NXP Semiconductors LPC1518JBD100E

Overview

LPC1518JBD100E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller designed for industrial motor control and digital power applications. It operates at up to 72 MHz, integrates 128 kB flash, 20 kB SRAM, and 4 kB EEPROM, and features dual 12-bit ADCs (2 Msamples/s), one 12-bit DAC, four analog comparators, three USARTs, two SPIs, one Fast-mode Plus I²C, C_CAN, RTC with independent power domain, and four State Configurable Timers (SCTimer/PWM) with input pre-processor.

For engineers reviewing the LPC1518JBD100E datasheet, LPC1518JBD100E pinout, LPC1518JBD100E application, or LPC1518JBD100E equivalent, key selection criteria include its LQFP100 package with 78 GPIOs, absence of USB PHY (distinguishing it from LPC154x variants), C_CAN interface for industrial networking, and SCTimer subsystem optimized for real-time motor feedback and PWM generation in high-efficiency power conversion systems.

Technical Context

The LPC1518JBD100E implements an ARM Cortex-M3 core (r2p1) with Harvard architecture, 3-stage pipeline, and integrated NVIC, MPU, and SWD debug interface. Its clock system includes a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), watchdog oscillator (503 kHz), and three PLLs - one for CPU, one for USB (not used here), and one dedicated to SCTimer/PWM timing.

Peripheral interconnect uses a multi-layer AHB matrix with APB bridges, switch matrix (SWM) for flexible pin assignment, input multiplexer for SCTimer/ADC triggers, and SCT Input Pre-processor Unit (SCTIPU) for deterministic handling of analog comparator and ADC threshold events - enabling tightly coupled sensor-to-PWM response critical for closed-loop motor and power supply control.

Key Specifications

Pinout & Package

LQFP100 plastic low-profile quad flat package (SOT407-1), 100 leads, body size 14 mm × 14 mm × 1.4 mm, exposed pad not specified, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC1548JBD100, LPC1518JBD100 removes USB PHY to reduce RF emissions and simplify layout; compared with LPC1769FBD100, it delivers superior analog integration and deterministic timing for real-time power electronics - making it the optimal choice for cost-sensitive, high-reliability motor and digital power applications.

Availability

LPC1518JBD100E is available at Aetrix Electronics and suitable for motor control, solar inverters, and industrial automation requiring stable component supply across extended product lifecycles.

Supply support for LPC1518JBD100E 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 was engineered specifically for high-performance, low-power industrial control - emphasizing integrated analog peripherals, deterministic real-time timers, and robust communication interfaces for motor drives, digital power supplies, and factory automation systems.

FAQ

What is the maximum operating frequency of the LPC1518JBD100E?

The LPC1518JBD100E operates at a maximum CPU frequency of 72 MHz, achieved via its system PLL driven by either the internal 12 MHz RC oscillator (±1 % accuracy) or an external crystal (1–25 MHz). This frequency is fully supported across the −40 °C to +105 °C industrial temperature range and enables deterministic execution of complex motor control algorithms and real-time power regulation loops.

Does the LPC1518JBD100E include USB functionality?

No, the LPC1518JBD100E does not include a USB 2.0 full-speed device controller or on-chip PHY. This distinguishes it from the LPC154x series (e.g., LPC1548JBD100). The absence of USB reduces electromagnetic interference and simplifies PCB layout - making LPC1518JBD100E ideal for noise-sensitive motor control and power conversion applications where USB is unnecessary.

How many analog-to-digital converters does the LPC1518JBD100E integrate?

The LPC1518JBD100E integrates two independent 12-bit analog-to-digital converters (ADC0 and ADC1), each supporting up to 12 input channels and sample rates of up to 2 Msamples/s. Both ADCs feature multiple internal and external trigger sources, two independent conversion sequences, and asynchronous clocking options - enabling synchronized current and voltage sampling in three-phase inverter topologies.

What timer resources are available for motor control on the LPC1518JBD100E?

The LPC1518JBD100E provides four State Configurable Timers (SCTimer/PWM modules), each with match/capture capability, input pre-processing, and dither engine. These timers support up to 28 PWM outputs and 22 capture inputs, and can be configured as 32-bit counters or combinations of 16-bit timers - delivering hardware-accelerated, event-driven timing essential for field-oriented control, space-vector modulation, and fault-responsive shutdown in motor drives.

Is the LPC1518JBD100E pin-compatible with other LPC15xx devices in LQFP100 package?

Yes, the LPC1518JBD100E shares the same LQFP100 (SOT407-1) package and pinout with other LPC15xx variants in that footprint, including LPC1548JBD100 and LPC1519JBD100. Pin assignments for GPIO, ADC, SCTimer, UART, I²C, CAN, and power terminals are identical - enabling hardware reuse across designs differentiated by flash size, USB inclusion, or peripheral enablement.