NXP Semiconductors LPC55S14JBD100E

Overview

LPC55S14JBD100 from NXP Semiconductors is an Arm Cortex-M33 microcontroller with TrustZone security, 128 KB flash, 80 KB SRAM, PRINCE real-time flash encryption, CASPER crypto co-processor, and dual-mode USB (FS + HS), deployed in industrial control nodes requiring secure firmware updates and CAN FD communication.

For engineers reviewing the LPC55S14JBD100 datasheet, LPC55S14JBD100 pinout, LPC55S14JBD100 application, or LPC55S14JBD100 equivalent, key selection criteria include TrustZone-enabled secure boot, 150 MHz CPU operation, 2.0 Msamples/sec 16-bit ADC with simultaneous conversion, CAN FD interface timing compliance, and HLQFP100 package thermal performance in extended temperature environments.

Technical Context

The LPC55S14JBD100 implements Arm v8-M architecture with TrustZone isolation, FPU, MPU, and NVIC, enabling secure partitioning of trusted and non-trusted code execution domains. Its CASPER co-processor accelerates ECC operations, while PRINCE performs on-the-fly AES-256 encryption/decryption of flash reads and writes.

It integrates nine Flexcomm interfaces-each configurable as USART, SPI, I2C, or I2S-with dedicated DMA support, plus a dedicated CAN FD controller with DMA, SCTimer/PWM with 16 capture/match registers, and a 24-bit MRT timer for deterministic interrupt scheduling across low-power modes.

Key Specifications

Pinout & Package

HLQFP100 package features 100 leads in 0.5 mm pitch, 14 × 14 mm body, and exposed thermal pad for enhanced heat dissipation in continuous industrial operation. Pin functions are software-configurable via IOCON registers, with default GPIO assignment except for dedicated debug pins (PIO0_11–PIO0_12).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Arm Cortex-M33 microcontroller applications.

Compared with LPC55S14JBD100, the LPC55S16JBD100 provides scalable memory for larger firmware without sacrificing security or peripheral capability, while the LPC55S06JBD100 trades critical security and CAN FD features for lower cost in less demanding use cases.

Availability

LPC55S14JBD100 is available at Aetrix Electronics and suitable for industrial motor control, secure IoT edge gateways, automotive body control modules, and medical diagnostic instruments requiring stable component supply across multi-year production cycles.

Supply support for LPC55S14JBD100 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 hardware security IP.

The LPC55S1x series targets secure embedded applications demanding TrustZone isolation, cryptographic acceleration, and robust real-time performance - designed specifically for industrial control, automotive subsystems, and certified medical devices.

FAQ

What is the maximum operating frequency of the LPC55S14JBD100?

The LPC55S14JBD100 operates at up to 150 MHz using its Arm Cortex-M33 core. This frequency is achievable with PLL0 or PLL1 clock sources derived from the internal 12 MHz FRO, external crystal (12–32 MHz), or 32.768 kHz RTC oscillator. The FRO is factory-trimmed to ±1% accuracy from 0 °C to 85 °C for stable high-speed execution.

Does the LPC55S14JBD100 support secure boot with public-key cryptography?

Yes, the LPC55S14JBD100 supports secure boot using RSASSA-PKCS1-v1_5 signatures of SHA256 digests, with RSA-2048 and RSA-4096 public key verification. It stores up to four revocable Root of Trust keys in protected flash and enforces anti-rollback via image key certificate revocation - all implemented in ROM bootloader without software dependency.

How many Flexcomm interfaces does the LPC55S14JBD100 provide, and what protocols do they support?

The LPC55S14JBD100 integrates nine Flexcomm interfaces (Flexcomm 0–8). Each supports USART, SPI, I2C, or I2S via software configuration. Flexcomm 8 is dedicated to high-speed SPI. All include FIFOs and flexible clocking, with Flexcomm 0–5 supporting one I2S channel pair and Flexcomm 6–7 supporting four channel pairs each.

What analog capabilities does the LPC55S14JBD100 offer for precision sensing?

The LPC55S14JBD100 includes a 16-bit ADC with 2.0 Msamples/sec sampling rate, five differential input pairs (10 single-ended channels), simultaneous dual-channel conversion, internal temperature sensor, and a five-input analog comparator with selectable reference. These features enable high-fidelity current, voltage, and environmental sensing in motor control and medical applications.

Is the LPC55S14JBD100 pin-compatible with other LPC55S1x family members in the HLQFP100 package?

Yes, the LPC55S14JBD100 shares identical pinout, package dimensions (14 × 14 × 0.5 mm), and thermal pad layout with other HLQFP100 variants including LPC55S16JBD100 and LPC5514JBD100. This allows direct PCB-level substitution where memory or feature differences are acceptable within the design constraints.