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LPC11U35FHI33/501

LPC11U35FHI33/501

MPN: LPC11U35FHI33/501,
NXP USA Inc.
ARM® Cortex®-M0 LPC11Uxx Microcontroller IC 32-Bit 50MHz 64KB (64K x 8) FLASH 32-HVQFN (5x5)
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Overview

The LPC11U35FHI33/501 is an ARM Cortex-M0 based microcontroller designed for low-power applications requiring integrated USB functionality. It operates at speeds up to 50MHz and includes 64KB of flash memory along with 4KB of on-chip EEPROM for non-volatile data storage. This device stands out for its ROM-based USB drivers, which simplify the implementation of USB HID, MSC, and CDC classes while reducing the application code footprint.

Why Choose This Part

This MCU integrates high-level ROM routines for 32-bit integer division and USB stacks, freeing up significant flash space for user applications. The 32-VFQFN package provides a compact 5x5mm footprint while offering 26 I/O pins and a 12KB SRAM buffer, making it highly efficient for space-constrained designs.

Applications

USB Human Interface Devices
Utilizing integrated ROM-based drivers to implement keyboards, mice, and custom controllers with minimal firmware overhead.
Portable Medical Instrumentation
Leveraging the 1.8V to 3.6V operating range and low-power modes for battery-operated diagnostic tools.
Industrial Data Loggers
Using the 4KB of integrated EEPROM to store configuration parameters and sensor calibration data without external memory.
Consumer PC Peripherals
Creating cost-effective USB-to-serial bridges or specialized dongles using the full-speed USB 2.0 interface.

Key Specifications

Speed 50MHz
RAM Size 12K x 8
Core Size 32-Bit
EEPROM Size 4K x 8
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity I2C, Microwire, SmartCard, SPI, SSP, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 26
Core Processor ARM Cortex-M0
Package / Case 32-VFQFN Exposed Pad
Data Converters A/D 8x10b SAR
Oscillator Type External, Internal
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 32-HVQFN (5x5)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V

Getting Started

Developers can use the MCUXpresso IDE or third-party ARM toolchains like Keil MDK or IAR EWARM for development. Hardware evaluation can be performed using the LPCXpresso11U37H board, which features a similar architecture and integrated debugger. Programming is supported through In-System Programming (ISP) via USART or USB, or via standard SWD debug probes.

Also Consider

ATSAMD21E18A-MFT MCHPMicrochip Technology - Provides a more powerful Cortex-M0+ core with 256KB flash and a highly flexible SERCOM interface system.
EFM32HG210F64G-C-QFN32 SiLSilicon Labs - Excellent choice for extreme energy efficiency in USB applications with a very low active current draw.