NXP Semiconductors LPC55S16JBD100K

Overview

LPC55S16JBD100K from NXP Semiconductors is a 32-bit Arm Cortex-M33 microcontroller with TrustZone security, PRINCE flash encryption, CASPER crypto co-processor, 256 KB flash, 96 KB SRAM, CAN FD, USB HS/FS, and a 16-bit 2.0 Msamples/sec ADC - deployed in secure industrial gateways requiring real-time control and cryptographic integrity.

For engineers reviewing the LPC55S16JBD100K datasheet, LPC55S16JBD100K pinout, LPC55S16JBD100K application, or LPC55S16JBD100K equivalent, key selection criteria include TrustZone-enforced memory isolation, PRINCE-enabled over-the-air firmware updates, CASPER-accelerated ECC operations, and HLQFP100 package compatibility with high-pin-count industrial PCB layouts.

Technical Context

The LPC55S16JBD100K implements Arm TrustZone to enforce hardware-isolated secure and non-secure execution environments, with PRINCE performing real-time AES-128 encryption/decryption of flash reads and writes. Its CASPER co-processor offloads elliptic curve cryptography (ECC) operations including point multiplication and modular arithmetic.

It integrates two DMA controllers (23-channel DMA0 and 10-channel DMA1), a programmable logic unit (PLU) for custom state-machine logic, and a flexible Flexcomm interface subsystem supporting up to nine concurrent serial peripherals - each configurable as USART, SPI, I2C, or I2S with independent FIFOs and clocking.

Key Specifications

Pinout & Package

HLQFP100 package with 100 leads, 0.5 mm pitch, and 14 mm × 14 mm body size. Pin functions are software-configurable via IOCON registers; default reset state disables pull-ups/pull-downs on most pins except designated debug and boot pins (e.g., PIO0_5 determines boot source).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC55S16JBD100K, LPC55S28JBD100 offers scalable memory and identical security architecture for future-proof designs, while RA6M5GFP100AA00 trades hardware crypto acceleration for higher CPU performance and memory - making LPC55S16JBD100K optimal for cost-sensitive, crypto-intensive edge nodes.

Availability

LPC55S16JBD100K is available at Aetrix Electronics and suitable for industrial PLC controllers, secure edge gateways, medical diagnostic devices, and automotive body control modules requiring stable component supply across extended product lifecycles.

Supply support for LPC55S16JBD100K 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC55S1x series is designed for resource-constrained, security-critical embedded applications - integrating Arm TrustZone, PRINCE, CASPER, and DICE to enable certified secure boot, runtime attestation, and encrypted firmware updates in industrial and medical edge devices.

FAQ

What is the maximum operating frequency of the LPC55S16JBD100K core?

The LPC55S16JBD100K features an Arm Cortex-M33 core rated for operation up to 150 MHz. This frequency is achievable using internal PLLs driven by the 96 MHz Free Running Oscillator (FRO) or external crystal sources. The core includes a floating-point unit (FPU) and memory protection unit (MPU), and its performance is validated across the full -40 °C to +105 °C temperature range with 1.8–3.6 V supply.

Does the LPC55S16JBD100K support secure boot with public-key verification?

Yes, the LPC55S16JBD100K supports secure boot using RSASSA-PKCS1-v1_5 signatures over SHA256 digests, with validation of RSA-2048 and RSA-4096 public keys stored in x.509 certificates. Root of Trust keys are hashed and stored in protected flash, and anti-rollback is enforced via image key revocation using the certificate Serial Number field - all implemented in ROM bootloader without software dependency.

How does PRINCE encryption work on the LPC55S16JBD100K?

PRINCE on the LPC55S16JBD100K performs real-time AES-128 encryption of data written to flash and decryption of data read from flash - transparently handled by hardware with zero CPU intervention. Encrypted regions are defined in the Protected Flash Region (PFR), and keys are derived from the PUF or supplied securely. This enables secure over-the-air updates without exposing decrypted firmware in memory or requiring external encryption ICs.

What analog capabilities does the LPC55S16JBD100K provide?

The LPC55S16JBD100K integrates a 16-bit ADC capable of 2.0 Msamples/sec with simultaneous sampling on differential channel pairs, five analog comparator inputs with selectable references, and an on-die temperature sensor routed to the ADC. It supports up to 10 single-ended or five differential ADC channels, with internal and external trigger sources - enabling precision current sensing, power quality analysis, and thermal monitoring in real-time control systems.

Is the LPC55S16JBD100K pin-compatible with other LPC55S1x variants in HLQFP100?

Yes, the LPC55S16JBD100K shares identical pinout, package dimensions (HLQFP100, 14 × 14 × 0.5 mm), and electrical characteristics with other LPC55S1x family members in the same HLQFP100 package, including LPC55S14JBD100 and LPC55S28JBD100. Firmware and PCB layout are interchangeable across these variants, allowing memory-scaling upgrades without hardware redesign.