NXP Semiconductors LPC822M101JHI33K

Overview

LPC822M101JHI33K 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 29 GPIO pins in a 5×5 mm HVQFN33 package - deployed in sensor gateways, portable devices, and industrial control systems.

For engineers reviewing the LPC822M101JHI33K datasheet, LPC822M101JHI33K pinout, LPC822M101JHI33K application, or LPC822M101JHI33K equivalent, key selection considerations include its switch-matrix–configured I/O flexibility, self-wake-up timer support for deep power-down wake-up via PIO0_4, I2C Fast-mode Plus capability on dedicated pins, and ROM-based APIs for ADC, SPI, and USART firmware acceleration.

Technical Context

The LPC822M101JHI33K integrates an ARM Cortex-M0+ core (r0p1) with single-cycle I/O and NVIC, coupled to a programmable switch matrix enabling dynamic assignment of USART, SPI, I2C, SCTimer/PWM, and ADC trigger functions to any non-power GPIO pin. Its peripheral set includes a 12-bit ADC (1.2 Msamples/s), dual I2C interfaces supporting Fast-mode Plus (1 Mbit/s), and a state-configurable timer (SCTimer/PWM) with multiplexed inputs from pins, ADC interrupts, or comparator outputs.

Power management features include four low-power modes (Sleep, Deep-sleep, Power-down, Deep power-down), wake-up from Deep power-down via PIO0_4 or external clock on PIO0_28, and integrated PMU with 90 µA/MHz active-mode current using the 12 MHz IRC oscillator. Clock generation supports PLL, crystal (1–25 MHz), and watchdog oscillator (9.4 kHz–2.3 MHz) 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, with exposed thermal pad (pin 33 = VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC822M101JHI33K, LPC824M201JHI33 offers scalable memory within identical footprint and feature set, while STM32G031F8P6 trades I/O flexibility and SCTimer for higher clock rate and larger memory - making LPC822M101JHI33K optimal for compact, analog-rich, low-power designs demanding routing agility.

Availability

LPC822M101JHI33K is available at Aetrix Electronics and suitable for sensor gateways, portable wearables, and industrial control panels requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature and voltage ranges.

Supply support for LPC822M101JHI33K 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with expertise in ARM-based microcontrollers and edge processing.

The LPC82x product line delivers cost-optimized, low-power 32-bit MCUs targeting resource-constrained embedded systems requiring analog integration, flexible I/O, and ultra-low-power operation - especially where legacy 8/16-bit migration or sensor-edge intelligence is needed.

FAQ

What is the maximum operating frequency of the LPC822M101JHI33K?

The LPC822M101JHI33K 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 LPC822M101JHI33K's clock generation system without requiring external high-frequency components.

Does the LPC822M101JHI33K support I2C Fast-mode Plus?

Yes, the LPC822M101JHI33K supports I2C Fast-mode Plus (1 Mbit/s) on dedicated pins PIO0_10 (I2C0_SCL) and PIO0_11 (I2C0_SDA), which are true open-drain with high-current sink capability when configured in Fast-mode Plus mode via the I/O configuration register.

How many ADC input channels does the LPC822M101JHI33K have?

The LPC822M101JHI33K includes a 12-bit ADC with up to 12 input channels (ADC_0 through ADC_11), as confirmed in Table 2 of the datasheet. All 12 channels are accessible in the HVQFN33 package variant, including ADC_0 to ADC_11 mapped to specific PIO0 pins.

Can the LPC822M101JHI33K wake up from Deep power-down mode?

Yes, the LPC822M101JHI33K can wake up from Deep power-down mode via two hardware sources: a LOW-going pulse ≥50 ns on PIO0_4 (WAKEUP), or an external clock signal applied to PIO0_28 (WKTCLKIN). Both paths remain active in Deep power-down, enabling reliable low-power sensor node operation.

What debug interface does the LPC822M101JHI33K support?

The LPC822M101JHI33K supports Serial Wire Debug (SWD) using pins PIO0_2 (SWDIO) and PIO0_3 (SWCLK) as the primary debug interface, with four breakpoints and two watchpoints. JTAG boundary scan (BSDL) is also supported but only in boundary scan mode, not during normal operation.