NXP LPC11Exx series 32-bit ARM Cortex-M0 MCU, LPC11E11FHN33/101551, 50 MHz core, 8 KB Flash, 4 KB RAM, 512 B EEPROM, 28 I/O, I²C/SPI/UART, -40 to 85 °C, 32-HVQFN exposed pad.
| Parameter | Value |
|---|---|
| Series | LPC11Exx |
| 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 | 4K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 512 x 8 |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Connectivity | I²C, Microwire, SPI, SSI, SSP, UART/USART |
| Number of i (O) | 28 |
| Core processor | ARM® Cortex®-M0 |
| Case | 32-VQFN Exposed Pad |
| Data converters | A/D 8x10b |
| Program memory size | 8KB (8K x 8) |
The NXP LPC11E11FHN33/101551 is a 32-bit ARM Cortex-M0 microcontroller in the LPC11Exx family, clocked at 50 MHz.
8 KB Flash and 4 KB RAM are tight by modern standards. The 512-byte EEPROM block is useful for calibration constants, serial numbers, or fault counters that must survive a power cycle. Firmware teams should budget for a compact RTOS or a bare-metal scheduler; a full FreeRTOS heap will eat most of the 4 KB SRAM.
The core runs at 50 MHz. That is the maximum clock from the internal oscillator or an external source; no PLL multiplication is available on this entry-level Cortex-M0.
The LPC11E12FHN33/201551 (if available) offers the same pinout with 16 KB Flash and 4 KB RAM — double the program memory for firmware growth. Verify the exact order code against your BOM; NXP's LPC11Exx family shares the HVQFN footprint across density options.