Peripherals and I/O — what is on the pins
The 28 I/O lines include an 8-channel 10-bit ADC, plus I²C, SPI, and UART interfaces. Internal oscillator keeps the BOM to one MCU and decoupling caps for many applications.
NXP LPC1112FHN33/101551 ARM Cortex-M0 MCU, 50 MHz, 16 KB Flash
MPNLPC1112FHN33/101551
Active
NXP LPC1100 series 32-bit ARM Cortex-M0 MCU, LPC1112FHN33/101551, 50 MHz core, 16 KB Flash, 2 KB RAM, 28 I/O, I²C/SPI/UART, 1.8 V to 3.6 V supply, -40 to 85 °C, 32-HVQFN package.
$4.2200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | LPC1100 |
| 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 | 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 | 16KB (16K x 8) |
Product details
Frequently asked questions
Is the LPC1112FHN33/101551 still active or obsolete?
The LPC1112FHN33/101551 is listed as Active with no discontinuation notice on file. It remains available for new designs and ongoing production.
What is the operating voltage range for LPC1112FHN33/101551?
The supply range is 1.8 V to 3.6 V, covering both 3.3 V and 1.8 V logic rails commonly found in mixed-voltage designs.
What is the pinout of LPC1112FHN33/101551?
The part uses a 32-HVQFN (7x7 mm) exposed-pad package. Pin assignments are documented in the NXP LPC111x datasheet; the 28 I/O include multiplexed functions for the ADC, I²C, SPI, and UART peripherals.
Can I replace LPC1112FHN33/101551 with LPC1112FHN33?
The base product number LPC1112 covers multiple Flash and package variants. The FHN33 suffix indicates the 32-HVQFN package and 16 KB Flash variant. Verify the full order code matches your BOM — a different suffix may change memory size, package, or temperature grade.
What is LPC1112FHN33/101551's listed speed?
The core runs at 50 MHz, which sets the maximum SPI clock rate and UART baud rate achievable without prescaling.