NXP Semiconductors LPC5516JBD64K

Overview

LPC5516JBD64K from NXP Semiconductors is an Arm Cortex-M33 microcontroller designed for secure embedded applications requiring real-time control, cryptographic acceleration, and low-power operation. It integrates 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 - deployed in industrial gateways, secure IoT edge nodes, and automotive body electronics.

For engineers reviewing the LPC5516JBD64K datasheet, LPC5516JBD64K pinout, LPC5516JBD64K application, or LPC5516JBD64K equivalent, key selection criteria include TrustZone®-enabled secure boot support, PRINCE flash encryption, CASPER crypto co-processor for ECC acceleration, and HTQFP64 package compatibility with 36 GPIOs and crystal-less USB FS operation.

Technical Context

The LPC5516JBD64K implements Arm TrustZone® at the hardware level to isolate secure and non-secure execution environments, enabling secure firmware updates and protected key storage via PUF-generated AES-256 keys. Its PRINCE module performs real-time on-the-fly encryption/decryption of flash contents without software overhead.

It features two DMA controllers (23-channel DMA0 and 10-channel DMA1), a programmable SCTimer/PWM with 16 capture/match registers, and nine Flexcomm interfaces configurable as USART/SPI/I2C/I2S - each with dedicated FIFO and fractional baud-rate generation. The device lacks CASPER and PUF hardware compared to LPC55S1x variants but retains HASH-AES, RNG, and full CAN FD capability.

Key Specifications

Pinout & Package

HTQFP64 package with exposed thermal pad; 64-pin quad flat configuration optimized for thermal performance and PCB routing simplicity in space-constrained industrial designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC5516JBD64K, LPC55S16JBD64 delivers higher cryptographic throughput and stronger root-of-trust assurance, while LPC5514JBD64 trades memory capacity for reduced unit cost - both retain identical HTQFP64 packaging and CAN FD/USB HS functionality.

Availability

LPC5516JBD64K is available at Aetrix Electronics and suitable for industrial gateways, secure IoT edge nodes, and automotive body control modules requiring stable component supply across multi-year production cycles.

Supply support for LPC5516JBD64K 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 50 years of embedded systems expertise.

The LPC5516JBD64K belongs to the LPC5500 series targeting cost-optimized, security-aware microcontrollers for resource-constrained edge devices - emphasizing flash encryption, secure boot, and CAN FD integration without crypto co-processor overhead.

FAQ

Does LPC5516JBD64K support TrustZone® and secure boot?

Yes, LPC5516JBD64K supports Arm TrustZone® for hardware-enforced secure/non-secure world separation and implements secure boot using RSA-2048/4096 signature verification with SHA256 digest. It validates images against up to four revocable Root of Trust keys stored in protected flash, enabling anti-rollback protection and secure firmware updates - all confirmed in the official NXP LPC55S1x/LPC551x datasheet Rev. 1.8.

What is the maximum ADC sampling rate supported by LPC5516JBD64K?

The LPC5516JBD64K integrates a 16-bit ADC capable of up to 2.0 Msamples/sec with simultaneous conversion on differential channel pairs. This performance is achieved using internal clocking and supports real-time signal acquisition in applications such as motor control and sensor fusion - verified in Section 2.7 (Analog peripherals) of the NXP product data sheet.

Is PRINCE flash encryption available on LPC5516JBD64K?

Yes, LPC5516JBD64K includes the PRINCE module for real-time AES-128 encryption and decryption of on-chip flash contents during read/write operations. This feature enables secure asset protection including application code confidentiality and authenticated firmware updates - explicitly listed in Table 2 (Ordering options) and Section 2.3 of the NXP datasheet.

How many GPIO pins does LPC5516JBD64K provide in the HTQFP64 package?

LPC5516JBD64K provides 36 GPIO pins in the HTQFP64 package, as documented in Table 2 of the NXP ordering information. These pins support multiple functions including ADC inputs, comparator channels, Flexcomm interfaces, and secure GPIO capability - distinct from the 64 GPIO count offered in HLQFP100 variants.

Does LPC5516JBD64K include the CASPER crypto co-processor?

No, LPC5516JBD64K does not include the CASPER crypto co-processor. Per Table 2 in the NXP datasheet, CASPER is present only in LPC55S1x variants (e.g., LPC55S16JBD64), while LPC5516JBD64K retains HASH-AES, TRNG, and secure boot but omits hardware acceleration for asymmetric cryptography like ECC - making it suitable for symmetric encryption and authentication workloads.