NXP Semiconductors LPC822M101JHI33E

Overview

LPC822M101JHI33E from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller operating at up to 30 MHz, featuring 16 KB flash, 4 KB SRAM, a 12-bit ADC with 12 input channels, one analog comparator, and three USART interfaces. It serves as a low-cost, low-power control core in compact embedded systems requiring mixed-signal I/O and flexible peripheral routing via its switch matrix.

For engineers reviewing the LPC822M101JHI33E datasheet, LPC822M101JHI33E pinout, LPC822M101JHI33E application, or LPC822M101JHI33E equivalent, key selection considerations include its HVQFN33 package with 29 GPIOs, self-wake-up timer support for deep power-down recovery, I2C Fast-mode Plus capability on dedicated pins, and ROM-based APIs for ADC, SPI, and IAP firmware updates.

Technical Context

The LPC822M101JHI33E implements an ARM Cortex-M0+ core (r0p1) with single-cycle I/O, NVIC, and SysTick - all tightly integrated with a multi-layer AHB bus and APB peripherals. Its switch matrix enables dynamic assignment of USART, SPI, I2C, SCTimer, and ADC trigger functions to any non-power GPIO pin.

Peripheral subsystems include a 12-bit ADC sampling at up to 1.2 Msamples/s with dual conversion sequences, a state-configurable timer (SCTimer/PWM) supporting capture/match and PWM generation, four-channel MRT for fixed-rate interrupts, and a self-wake-up timer (WKT) operable from deep power-down using internal or external clock sources.

Key Specifications

Pinout & Package

HVQFN33 package: plastic thermal-enhanced very thin quad flat package, no leads, 33 terminals, body size 5 × 5 × 0.85 mm. Pin 1 index area marked per Fig 5; exposed thermal pad (not electrically connected) recommended for PCB thermal relief.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC822M101JHI33E, LPC824M201JHI33 offers scalable memory headroom without layout change, while LPC812M101JDH20 trades pin count, timer flexibility, and ADC channel depth for lower unit cost and simpler packaging - making LPC822M101JHI33E the optimal balance of density, low-power capability, and peripheral richness in HVQFN33 form factor.

Availability

LPC822M101JHI33E is available at Aetrix Electronics and suitable for industrial control panels, portable medical devices, smart sensor nodes, and lighting driver modules requiring stable component supply across long production lifecycles.

Supply support for LPC822M101JHI33E 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 applications, with deep expertise in ARM-based microcontrollers and mixed-signal integration.

The LPC800 series - including LPC822M101JHI33E - was designed for cost-sensitive, low-power embedded control applications demanding flexible I/O, robust analog peripherals, and simplified firmware development through ROM-based drivers.

FAQ

What is the maximum operating frequency of the LPC822M101JHI33E?

The LPC822M101JHI33E operates at a maximum CPU frequency of 30 MHz using its ARM Cortex-M0+ core. This speed is achievable with the internal 12 MHz RC oscillator (trimmed to ±1.5 %), external crystal (1–25 MHz), or PLL-locked system clock. The core's two-stage pipeline and single-cycle I/O ensure deterministic real-time response at this rate.

Does the LPC822M101JHI33E support in-application programming (IAP)?

Yes, the LPC822M101JHI33E supports In-Application Programming via on-chip ROM APIs. These validated routines enable safe flash page erasure and reprogramming while the application runs - essential for field firmware updates. The LPC822M101JHI33E also supports In-System Programming (ISP) via USART0 using the built-in boot loader.

How many ADC input channels does the LPC822M101JHI33E have, and what is its sampling rate?

The LPC822M101JHI33E integrates a 12-bit ADC with up to 12 input channels and supports sample rates of up to 1.2 Msamples/s. It features two independent conversion sequences, allowing concurrent acquisition of different channel groups - ideal for time-aligned sensor fusion in applications like motor control or environmental monitoring.

Can the LPC822M101JHI33E wake up from deep power-down mode using an external signal?

Yes, the LPC822M101JHI33E can wake from deep power-down mode via a LOW-going pulse ≥50 ns on PIO0_4 (labeled WAKEUP in pin description). This pin must be externally pulled HIGH before entering deep power-down. Alternatively, an external clock applied to PIO0_28 (WKTCLKIN) can trigger wake-up - both methods resume full operation within microseconds.

What debug interface does the LPC822M101JHI33E support, and are JTAG pins available?

The LPC822M101JHI33E supports Serial Wire Debug (SWD) by default on SWDIO (PIO0_2) and SWCLK (PIO0_3), enabling programming and real-time debugging with minimal pin count. JTAG signals (TDO, TDI, TCK, TMS, TRST) are only accessible in boundary scan mode and are not intended for standard debug use - SWD is the recommended and fully supported interface for development.