NXP Semiconductors LPC1114JHI33/303E

Overview

LPC1114JHI33/303E from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in a 5×5 mm HVQFN33 package, featuring 32 kB flash, 8 kB SRAM, 10-bit ADC with 8-channel input multiplexing, UART with RS-485 support, and Fast-mode Plus I²C interface operating at 1 Mbit/s - deployed in industrial lighting control systems requiring compact size, extended temperature operation, and low-power sleep modes.

For engineers reviewing the LPC1114JHI33/303E datasheet, LPC1114JHI33/303E pinout, LPC1114JHI33/303E application, or LPC1114JHI33/303E equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for embedded firmware development, BOM optimization, and thermal-constrained PCB layout.

Technical Context

The LPC1114JHI33/303E implements the ARM Cortex-M0 core with Nested Vectored Interrupt Controller (NVIC) and operates at up to 50 MHz using either internal 12 MHz RC oscillator (±1 % accuracy) or external crystal (1–25 MHz). It integrates a programmable windowed watchdog timer and power management unit supporting Sleep, Deep-sleep, and Deep power-down modes.

Peripherals include one UART with fractional baud rate generation and RS-485/EIA-485 support, two SPI controllers with FIFO and multi-protocol capability (second SPI available), and a Fast-mode Plus I²C-bus interface with monitor mode and multiple address recognition - all accessible via 28 GPIO pins with configurable pull-up/pull-down and open-drain mode.

Key Specifications

Pinout & Package

HVQFN33 (5×5 mm, 0.5 mm pitch, 33-terminal no-lead package) with exposed thermal pad for enhanced heat dissipation in thermally constrained applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit ARM Cortex-M0 microcontroller applications.

Compared with LPC1114FHI33/303, the LPC1114JHI33/303E adds extended temperature qualification without sacrificing performance or features; versus LPC1114JBD48/303, it trades I/O count and ease of assembly for superior thermal density and space savings in miniaturized designs.

Availability

LPC1114JHI33/303E is available at Aetrix Electronics and suitable for industrial lighting control, smart metering interfaces, and white goods motor control requiring stable component supply across long production lifecycles.

Supply support for LPC1114JHI33/303E 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC111x series targets cost-sensitive, low-power embedded applications where ARM Cortex-M0 efficiency, integrated analog peripherals, and compact packaging deliver optimal balance of performance and footprint.

FAQ

What is the maximum operating frequency of the LPC1114JHI33/303E?

The LPC1114JHI33/303E operates at a maximum CPU frequency of 50 MHz. This is achieved using either the internal 12 MHz RC oscillator (trimmed to ±1 % accuracy) or an external crystal oscillator (1–25 MHz) with integrated PLL. The 50 MHz clock enables real-time processing of sensor data, communication stacks, and control algorithms without external clock synthesis.

Does the LPC1114JHI33/303E support hardware debug interfaces?

Yes, the LPC1114JHI33/303E supports Serial Wire Debug (SWD) via dedicated SWDIO and SWCLK pins. This two-wire interface provides full debug functionality including breakpoints, register access, and memory inspection. No JTAG header is required, reducing PCB footprint and simplifying development setup for the LPC1114JHI33/303E.

How many analog-to-digital converter (ADC) channels does the LPC1114JHI33/303E provide?

The LPC1114JHI33/303E integrates a 10-bit successive approximation register (SAR) ADC with input multiplexing across up to eight pins (AD[7:0]). All eight channels are accessible in the HVQFN33 package. This enables concurrent monitoring of multiple analog sensors - such as temperature, voltage, or current - without external multiplexers or additional ICs.

What is the significance of the 'J' suffix in LPC1114JHI33/303E?

The 'J' in LPC1114JHI33/303E denotes the extended temperature grade: −40 °C to +105 °C. This qualifies the LPC1114JHI33/303E for deployment in harsh environments including industrial motor drives, automotive cabin modules, and outdoor lighting systems where ambient temperatures exceed standard commercial grade limits.

Can the LPC1114JHI33/303E operate from a single power supply?

Yes, the LPC1114JHI33/303E operates from a single 1.8 V to 3.6 V supply rail. It integrates an on-chip Power Management Unit (PMU) that manages voltage scaling and low-power modes - including Sleep, Deep-sleep, and Deep power-down - enabling sub-μA standby current. This simplifies power design and eliminates need for multiple regulators in the LPC1114JHI33/303E system.