface Mount |
LPC1756FBD80Y 80-lqfp, 12 x 12 mm Pin Configuration Guide
Pin configuration for LPC1756FBD80Y (80-lqfp, 12 x 12 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for LPC1756FBD80Y.
Refer to the datasheet for full pin configuration.
Typical Applications
LPC1756FBD80Y is suitable for 7 applications: Industrial Automation Controller, USB-Connected Embedded System, Data-Acquisition and Monitoring System, Motor Control and Position Feedback, USB-to-CAN Gateway, Embedded Data Logger, Medical and Diagnostic Instrument Control.
Industrial Automation Controller
The NXP LPC1756FBD80Y fits industrial automation controllers because it combines a 100 MHz ARM Cortex-M3 core with two CAN channels, four UARTs, and multiple serial peripherals. It can coordinate remote sensors, motor-control functions, and service communications without requiring several separate interface ICs. The two CAN channels are particularly useful when a machine controller must connect to distributed nodes over a robust industrial bus. Designers should add appropriate CAN transceivers, protection components, isolation where required, and validated bus termination. The 256 kB flash and 32 kB SRAM provide room for control firmware, communication stacks, diagnostics, and working buffers.
Recommended
USB-Connected Embedded System
The LPC1756FBD80Y is suitable for USB-connected embedded systems because NXP specifies USB Device, USB Host, and USB OTG capability alongside a 100 MHz Cortex-M3 core and 256 kB flash. It can serve as a USB peripheral controller, host, or dual-role device depending on firmware and board design. USB projects benefit from the integrated controller and the availability of four UARTs, SPI, I2C, and SSP interfaces for connecting sensors, displays, or storage. The PCB must provide correct USB routing, power supervision, transceiver or connector implementation, ESD protection, and firmware support for the selected USB role.
Recommended
Data-Acquisition and Monitoring System
The LPC1756FBD80Y supports data-acquisition designs that require analog measurement alongside communications and control. Its 8-channel 12-bit ADC can sample multiple sensor inputs, while the DAC provides an analog output for excitation, calibration, or test functions. Four UARTs and the SPI, SSP, and I2C controllers allow the MCU to connect to external sensors, displays, memory, and data-logging components. The 100 MHz core can handle acquisition sequencing and local processing, while the 32 kB SRAM supports buffers and working data. Exact input voltage, sampling, and conversion performance must be confirmed from the manufacturer datasheet before designing the analog front end.
Recommended
Motor Control and Position Feedback
The LPC1756FBD80Y is a reasonable match for compact motion-control and position-feedback systems because it includes motor-control PWM, a quadrature encoder interface, and a 100 MHz Cortex-M3 core. PWM outputs can generate motor-drive timing signals, while the quadrature encoder interface can track direction and relative position from an external encoder. The two CAN channels can connect the controller to a broader machine network, and the ADC can monitor current or temperature signals. Actual motor performance depends on external gate drivers, power transistors, current sensing, protection circuitry, timing calibration, and safe shutdown hardware that are outside the MCU package.
Recommended
USB-to-CAN Gateway
The LPC1756FBD80Y can form the core of a USB-to-CAN gateway because it combines USB connectivity, two CAN channels, a high-performance 100 MHz Cortex-M3 core, and substantial memory. Firmware can expose a USB host or USB device interface to a computer while handling CAN frames through the integrated controller. The two CAN channels also permit dual-bus gateways or redundant monitoring configurations. A production design still needs CAN transceivers, bus protection, termination, isolated power when required, connector design, firmware drivers, and host-side protocol support. Validate timing, bus error handling, and operating-temperature requirements against the NXP documentation.
Recommended
Embedded Data Logger
The LPC1756FBD80Y is suitable for an embedded data logger when a design needs local control, multiple sensors, communications, and USB connectivity in one MCU. The 256 kB flash can hold firmware and configuration data, while the 32 kB SRAM can support acquisition buffers and protocol processing. Four UARTs, SPI, I2C, SSP, and USB provide flexible paths to sensors, storage media, and host computers. The 8-channel 12-bit ADC is useful for logging analog measurements. For production designs, engineers must select suitable nonvolatile storage, manage write endurance, define data formatting, validate timing, and confirm the complete operating electrical limits from the current NXP documentation.
Recommended
Medical and Diagnostic Instrument Control
The LPC1756FBD80Y can be used as the control processor in medical and diagnostic instruments when the system needs deterministic control, USB connectivity, analog measurement, and multiple communication interfaces. The Cortex-M3 core and 100 MHz operating frequency support firmware coordination, while the ADC and DAC assist with sensor acquisition and test-signal generation. USB can simplify connection to a host computer, and UART, CAN, SPI, and I2C support connection to sensors, displays, and service interfaces. Medical use requires application-specific risk analysis, electrical isolation where needed, validated test procedures, and compliance with the relevant medical-device requirements; those requirements are not established by the supplied data.
Recommended
Recommended Products Summary
Engineering reference data for LPC1756FBD80Y — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LPC1756FBD80 | LPC1756FBD80Y | LPC1756FBD80 | LPC1756FBD80 | LPC1756FBD80 |
|---|---|---|---|---|---|---|
| Manufacturer | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-LQFP (12x12) | 80-LQFP (12x12) | 80-LQFP (12x12) | 80-LQFP (12x12) | 80-LQFP (12x12) | 80-LQFP (12x12) |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 256 KB | 256 kB | 256 KB | 256 kB | 256 kB | 256 kB |
| SRAM | 32 KB | 32 kB | 32 kB | 32 kB | 32 kB | 32 kB |
| USB | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG | Device, Host, and OTG |
| CAN Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| ADC | 8-channel, 12-bit | 8-channel, 12-bit | 8-channel, 12-bit | 8-channel, 12-bit | 8-channel, 12-bit | 8-channel, 12-bit |
Key Differentiators
- Integrated communication breadth (vs LPC1756FBD80)
- Analog and motion-control integration (vs LPC1756FBD80)
- Processing and memory capacity (vs LPC1756FBD80)
Design Notes
Place the decoupling network at the MCU power pins using the capacitor values and placement specified in the NXP hardware design guidance. Route high-speed USB, clock, and communication signals over continuous reference planes, avoid long stubs, and keep noisy switching or motor-drive return currents away from sensitive analog and digital paths. The 80-LQFP footprint also requires adequate fan-out for all package leads and thermal-via planning where required.
USB, CAN, UART, SPI, I2C, and other communication lines should be routed with deliberate return paths and verified against the applicable interface timing and impedance requirements. Keep the USB differential pair as short and symmetric as practical, use appropriate connector and ESD protection, and separate analog input routing from switching nodes. Confirm final pin multiplexing and alternate-function settings against the LPC1756FBD80 datasheet rather than relying on family-level assumptions.
Do not treat the LPC1756FBD80Y suffix as interchangeable with every LPC1756 ordering code without confirming the package, temperature range, clock configuration, and ordering details. Similarly, do not assume a different Cortex-M3 MCU is a drop-in replacement merely because it has the same core family. Validate pin names, alternate functions, memory behavior, peripheral registers, startup code, and USB or CAN electrical requirements before PCB release.
Design the power tree around the exact operating voltage and current limits stated in the current NXP datasheet, because those values were not included in the verified snippets. Account for startup current, USB transceiver current, analog reference stability, and external peripheral loads. Separate sensitive analog and digital supplies using the manufacturer-recommended filtering and grounding strategy, and verify brownout, power sequencing, and thermal behavior in the final enclosure.
Compliance Information
The supplied verified data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Confirm current compliance documentation from NXP or an authorized distributor.
