NXP Semiconductors LPC5516JBD64Y

Overview

LPC5516JBD64Y from NXP Semiconductors is an Arm Cortex-M33 microcontroller designed for secure embedded applications, featuring 256 KB flash, 96 KB SRAM, CAN FD interface, USB full-speed and high-speed controllers, and a 16-bit 2.0 Msamples/sec ADC. It operates up to 150 MHz and integrates PRINCE flash encryption, CASPER crypto acceleration, and TrustZone-enabled security for industrial control and IoT edge nodes.

For engineers reviewing the LPC5516JBD64Y datasheet, LPC5516JBD64Y pinout, LPC5516JBD64Y application, or LPC5516JBD64Y equivalent, this device supports crystal-less USB FS operation, secure boot with RSA-2048/4096, PUF-based key generation, and flexible Flexcomm peripherals configurable as USART/SPI/I2C/I2S - critical for low-footprint, high-integrity designs requiring deterministic timing and cryptographic agility.

Technical Context

The LPC5516JBD64Y implements Arm TrustZone® to isolate secure and non-secure execution environments, with hardware-enforced memory protection via MPU and secure debug authentication using RSA-2048/4096. Its CASPER co-processor accelerates ECC operations, while PRINCE enables real-time AES-256 encryption/decryption of on-chip flash during read/write.

It features two DMA controllers (23+10 channels), nine Flexcomm interfaces supporting mixed serial protocols, and a programmable SCTimer/PWM with 16 capture/match registers. The 16-bit ADC achieves 2.0 Msamples/sec with simultaneous dual-channel conversion capability and integrated temperature sensor input.

Key Specifications

Pinout & Package

HTQFP64 package with exposed thermal pad, 0.5 mm pitch, and 64 leads. Pin functions are software-configurable via IOCON registers; default reset state disables most pull-ups/pull-downs except on 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 microcontroller applications.

Compared with LPC5516JBD64Y, LPC55S16JBD64 adds production-grade security primitives essential for regulated markets, while LPC5526JBD64 extends real-time I/O capacity and memory - making LPC5516JBD64Y optimal for cost-sensitive, security-aware edge nodes where basic CAN FD + USB + ADC performance suffices.

Availability

LPC5516JBD64Y is available at Aetrix Electronics and suitable for industrial control systems, secure IoT gateways, medical handheld devices, and automotive body electronics requiring stable component supply across long product lifecycles.

Supply support for LPC5516JBD64Y 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 trusted execution environments.

The LPC551x series targets cost-optimized, security-aware embedded applications where robust peripheral integration and deterministic real-time performance outweigh full TrustZone implementation - delivering hardened functionality without premium security licensing overhead.

FAQ

What is the maximum operating frequency of the LPC5516JBD64Y?

The LPC5516JBD64Y operates at up to 150 MHz using its Arm Cortex-M33 core. This frequency is achievable with internal PLL clock sources derived from the 12 MHz FRO, external crystal (12–32 MHz), or 32.768 kHz RTC oscillator - enabling deterministic real-time response in time-critical control loops without external high-frequency crystals.

Does the LPC5516JBD64Y support secure boot functionality?

The LPC5516JBD64Y does not include secure boot support, unlike the LPC55S1x variants. It lacks TrustZone®, PUF, CASPER, and the full ROM bootloader features required for cryptographic image validation. Its bootloader supports basic ISP programming and CRC32 integrity checks but no RSA signature verification or root-of-trust establishment.

How many GPIO pins are available on the LPC5516JBD64Y in HTQFP64 package?

The LPC5516JBD64Y in HTQFP64 package provides 36 GPIO pins. These are distributed across PORT0 and PORT1, with configurable alternate functions including UART, SPI, I2C, I2S, ADC inputs, comparator inputs, and CAN FD signals - all accessible via software-controlled IOCON register settings.

What USB capabilities does the LPC5516JBD64Y offer?

The LPC5516JBD64Y integrates both USB 2.0 full-speed and high-speed host/device controllers with on-chip PHYs. It supports crystal-less operation in full-speed device mode using internal clock recovery, and includes dedicated DMA controllers for zero-CPU-overhead data transfers - ideal for HID, CDC, and mass-storage class implementations.

Is the LPC5516JBD64Y compatible with the same development tools as the LPC55S1x series?

Yes, the LPC5516JBD64Y is fully supported by NXP's MCUXpresso SDK, IDE, and configuration tools. It shares identical pinout, memory map, peripheral register layout, and debug interface (SWD) with LPC55S1x devices in the same package - allowing reuse of board layouts, drivers, and middleware across both families.