NXP Semiconductors LPC824M201JHI33K

Overview

LPC824M201JHI33K from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller operating at up to 30 MHz, featuring 32 KB flash, 8 KB SRAM, a 12-bit ADC with 12 input channels, and 29 GPIO pins. It integrates SCTimer/PWM, four I²C interfaces (one Fast-mode Plus), three USARTs, two SPI controllers, and operates across –40 °C to +105 °C for industrial sensor gateways and motor control.

For engineers reviewing the LPC824M201JHI33K datasheet, LPC824M201JHI33K pinout, LPC824M201JHI33K application, or LPC824M201JHI33K equivalent, this page delivers verified technical context, validated pin functions for HVQFN33, real-world use cases in portable wearables and fire/security systems, and two confirmed alternative parts with functional trade-offs.

Technical Context

The LPC824M201JHI33K implements an ARM Cortex-M0+ core (r0p1) with single-cycle I/O and NVIC, paired with an AHB multilayer matrix and Serial Wire Debug (SWD) interface. Its memory subsystem includes 32 KB flash (64-byte page erase) and 8 KB SRAM split into two blocks, both clocked from a shared source.

Peripherals are routed via a programmable switch matrix enabling dynamic assignment of USART, SPI, I²C, SCTimer, and ADC triggers to any non-power GPIO. The SCTimer/PWM supports capture/match operations with multiplexed inputs from pins, ADC interrupts, or comparator outputs - critical for precise timing in motor control loops.

Key Specifications

Pinout & Package

HVQFN33 package: plastic thermal-enhanced very thin quad flat package, 5 mm × 5 mm × 0.85 mm body, 33 terminals including 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 LPC824M201JHI33K, LPC822M101JHI33 offers identical peripherals in the same HVQFN33 footprint but halves memory capacity, while LPC845BDM33 adds USB and higher-resolution ADC at the cost of larger size and non-pin-compatible layout - making LPC824M201JHI33K optimal for memory-constrained yet feature-rich industrial edge nodes.

Availability

LPC824M201JHI33K is available at Aetrix Electronics and suitable for industrial motor control, fire and security systems, and portable wearables requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC824M201JHI33K 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 markets, with deep expertise in ARM-based microcontrollers and mixed-signal integration.

The LPC82x product line was designed for cost-sensitive, low-power embedded applications demanding rich peripheral flexibility - especially where switch-matrix I/O routing and ultra-low-power wake-up capability are essential.

FAQ

What is the maximum operating frequency of the LPC824M201JHI33K?

The LPC824M201JHI33K features an ARM Cortex-M0+ core rated for up to 30 MHz operation. This frequency is achievable using the internal 12 MHz RC oscillator with PLL multiplication, an external crystal (1–25 MHz), or an external clock source. The core's single-cycle multiplier and fast I/O port ensure deterministic timing at full speed, and the datasheet confirms sustained 30 MHz operation across the full –40 °C to +105 °C temperature range.

Does the LPC824M201JHI33K support in-application programming (IAP)?

Yes, the LPC824M201JHI33K supports In-Application Programming via its on-chip ROM API, enabling firmware updates without external programming hardware. The ROM includes validated IAP routines for flash page erase and program operations, and these functions are accessible through defined vector calls. This capability is documented in Section 8.4 of the official NXP LPC82x datasheet and is fully supported in the LPC824M201JHI33K variant.

How many ADC channels does the LPC824M201JHI33K have, and what is its sampling rate?

The LPC824M201JHI33K integrates a single 12-bit ADC with up to 12 input channels (ADC_0 through ADC_11), as confirmed in Table 2 of the datasheet. Its maximum sample rate is 1.2 Msamples/s, supporting two independent conversion sequences triggered by software, timers, or external pins. This performance is validated for the LPC824M201JHI33K in the "Analog peripherals" section of the product data sheet.

Can the LPC824M201JHI33K wake up from Deep power-down mode using an external pin?

Yes, the LPC824M201JHI33K can wake from Deep power-down mode via PIO0_4 (labeled WAKEUP in the pin description). A LOW-going pulse as short as 50 ns on this pin exits Deep power-down and initiates boot sequence. The pin must be pulled HIGH externally before entering Deep power-down, and no movable function (e.g., USART or SPI) may be assigned to it if wake-up functionality is required - a constraint explicitly stated in Table 3 of the datasheet.

What debug interface does the LPC824M201JHI33K support, and which pins are used?

The LPC824M201JHI33K supports Serial Wire Debug (SWD) using SWDIO (PIO0_2) and SWCLK (PIO0_3) - both enabled by default at reset. It also supports JTAG boundary scan (BSDL) with TDO (PIO0_0), TDI (PIO0_1), TCK (PIO0_3), TMS (PIO0_2), and TRST (PIO0_4), though JTAG is active only in boundary scan mode. SWD is the primary debug interface recommended for development, and all five debug signals are physically present on the HVQFN33 package.