NXP Semiconductors LPC11U36FBD64/40EL

Overview

LPC11U36FBD64/40EL from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller operating at up to 50 MHz, featuring 96 kB flash, 4 kB EEPROM, 10 kB SRAM, USB 2.0 full-speed device controller, and USART with RS-485/smart card support - deployed in industrial control and handheld scanners requiring embedded USB connectivity and low-power operation.

For engineers reviewing the LPC11U36FBD64/40EL datasheet, LPC11U36FBD64/40EL pinout, LPC11U36FBD64/40EL application, or LPC11U36FBD64/40EL equivalent, key selection criteria include LQFP64 package compatibility, USB device stack readiness, 10-bit ADC channel count, GPIO count (54 pins), and EEPROM byte-programmability for field firmware updates.

Technical Context

The LPC11U36FBD64/40EL integrates a dedicated USB PLL for stable 48 MHz USB clock generation independent of the main system oscillator, and uses an ARM Cortex-M0 core with NVIC and NMI support for deterministic real-time interrupt handling. Its memory subsystem includes 96 kB flash with sector/page erase, 4 kB EEPROM with on-chip API, and 10 kB SRAM split across SRAM0 and USB SRAM banks.

Peripheral architecture features two SSP controllers with FIFOs, one Fast-mode Plus I²C-bus interface (1 Mbit/s), a 10-bit 8-channel ADC, four general-purpose timers (including 32-bit and 16-bit variants), and programmable windowed watchdog timer with internal low-power oscillator - all accessible via APB bus with configurable GPIO multiplexing.

Key Specifications

Pinout & Package

LQFP64 package: plastic low-profile quad flat package, 64 leads, body size 10 × 10 × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant, thermal pad optional.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC11U37FBD64/401 and LPC11U35FBD64/40EL, the LPC11U36FBD64/40EL offers optimal balance of flash capacity (96 kB), USB-ready memory partitioning, and proven qualification for industrial temperature range (−40 °C to +85 °C), making it ideal for mid-complexity USB-peripheral designs requiring field-upgradable EEPROM storage.

Availability

LPC11U36FBD64/40EL is available at Aetrix Electronics and suitable for industrial control, handheld scanners, and medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant LQFP64 packaging.

Supply support for LPC11U36FBD64/40EL 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC11U3x product line targets cost-sensitive, USB-connected embedded applications - delivering ARM Cortex-M0 performance with integrated USB device functionality, EEPROM, and low-power operation for consumer, medical, and industrial peripherals.

FAQ

What is the maximum CPU frequency supported by the LPC11U36FBD64/40EL?

The LPC11U36FBD64/40EL operates at a maximum CPU frequency of 50 MHz, achieved using either the internal 12 MHz IRC oscillator with PLL multiplication or an external crystal (1–25 MHz) fed into the system oscillator. This frequency is fully supported across the industrial temperature range (−40 °C to +85 °C) and enables real-time execution of USB device stacks and sensor processing tasks without overclocking.

Does the LPC11U36FBD64/40EL include on-chip EEPROM, and what are its key characteristics?

Yes, the LPC11U36FBD64/40EL integrates 4 kB of on-chip EEPROM that is byte-erasable and byte-programmable, with on-chip API support for simplified access. It retains data across power cycles and supports up to 100,000 write/erase cycles - making it suitable for storing calibration values, device identifiers, or user-configurable parameters without requiring external non-volatile memory.

Which USB device classes are supported natively by the LPC11U36FBD64/40EL?

The LPC11U36FBD64/40EL includes ROM-based USB device drivers supporting CDC (Communication Device Class) and HID (Human Interface Device) classes out-of-the-box. These drivers eliminate the need to allocate flash space for USB stack code and ensure compliance with USB-IF specifications - enabling rapid development of virtual COM ports or keyboard/mouse interfaces using standard host OS drivers.

What debug interfaces are available on the LPC11U36FBD64/40EL?

The LPC11U36FBD64/40EL supports both Serial Wire Debug (SWD) and standard JTAG interfaces. SWD is enabled by default via SWCLK and SWDIO pins (PIO0_10 and PIO0_15), while JTAG requires TDI, TDO, TMS, and TRST pins. The RESET pin also serves as debug select: LOW enables JTAG boundary scan, HIGH selects SWD mode - providing flexible, production-ready debug access.

Is the LPC11U36FBD64/40EL pin-compatible with other members of the LPC11U3x family in LQFP64 package?

Yes, the LPC11U36FBD64/40EL shares identical pinout and package (LQFP64, SOT314-2) with LPC11U35FBD64/40EL, LPC11U37FBD64/401, and LPC11U37FBD64/50EL. All LQFP64 variants use the same mechanical footprint and signal mapping - enabling hardware design reuse and firmware migration across flash-size variants without PCB changes.