NXP LPC11Uxx series 32-bit ARM Cortex-M0 MCU, LPC11U34FBD48/421151, 50 MHz, 48 KB Flash, 10 KB SRAM, 4 KB EEPROM, USB 2.0, 40 I/O, 48-LQFP, -40 to 85°C.
| Parameter | Value |
|---|---|
| Series | LPC11Uxx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Bulk |
| RAM size | 10K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 4K x 8 |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Connectivity | I²C, Microwire, SmartCard, SPI, SSP, UART/USART, USB |
| Number of i (O) | 40 |
| Core processor | ARM® Cortex®-M0 |
| Case | 48-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 48KB (48K x 8) |
At 50 MHz, the Cortex-M0 handles USB polling and serial protocol parsing. The single-cycle 32-bit core delivers roughly 50 MIPS for real-time sensor polling and Modbus RTU framing.
48 KB Flash holds a USB stack, a bootloader, and a moderate application image. 10 KB SRAM leaves room for USB endpoint buffers plus a serial receive ring buffer. 4 KB EEPROM stores calibration constants.
The ARM Cortex-M0 core runs at 50 MHz, providing roughly 50 MIPS of single-cycle integer throughput.
It includes I²C, Microwire, SmartCard, SPI, SSP, UART/USART, and USB 2.0 full-speed device, covering most common embedded serial protocols.