NXP Semiconductors LPC11U67JBD48E

Overview

LPC11U67JBD48E from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller operating at up to 50 MHz, featuring 128 KB flash, 20 KB SRAM, and 4 KB EEPROM. It integrates USB 2.0 full-speed device controller with on-chip PHY, dual I²C interfaces (one supporting Fast-mode Plus), and a 12-bit ADC with up to 8 input channels - deployed in GPS trackers and medical monitors requiring compact, low-power embedded control.

For engineers reviewing the LPC11U67JBD48E datasheet, LPC11U67JBD48E pinout, LPC11U67JBD48E application, or LPC11U67JBD48E equivalent, key selection criteria include its LQFP48 package with 34 GPIOs, XTAL-less USB operation, RTC with VBAT backup, and support for deep power-down wake-up via PIO0_16 - critical for battery-powered edge nodes.

Technical Context

The LPC11U67JBD48E implements an ARM Cortex-M0+ core with NVIC, Micro Trace Buffer (MTB), and Serial Wire Debug (SWD) interface, enabling deterministic real-time interrupt handling and low-overhead code tracing. Its AHB multilayer matrix decouples CPU, DMA, and peripheral bus access to sustain throughput across concurrent USB, USART, and ADC operations.

Peripheral subsystems are functionally partitioned: the SCTimer/PWM block provides state-configurable timing with up to 19 PWM outputs and 6 independent time bases; the dual SSP controllers and five USARTs (three active in LQFP48) support synchronous serial expansion; and the dedicated USB PLL ensures full-speed compliance without external crystal dependency.

Key Specifications

Pinout & Package

LQFP48 package: plastic low-profile quad flat package, 7 × 7 × 1.4 mm body, 0.5 mm pitch, 48 leads - compatible with standard reflow profiles and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC11U68JBD48, the LPC11U67JBD48 trades flash/SRAM capacity for identical USB integration and power efficiency; versus LPC11U37FBD48, it adds USB-native connectivity and advanced timing - making it optimal for compact, USB-connected edge devices needing balanced memory and peripheral density.

Availability

LPC11U67JBD48E is available at Aetrix Electronics and suitable for GPS trackers, medical monitors, car radio UI controllers, and three-phase e-meters requiring stable component supply and long-term industrial availability.

Supply support for LPC11U67JBD48E 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC11U6x product line was designed for cost-sensitive, USB-enabled embedded applications demanding low power, rich analog/digital peripheral integration, and robust firmware update capabilities - targeting portable instrumentation and smart energy devices.

FAQ

What USB speed and modes does the LPC11U67JBD48E support?

The LPC11U67JBD48E supports USB 2.0 full-speed (12 Mbps) device operation with integrated PHY. It also implements XTAL-less low-speed mode, eliminating the need for a 48 MHz crystal. The ROM-based USB stack supports HID, CDC, and MSC classes out-of-box, and the dedicated USB PLL ensures timing compliance independent of system clock configuration. This makes LPC11U67JBD48E ideal for plug-and-play peripherals without external clock components.

How many ADC channels are accessible in the LQFP48 package of the LPC11U67JBD48E?

The LPC11U67JBD48E in LQFP48 package provides 8 accessible channels of its 12-bit ADC, as confirmed in Table 2 of the datasheet. These include ADC_0 through ADC_7, with inputs mapped to PIO1_9, PIO1_3, PIO0_11, PIO0_12, PIO0_13, PIO0_14, PIO0_22, and PIO0_23. Channel selection, sampling rate (up to 2 Msamples/s), and dual-sequence conversion are fully software-configurable via the ADC control registers in LPC11U67JBD48E.

Does the LPC11U67JBD48E support deep power-down mode with wake-up capability?

Yes, the LPC11U67JBD48E supports Deep power-down mode with wake-up via PIO0_16 (pin 38), external pin interrupts, or USART activity. In this mode, current drops below 1 µA while retaining RTC operation when VBAT is supplied. A 50 ns LOW pulse on PIO0_16 exits Deep power-down, and the device resumes execution from the reset vector. This capability is validated in Section 2.7 ("Power control") and pin description Table 3 of the LPC11U67JBD48E datasheet.

What debug interfaces are available on the LPC11U67JBD48E?

The LPC11U67JBD48E supports Serial Wire Debug (SWD) as the primary debug interface, enabled by default on SWDIO (pin 37) and SWCLK (pin 28). JTAG boundary scan is also supported using TRST (pin 33), TMS (pin 31), TDI (pin 30), and TDO (pin 32), selectable via the RESET pin level at power-on. Both interfaces provide full read/write memory access, breakpoint setting, and real-time trace via the Micro Trace Buffer (MTB), as documented in Section 2.2 of the LPC11U67JBD48E product data sheet.

Is the LPC11U67JBD48E pin-compatible with other members of the LPC11U6x family in LQFP48?

Yes, the LPC11U67JBD48E is pin-compatible with LPC11U66JBD48 and LPC11U68JBD48 in the LQFP48 package, sharing identical pin functions, electrical characteristics, and footprint. Differences are limited to flash (64/128/256 KB), SRAM (12/20/36 KB), and peripheral enablement - all managed in software. This allows hardware reuse across variants, with LPC11U67JBD48E serving as the mid-tier option balancing memory, USB, and timer resources for scalable designs.