NXP Semiconductors LPC812M101JDH16J

Overview

LPC812M101JDH16J 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 a State Configurable Timer/PWM (SCTimer), three USARTs, two SPI interfaces, one I²C-bus interface, and a comparator - enabling compact embedded control in lighting, motor, and climate systems.

For engineers reviewing the LPC812M101JDH16J datasheet, LPC812M101JDH16J pinout, LPC812M101JDH16J application, or LPC812M101JDH16J equivalent, key selection criteria include its switch-matrix–enabled peripheral routing, 5 V-tolerant GPIO with configurable pull-up/down, high-current sink on true open-drain pins, and Deep power-down wake-up capability via PIO0_4.

Technical Context

The LPC812M101JDH16J implements an ARM Cortex-M0+ core with single-cycle I/O access, NVIC, and Micro Trace Buffer (MTB) for real-time debugging. Its flexible switch matrix enables dynamic assignment of USART, SPI, I²C, and SCTimer functions to any non-power GPIO pin - decoupling peripheral logic from physical layout.

Power management includes four low-power modes (Sleep, Deep-sleep, Power-down, Deep power-down), with wake-up sources including USART/SPI/I²C activity and dedicated WAKEUP pin (PIO0_4). Clock generation supports internal 12 MHz RC oscillator (±1.5 %), external crystal (1–25 MHz), PLL, and multiple low-power oscillators for timer and watchdog functions.

Key Specifications

Pinout & Package

Package: TSSOP16 (plastic thin shrink small outline package; 16 leads; body width 4.4 mm, SOT403-1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC812M101JDH16J, the LPC812M101JD20 offers more GPIO in a larger SO20 package, while the LPC811M001JDH16 provides identical TSSOP16 fit with reduced memory and peripheral count - enabling scalable design reuse across product tiers.

Availability

LPC812M101JDH16J is available at Aetrix Electronics and suitable for lighting control, motor drive, and climate sensor applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature ranges (−40 °C to 105 °C).

Supply support for LPC812M101JDH16J 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 LPC81xM family is designed for cost-sensitive, low-power embedded control applications - delivering ARM Cortex-M0+ performance in compact packages with flexible peripheral routing and robust power management.

FAQ

What is the maximum operating frequency of the LPC812M101JDH16J?

The LPC812M101JDH16J operates at a maximum CPU frequency of 30 MHz using its ARM Cortex-M0+ core. This frequency is achievable with the internal 12 MHz RC oscillator (trimmed to ±1.5 %), external crystal (1–25 MHz), or PLL - all supported in the TSSOP16 package variant. The 30 MHz rating applies across the full industrial temperature range (−40 °C to 105 °C).

How many GPIO pins does the LPC812M101JDH16J provide in its TSSOP16 package?

The LPC812M101JDH16J provides 14 general-purpose I/O pins in the TSSOP16 package (SOT403-1), as confirmed in Table 2 of the datasheet. These include PIO0_0 through PIO0_13, with specific fixed functions (e.g., RESET, SWD, XTAL) shared on certain pins - all configurable via the switch matrix and IOCON block.

Does the LPC812M101JDH16J support In-Application Programming (IAP)?

Yes, the LPC812M101JDH16J supports In-Application Programming (IAP) via its on-chip 8 kB ROM, which includes dedicated IAP and ISP APIs. These routines enable flash memory updates during runtime without halting the application - critical for field-upgradable firmware in lighting, motor, and security systems using the LPC812M101JDH16J.

What are the true open-drain pins on the LPC812M101JDH16J and why are they important?

The LPC812M101JDH16J has two true open-drain pins: PIO0_10 and PIO0_11. They are essential for full I²C-bus compliance (standard/fast/fast-plus modes), as they support external pull-up resistors and high-current sinking (20 mA) without internal pull-ups interfering with bus arbitration - ensuring reliable multi-master communication in sensor networks using the LPC812M101JDH16J.

Can the LPC812M101JDH16J wake up from Deep power-down mode, and if so, how?

Yes, the LPC812M101JDH16J can wake up from Deep power-down mode via a LOW-going pulse ≥50 ns on PIO0_4 (WAKEUP pin). This pin must be externally pulled HIGH before entering Deep power-down. The wake-up event resets the device and resumes execution - enabling ultra-low-power operation (<1 μA) in battery-powered climate or security sensors using the LPC812M101JDH16J.