NXP Semiconductors LPC11U67JBD64E

Overview

LPC11U67JBD64E from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller operating at up to 50 MHz, featuring 128 KB flash, 4 KB EEPROM, 20 KB SRAM, one 12-bit ADC with 10 input channels, and full-speed USB 2.0 device controller with on-chip PHY - deployed in GPS trackers and medical monitors requiring low-power, mixed-signal control.

For engineers reviewing the LPC11U67JBD64E datasheet, LPC11U67JBD64E pinout, LPC11U67JBD64E application, or LPC11U67JBD64E equivalent, key selection considerations include its LQFP64 package with 48 GPIOs, dual I²C (one Fast-mode Plus), five USARTs (four with shared fractional baud generator), and dedicated USB PLL enabling crystal-less low-speed USB operation.

Technical Context

The LPC11U67JBD64E implements an ARM Cortex-M0+ core (r0p1) with two-stage pipeline, single-cycle I/O, and integrated NVIC for deterministic interrupt handling. Its AHB multilayer matrix enables concurrent peripheral access without bus contention.

Peripheral architecture includes a configurable PWM/timer subsystem (SCTimer/PWM + four standard timers), CRC engine, DMA with 16 channels, and ROM-based drivers for USB, USART, I²C, and ISP - all supported by a unified power management unit enabling Sleep, Deep-sleep, Power-down, and Deep power-down modes with wake-up via GPIO or USART activity.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 × 1.4 mm, SOT314-2), 64-pin quad flat lead frame with exposed pad; 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 LPC11U67JBD64E, LPC11U68JBD64 offers scalable memory without layout changes, while LPC1343FBD48 trades USB and EEPROM for raw M3 performance in space-constrained designs - making LPC11U67JBD64E optimal for balanced USB-enabled embedded control.

Availability

LPC11U67JBD64E 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, long-term lifecycle assurance, and industrial temperature grade support.

Supply support for LPC11U67JBD64E 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.

The LPC11U6x product line targets cost-sensitive, low-power embedded systems requiring USB device capability, rich analog integration, and robust firmware update mechanisms - optimized for smart sensors, portable medical devices, and industrial HMI.

FAQ

What is the maximum operating frequency of the LPC11U67JBD64E?

The LPC11U67JBD64E operates at a maximum CPU frequency of 50 MHz using its ARM Cortex-M0+ core. This speed is achieved via the system PLL, which can be driven by the internal 12 MHz IRC oscillator (trimmed to ±1 % accuracy) or an external crystal between 1 MHz and 25 MHz. The LPC11U67JBD64E maintains full peripheral functionality at this rate, including USB full-speed operation enabled by its dedicated USB PLL.

Does the LPC11U67JBD64E support crystal-less USB operation?

Yes, the LPC11U67JBD64E supports XTAL-less low-speed USB mode using its internal oscillator, eliminating the need for an external 12 MHz crystal in basic USB device configurations. However, full-speed USB 2.0 operation requires either the external crystal or the internal IRC oscillator - the dedicated USB PLL ensures stable timing regardless of source. This capability is confirmed in the official NXP LPC11U6x datasheet Rev. 1.5.

How many ADC input channels does the LPC11U67JBD64E provide?

The LPC11U67JBD64E integrates a single 12-bit successive-approximation ADC with up to 10 configurable input channels (ADC_0 through ADC_11, excluding reserved channels). These channels support multiple trigger sources including timers and software, and enable two independent conversion sequences. The ADC achieves sample rates up to 2 Msamples/s - a specification explicitly documented for the LPC11U67JBD64 variant in Table 2 of the NXP datasheet.

What debug interfaces are supported by the LPC11U67JBD64E?

The LPC11U67JBD64E supports Serial Wire Debug (SWD) as the primary debug interface, accessible via pins SWDIO (PIO0_15) and SWCLK (PIO0_10), with optional JTAG boundary scan mode using TRST, TDI, TMS, and TDO pins. SWD is enabled by default and requires only two pins, reducing debug footprint. The part also includes a Micro Trace Buffer (MTB) for instruction trace - all features verified in Section 2 "Features and benefits" of the NXP LPC11U6x datasheet.

Is the LPC11U67JBD64E pin-compatible with other members of the LPC11U6x family?

Yes, the LPC11U67JBD64E is pin-compatible with other LQFP64 variants in the LPC11U6x family, including LPC11U67JBD64 (no suffix) and LPC11U68JBD64. All share identical pin numbering, electrical characteristics, and function mapping per the LQFP64 pinning diagram (Figure 5) and Table 3 "Pin description" in the NXP datasheet. The 'E' suffix denotes enhanced qualification - no functional or mechanical differences affect compatibility.