NXP Semiconductors LPC55S26JBD100E

Overview

LPC55S26JBD100 from NXP Semiconductors is a 32-bit Arm Cortex-M33 microcontroller with CASPER crypto co-processor, 256 KB flash, 144 KB SRAM, PRINCE real-time flash encryption, and dual USB (FS + HS) support. It operates up to 150 MHz and targets secure embedded applications including industrial control, IoT edge nodes, and trusted firmware execution.

For engineers reviewing the LPC55S26JBD100 datasheet, LPC55S26JBD100 pinout, LPC55S26JBD100 application, or LPC55S26JBD100 equivalent, key selection criteria include its HLQFP100 package, secure boot with RSA-2048/4096, PUF-based key generation, 16-bit 1.0 Msamples/sec ADC, and SCTimer/PWM with 10 configurable outputs - all validated for -40 °C to +105 °C operation.

Technical Context

The LPC55S26JBD100 implements an Arm Cortex-M33 core with MPU, FPU, DSP, and ETM, running at up to 150 MHz using PLL0/PLL1 clock sources derived from internal FRO (12 MHz or 1 MHz), external crystal (16–32 MHz), or RTC oscillator (32.768 kHz). Its security architecture integrates PRINCE for on-the-fly flash encryption/decryption, CASPER for ECC acceleration, PUF for silicon fingerprinting, and SHA2/AES engines with dedicated DMA.

Peripheral subsystems include nine Flexcomm interfaces (configurable as USART/SPI/I2C/I2S), SDIO with dual-card support, SCTimer/PWM with 16 capture/match registers and pin-routed I/O, and a 24-bit multi-rate timer (MRT) with four fixed-rate interrupt channels. Power management supports deep power-down with RAM retention and wake-up via RTC, Micro-Tick Timer, or GPIO interrupts.

Key Specifications

Pinout & Package

HLQFP100 package: 100-lead plastic low-profile quad flat package, body size 14 mm × 14 mm × 0.5 mm, 0.5 mm lead pitch, exposed thermal pad (SOT1570-3). Pin 1 index located at top-left corner with marking "LPC55S26JBD100" on first line.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC55S26JBD100, LPC55S28JBD100 offers higher memory capacity without sacrificing security or peripheral functionality, while LPC5526JBD100 removes all hardware security blocks - making it unsuitable for applications requiring certified secure boot or runtime key protection.

Availability

LPC55S26JBD100 is available at Aetrix Electronics and suitable for industrial motor control, secure IoT edge nodes, and medical diagnostic devices requiring stable component supply across long product lifecycles.

Supply support for LPC55S26JBD100 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 over 40 years of microcontroller innovation.

The LPC55S2x series is designed for high-integrity embedded applications demanding hardware-rooted security, real-time performance, and energy efficiency - targeting certified industrial control, medical, and smart infrastructure systems.

FAQ

What is the maximum operating frequency of the LPC55S26JBD100?

The LPC55S26JBD100 features an Arm Cortex-M33 core rated for operation up to 150 MHz. This maximum frequency is achieved using PLL0 or PLL1 clock sources derived from internal FRO (12 MHz), external crystal (16–32 MHz), or RTC oscillator (32.768 kHz). The device maintains this performance across its full industrial temperature range of -40 °C to +105 °C with appropriate power supply regulation and thermal management.

Does the LPC55S26JBD100 support secure boot with public-key cryptography?

Yes, the LPC55S26JBD100 supports secure boot using RSASSA-PKCS1-v1_5 signatures of SHA256 digests, with RSA-2048 and RSA-4096 public key support. It validates images using x509 certificates and stores up to four revocable Root of Trust keys as SHA-256 hashes in protected flash. The LPC55S26JBD100 also supports anti-rollback via image key certificate revocation using the serial number field in x509 certificates.

What analog peripherals are integrated into the LPC55S26JBD100?

The LPC55S26JBD100 integrates a 16-bit ADC with 1.0 Msamples/sec sampling rate, five differential channel pairs (10 single-ended inputs), simultaneous dual-channel conversion capability, and an integrated temperature sensor. It also includes an analog comparator with five input pins and selectable internal/external reference voltage - all accessible through dedicated GPIO pins like PIO0_0/ACMP0_A and PIO0_9/ACMP0_B.

Can the LPC55S26JBD100 operate USB full-speed device mode without an external crystal?

Yes, the LPC55S26JBD100 supports crystal-less USB 2.0 full-speed device operation using its internal Free Running Oscillator (FRO) trimmed to ±1% accuracy over 0 °C to 85 °C. This capability eliminates the need for an external 12 MHz crystal in USB peripheral designs, reducing BOM cost and PCB area while maintaining USB specification compliance for device enumeration and data transfer.

What is the package type and pin count of the LPC55S26JBD100?

The LPC55S26JBD100 uses the HLQFP100 package: a 100-lead plastic low-profile quad flat package with 14 mm × 14 mm body size, 0.5 mm lead pitch, and exposed thermal pad (SOT1570-3). Pin 1 is marked at the top-left corner, and the top-side marking reads "LPC55S26JBD100" on the first line, followed by date code and revision information.