NXP Semiconductors LPC1517JBD48E

Overview

LPC1517JBD48E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller designed for motor control and industrial embedded systems, operating at up to 72 MHz with 64 kB flash, 12 kB SRAM, 4 kB EEPROM, no USB interface, and 32 GPIO pins in LQFP48 package.

For engineers reviewing the LPC1517JBD48E datasheet, LPC1517JBD48E pinout, LPC1517JBD48E application, or LPC1517JBD48E equivalent, key selection criteria include its C_CAN controller, dual 12-bit ADCs (9/7 channels), 12-bit DAC, four analog comparators, and SCTimer/PWM subsystem optimized for real-time motor feedback and power conversion timing.

Technical Context

The LPC1517JBD48E implements an ARM Cortex-M3 core (r2p1) with Harvard architecture, 3-stage pipeline, and integrated NVIC, MPU, and SWD debug interface. It supports deterministic interrupt handling and memory protection for safety-critical firmware.

Its peripheral set centers on real-time control: four State Configurable Timers (SCTimers) with input pre-processing unit, dual ADCs with independent trigger sources and up to 2 Msamples/s aggregate rate, and C_CAN for robust fieldbus communication - all synchronized via three dedicated PLLs (system, USB, SCT).

Key Specifications

Pinout & Package

LQFP48 plastic low-profile quad flat package, 48 leads, body size 7 × 7 × 1.4 mm (SOT313-2). Pin 1 index marked per Fig 2 in datasheet Rev. 1.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1547JBD48 and LPC1517JBD64, the LPC1517JBD48E delivers optimal cost-performance balance for space-constrained, USB-free motor control - retaining full C_CAN, SCTimer, and dual-ADC functionality in the smallest LQFP48 footprint.

Availability

LPC1517JBD48E is available at Aetrix Electronics and suitable for motion drives, solar inverters, and digital power supplies requiring stable component supply across extended industrial temperature ranges and long production lifecycles.

Supply support for LPC1517JBD48E 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.

The LPC15xx product line targets high-precision industrial control applications, emphasizing real-time determinism, analog integration, and low-power operation for motor drives and power conversion systems.

FAQ

What is the maximum operating frequency of the LPC1517JBD48E?

The LPC1517JBD48E operates at a maximum CPU frequency of 72 MHz, achieved via its system PLL driven by either the internal 12 MHz RC oscillator (trimmed to ±1 %) or an external crystal (1–25 MHz). This frequency enables real-time execution of complex motor control algorithms with sub-microsecond interrupt latency.

Does the LPC1517JBD48E include USB functionality?

No, the LPC1517JBD48E does not include a USB interface. Unlike the LPC154x series, it omits the USB 2.0 full-speed device controller and on-chip PHY. Its serial connectivity relies on three USARTs, one Fast-mode Plus I²C, two SPI controllers, and one C_CAN module - optimized for industrial fieldbus and sensor networks.

How many analog-to-digital converter channels does the LPC1517JBD48E support?

The LPC1517JBD48E integrates two independent 12-bit ADCs: ADC0 with up to 9 input channels and ADC1 with up to 7 input channels, as specified for the LQFP48 variant in Table 2 of the datasheet. Each ADC supports multiple trigger sources and two independent conversion sequences for concurrent sampling.

What timer subsystem is used for motor control in the LPC1517JBD48E?

The LPC1517JBD48E uses the State Configurable Timer (SCTimer)/PWM subsystem, comprising four independent SCTimers with up to 28 match outputs, 22 capture inputs, and a dedicated input pre-processor unit (SCTIPU). This architecture enables event-driven, hardware-synchronized PWM generation and fault response for brushless motor commutation.

What is the package type and pin count of the LPC1517JBD48E?

The LPC1517JBD48E is housed in an LQFP48 package - a plastic low-profile quad flat package with 48 leads and body dimensions of 7 mm × 7 mm × 1.4 mm (SOT313-2). It provides 32 GPIO pins, with specific functions assigned per the pin configuration diagram for non-USB variants (Fig 5).