8 KB of Flash holds the firmware image. For a typical sensor-to-UART bridge or a small I/O expander, that is comfortable. If the application needs a bootloader plus a Modbus stack plus a lookup table, the 8 KB fills fast. The 2 KB SRAM handles runtime variables, stack, and a modest FIFO buffer. Watch the stack depth if you enable multiple interrupt sources or nested ISRs — 2 KB disappears quickly under a heavy interrupt load.
NXP LPC1111JHN33/103551 ARM Cortex-M0 MCU, 50 MHz, 8 KB Flash
MPNLPC1111JHN33/103551
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NXP LPC1100XL series ARM Cortex-M0 32-bit MCU, LPC1111JHN33/103551, 50 MHz, 8 KB Flash, 2 KB SRAM, 28 I/O, I²C/SPI/UART, 8x10-bit ADC, -40 to 105 °C, 32-HVQFN.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | LPC1100XL |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 50MHz |
| Package | Bulk |
| RAM size | 2K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Connectivity | I²C, SPI, 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) |
Product details
Frequently asked questions
What is the speed rating on the LPC1111JHN33/103551?
The core runs at 50 MHz, which is the maximum clock for this ARM Cortex-M0 device.
What is the operating temperature range for this MCU?
It is rated for -40 to 105 °C ambient, covering industrial and automotive-cabin environments.