NXP Semiconductors LPC4072FBD80E

Overview

LPC4072FBD80E from NXP Semiconductors is a 32-bit ARM Cortex-M4 microcontroller designed for low-power embedded control applications, featuring 64 kB flash, 24 kB SRAM, 2048 B EEPROM, dual CAN interfaces, two UARTs, and 80-pin LQFP packaging. It operates up to 120 MHz with hardware floating-point unit (FPU) disabled, integrated RTC with battery backup, and supports industrial motor control and communication gateways.

For engineers reviewing the LPC4072FBD80E datasheet, LPC4072FBD80E pinout, LPC4072FBD80E application, or LPC4072FBD80E equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative parts for design-in and supply continuity planning.

Technical Context

The LPC4072FBD80E implements an ARM Cortex-M4 core with Harvard architecture, 3-stage pipeline, and integrated Memory Protection Unit (MPU) supporting eight memory regions. It uses a multilayer AHB matrix interconnect for concurrent CPU and DMA access without arbitration delay unless accessing the same slave simultaneously.

Its peripheral set includes a 12-bit ADC with eight inputs and 400 kHz sampling, a 10-bit DAC with dedicated timer, two analog comparators, and a Quadrature Encoder Interface (QEI). The device lacks Ethernet, LCD, EMC, and SD/MMC controllers - confirmed by Table 2 ordering options - and supports only USB Device mode (not Host/OTG).

Key Specifications

Pinout & Package

LPC4072FBD80E is housed in an 80-lead LQFP package (SOT315-1), body size 12 × 12 × 1.4 mm, with exposed pad for thermal dissipation. All I/O pins are 5 V tolerant except when configured as ADC inputs. Power and crystal pins are not 5 V tolerant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1769FBD100 and LPC4337JET100, the LPC4072FBD80E offers optimal balance of CAN-centric control, low pin count, and integrated analog peripherals - making it ideal for cost-sensitive, space-constrained industrial and automotive modules where USB Host or Ethernet are unnecessary.

Availability

LPC4072FBD80E is available at Aetrix Electronics and suitable for industrial motor control, automotive aftermarket gateways, medical sensor interfaces, and smart building hubs requiring stable component supply across extended product lifecycles.

Supply support for LPC4072FBD80E 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, IoT, and mobile applications.

The LPC4000 series targets high-integration embedded control with ARM Cortex-M4 cores, emphasizing real-time determinism, analog integration, and industrial protocol support - specifically engineered for motor control, CAN networking, and low-power sensor aggregation.

FAQ

Does LPC4072FBD80E include a hardware floating-point unit (FPU)?

No, the LPC4072FBD80E does not include an FPU. Per Table 2 of the official datasheet, FPU is marked "no" for all LPC4072 variants. This distinguishes it from higher-tier LPC408x parts that list "yes". Software-based floating-point operations remain fully supported via CMSIS-DSP libraries, but real-time deterministic math must account for latency without hardware acceleration. The LPC4072FBD80E retains full ARM Cortex-M4 instruction set compatibility excluding FPU instructions.

What is the maximum operating frequency of LPC4072FBD80E?

The LPC4072FBD80E operates at up to 120 MHz CPU frequency, enabled by its on-chip PLL driven from either the main oscillator (1–25 MHz crystal) or the internal 12 MHz RC oscillator. This maximum is confirmed in Section 1 (General description) and Section 2 (Features and benefits) of the datasheet. System performance is further enhanced by the flash accelerator and local instruction/data buses, enabling near-zero wait-state execution from flash memory.

Which communication interfaces are supported on LPC4072FBD80E?

The LPC4072FBD80E supports USB Device mode only (not Host or OTG), two CAN 2.0B controllers, five UARTs (though only two are accessible in LQFP80 package per pin mapping), three I²C-bus interfaces, two SSP controllers, and one I²S interface. Ethernet, LCD, EMC, and SD/MMC are explicitly excluded for this variant, as verified in Table 2 "Ordering options". UART1 includes full modem control, and USART4 supports IrDA and ISO7816-3 smart card mode.

How many GPIO pins are available on LPC4072FBD80E?

The LPC4072FBD80E provides up to 64 general-purpose I/O pins in its LQFP80 package. While the LPC408x/7x family supports up to 165 GPIOs across larger packages, Table 2 confirms reduced I/O count for smaller variants. Pin multiplexing allows each GPIO to serve multiple peripheral functions (e.g., UART, I²C, SSP), managed via the IOCON register. All GPIOs reside on the AHB bus for fast access and support Cortex-M4 bit-banding for atomic read-modify-write operations.

Is LPC4072FBD80E pin-compatible with other NXP microcontrollers?

Yes, the LPC4072FBD80E shares pin function compatibility with the LPC177x/178x and LPC23xx/24xx families, as stated in Section 1 of the datasheet. This enables migration paths for legacy designs. However, exact pin-to-pin equivalence requires verification against specific package variants (e.g., LQFP80 vs LQFP100), as peripheral availability (e.g., CAN, UART count) and pin assignments differ across sub-families. Always consult the LPC4072FBD80E-specific pin description table (Table 3) for definitive signal mapping.