NXP Semiconductors LPC1752FBD80K

Overview

LPC1752FBD80K from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 100 MHz, featuring 64 kB flash, 16 kB SRAM, one CAN 2.0B channel, USB Device-only interface, and 52 GPIO pins - deployed in industrial control and metering systems requiring deterministic real-time response and compact footprint.

For engineers reviewing the LPC1752FBD80K datasheet, LPC1752FBD80K pinout, LPC1752FBD80K application, or LPC1752FBD80K equivalent, key selection criteria include its USB Device-only capability, single-CAN support, absence of Ethernet/I2S/DAC, and LQFP80 package compatibility with legacy LPC17xx designs.

Technical Context

The LPC1752FBD80K implements the ARM Cortex-M3 core with 3-stage pipeline, Harvard architecture, and integrated NVIC for low-latency interrupt handling. It uses a multilayer AHB matrix interconnect enabling concurrent CPU, DMA, and peripheral access without arbitration stalls.

Its peripheral set includes four UARTs (one with IrDA, one with RS-485 support), two I²C-bus interfaces (400 kbit/s fast mode), two SSP controllers, 12-bit ADC (6-channel, 200 kHz sampling), RTC with battery backup, and six-output general-purpose PWM - all accessible via APB/AHB bridges with independent clock dividers for dynamic power scaling.

Key Specifications

Pinout & Package

Package: LQFP80 (plastic low-profile quad flat package, 12 mm × 12 mm × 1.4 mm, 80 leads).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1752FBD80K, LPC1754FBD80 offers double flash and dual-CAN but shares identical pinout and peripheral subset; LPC1768FBD100 adds Ethernet and larger memory but requires PCB redesign due to 100-pin LQFP and different power sequencing.

Availability

LPC1752FBD80K is available at Aetrix Electronics and suitable for industrial motor control, eMetering, and smart lighting applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for LPC1752FBD80K 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 markets, with deep expertise in ARM-based microcontrollers and mixed-signal integration.

The LPC17xx family targets cost-sensitive, real-time embedded applications demanding rich peripheral sets, low power, and seamless toolchain support - designed specifically for industrial control, metering, and human-machine interface systems.

FAQ

Does LPC1752FBD80K support USB Host or OTG functionality?

No, LPC1752FBD80K integrates USB 2.0 Full-Speed Device-only controller. It cannot act as a USB host or support OTG switching. This is confirmed in Table 2 of the datasheet, which explicitly lists "Device only" under USB column for LPC1752FBD80. For host/OTG capability, consider LPC1754FBD80 or LPC1756FBD80.

What is the maximum operating frequency of LPC1752FBD80K?

LPC1752FBD80K operates at a maximum CPU frequency of 100 MHz, as specified in Table 2 and Section 2 Features. This is lower than the 120 MHz of LPC1759 but matches LPC1754/56/58. The PLL allows stable operation from internal RC or crystal sources without requiring high-frequency crystals.

How many CAN interfaces does LPC1752FBD80K include?

LPC1752FBD80K includes one CAN 2.0B controller, as stated in Table 2 (CAN column = "1") and Section 2 ("CAN 2.0B controller with … one (LPC1754/52/51) channels"). It supports standard and extended frame formats with programmable bit timing and message filtering.

Is DAC functionality available on LPC1752FBD80K?

No, LPC1752FBD80K does not include a DAC. Table 2 shows "no" under DAC column, and Section 2 confirms DAC is present only on LPC1759/58/56/54. LPC1752FBD80K retains the 12-bit ADC and 6-output PWM for analog output emulation where needed.

What package type is used for LPC1752FBD80K?

LPC1752FBD80K uses an 80-pin LQFP package (12 mm × 12 mm × 1.4 mm), per Table 1 and Section 2. This is pin-compatible with other LPC175x variants in LQFP80, enabling drop-in replacement within the same family where peripheral usage aligns.