NXP Semiconductors LPC812M101JDH16FP

Overview

LPC812M101JDH16FP from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller operating at up to 30 MHz, featuring 16 kB flash, 4 kB SRAM, and 14 GPIO pins in a TSSOP16 package. It integrates three USARTs, two SPI interfaces, one I²C-bus interface, a state-configurable timer/PWM (SCTimer), and a comparator - enabling compact embedded control in lighting, motor, and climate systems.

For engineers reviewing the LPC812M101JDH16FP datasheet, LPC812M101JDH16FP pinout, LPC812M101JDH16FP application, or LPC812M101JDH16FP equivalent, this device supports flexible peripheral routing via its switch matrix, low-power Deep-sleep/Deep power-down modes with wake-up on GPIO or serial activity, and ROM-based ISP/IAP for field firmware updates.

Technical Context

The LPC812M101JDH16FP implements an ARM Cortex-M0+ core with single-cycle I/O, NVIC, SysTick timer, and Micro Trace Buffer (MTB) for real-time debugging. Its clock system combines a 12 MHz ±1.5% internal RC oscillator, programmable PLL, crystal oscillator (1–25 MHz), and multiple low-power oscillators including a 10 kHz WKT source.

Peripheral routing is managed by a hardware switch matrix that assigns movable functions - such as USART0/1/2, SPI0/1, I²C0, SCTimer inputs/outputs, and comparator output - to any non-power GPIO pin (PIO0_0 to PIO0_17), while fixed functions (SWDIO, SWCLK, RESET, XTALIN/XTALOUT, WAKEUP) remain mapped to dedicated pins per TSSOP16 layout.

Key Specifications

Pinout & Package

TSSOP16 package (SOT403-1): 4.4 mm body width, 0.65 mm pitch, 16-pin surface-mount with exposed thermal pad not present - suitable for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC811M001JDH16, the LPC812M101JDH16FP provides expanded serial capacity and larger memory for feature-rich firmware; versus STM32F030F4P6, it trades USB for superior pin-muxing agility and ultra-low-power wake-up precision - making it optimal for space-constrained, multi-interface industrial endpoints.

Availability

LPC812M101JDH16FP is available at Aetrix Electronics and suitable for lighting control, motor drive interface, and industrial sensor node applications requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature ranges.

Supply support for LPC812M101JDH16FP 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, with deep expertise in ARM-based microcontrollers and edge processing.

The LPC81xM product line targets cost-sensitive, space-constrained embedded applications requiring high peripheral flexibility, ultra-low power consumption, and robust industrial temperature operation - delivering Cortex-M0+ performance in minimal footprints.

FAQ

What is the maximum operating frequency of the LPC812M101JDH16FP?

The LPC812M101JDH16FP operates at a maximum CPU frequency of 30 MHz, achieved via its ARM Cortex-M0+ core with integrated PLL. This frequency is attainable using the internal 12 MHz RC oscillator, external crystal (1–25 MHz), or CLKIN signal - all supported without requiring high-frequency external components. The 30 MHz limit applies across the full −40 °C to 105 °C industrial temperature range.

Does the LPC812M101JDH16FP support in-system programming (ISP) without a debugger?

Yes, the LPC812M101JDH16FP includes an 8 kB ROM bootloader enabling UART-based In-System Programming (ISP). For chip revisions 4C and later in TSSOP16 packages like the LPC812M101JDH16FP, pulling PIO0_12 LOW during reset activates the ISP handler. This allows firmware updates directly over USART0 using standard terminal tools - eliminating dependency on SWD debuggers for field maintenance.

How many GPIO pins does the LPC812M101JDH16FP have, and what special drive capabilities do they offer?

The LPC812M101JDH16FP provides 14 general-purpose I/O pins in its TSSOP16 package. Four pins support 20 mA source drive, and two pins (PIO0_10 and PIO0_11) are true open-drain with 20 mA sink capability - suitable for driving LEDs, small relays, or I²C buses. All GPIOs feature configurable pull-up/down resistors, glitch filtering, input inversion, and hysteresis control via the IOCON block.

Can the LPC812M101JDH16FP wake up from Deep power-down mode using serial peripheral activity?

Yes, the LPC812M101JDH16FP can wake from Deep power-down mode on activity from USART0, USART1, USART2, SPI0, SPI1, or I²C0 peripherals - in addition to the dedicated PIO0_4 WAKEUP pin. This enables ultra-low-power sensor nodes to remain asleep until receiving a command or data packet, reducing average current to sub-µA levels while maintaining responsive communication readiness.

What is the role of the switch matrix in the LPC812M101JDH16FP, and which peripherals benefit from it?

The switch matrix in the LPC812M101JDH16FP dynamically routes movable peripheral functions - including all USART, SPI, I²C, SCTimer, and comparator signals - to any non-power GPIO pin (PIO0_0 to PIO0_17). This eliminates fixed pin conflicts, enables optimal PCB routing, and allows identical firmware to run across different LPC81xM package variants. Fixed functions like SWD, RESET, and XTAL remain on dedicated pins.