NXP Semiconductors LPC1113FHN33/301,5

Overview

LPC1113FHN33/301 from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in HVQFN33 package, operating at up to 50 MHz with 24 kB flash, 8 kB SRAM, one UART with RS-485 support, one I²C-bus interface (Fast-mode Plus), two SPI controllers, four timers, and a 10-bit ADC-designed for cost-sensitive industrial control and smart sensor nodes.

For engineers reviewing the LPC1113FHN33/301 datasheet, LPC1113FHN33/301 pinout, LPC1113FHN33/301 application, or LPC1113FHN33/301 equivalent, key selection criteria include its 8 kB SRAM capacity, HVQFN33 thermal-enhanced footprint, absence of power profiles (LPC1100 series), and full peripheral set including dual SPI and Fast-mode Plus I²C.

Technical Context

The LPC1113FHN33/301 implements the ARM Cortex-M0 core with NVIC and Serial Wire Debug, supporting up to 50 MHz CPU operation via internal RC oscillator (1 % trimmed), crystal (1–25 MHz), or PLL. It lacks the windowed watchdog timer and power profile API found in LPC1100L/XL variants.

Its peripheral subsystem includes a 10-bit ADC with up to 8 input channels, two SPI interfaces (SSP-capable with FIFO), one UART with fractional baud rate generation and RS-485 support, and four general-purpose timers-two 32-bit and two 16-bit-with capture/match functionality across 28 GPIO pins.

Key Specifications

Pinout & Package

HVQFN33 package: plastic thermal-enhanced very thin quad flat package, no leads, 33 terminals, body size 7 × 7 × 0.85 mm, exposed thermal pad for improved heat dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with LPC1113FHN33/301, the LQFP48 variant offers greater I/O scalability while the LPC1100L-series alternative adds power management APIs-neither is pin-compatible due to different package types and functional subsets, making LPC1113FHN33/301 optimal for space-constrained, fixed-power industrial nodes.

Availability

LPC1113FHN33/301 is available at Aetrix Electronics and suitable for smart lighting control, industrial sensor nodes, home alarm panels, and white goods UI controllers requiring stable component supply and long-term industrial lifecycle support.

Supply support for LPC1113FHN33/301 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC111x family targets cost-optimized 32-bit replacement of legacy 8/16-bit MCUs, emphasizing low power, small footprint, and integrated peripherals for embedded control in resource-constrained applications.

FAQ

What is the maximum operating frequency of the LPC1113FHN33/301?

The LPC1113FHN33/301 operates at a maximum CPU frequency of 50 MHz. This speed is achievable using the internal 12 MHz RC oscillator (trimmed to ±1 %), an external crystal (1–25 MHz), or the on-chip PLL. The 50 MHz limit applies regardless of clock source and is validated across the industrial temperature range (−40 °C to +85 °C).

Does the LPC1113FHN33/301 support in-system programming (ISP)?

Yes, the LPC1113FHN33/301 supports in-system programming via its built-in boot ROM. Firmware updates can be performed over UART using standard ISP commands, eliminating the need for external debug hardware. This capability is fully implemented in the LPC1113FHN33/301 and does not require additional bootloader code.

How many ADC channels does the LPC1113FHN33/301 provide?

The LPC1113FHN33/301 integrates a 10-bit successive approximation ADC with input multiplexing across eight pins (AD0–AD7). All eight channels are accessible on the HVQFN33 package, mapped to GPIO pins PIO1_3 through PIO1_11, enabling simultaneous analog sensing of multiple sensors without external multiplexers.

Is the LPC1113FHN33/301 pin-compatible with other LPC111x HVQFN33 variants?

Yes, the LPC1113FHN33/301 shares identical pinout and package dimensions with all other LPC111x HVQFN33 variants (e.g., LPC1112FHN33/xxx, LPC1114FHN33/xxx). Pin assignments-including RESET, SWD, UART, I²C, SPI, ADC, and GPIO-are functionally consistent across the family, enabling hardware reuse across flash/SRAM configurations.

What debug interface does the LPC1113FHN33/301 support?

The LPC1113FHN33/301 supports Serial Wire Debug (SWD) using two dedicated pins: SWDIO and SWCLK. This two-wire interface provides full programming, breakpoint, and real-time variable inspection capabilities compatible with standard ARM debug tools (e.g., LPC-Link2, CMSIS-DAP adapters), without requiring JTAG cabling or additional pins.