NXP Semiconductors LPC5516JBD64E

Overview

LPC5516JBD64E from NXP Semiconductors is a 32-bit Arm Cortex-M33 microcontroller designed for secure embedded applications requiring cryptographic acceleration, real-time control, and low-power operation. It integrates 256 KB flash, 96 KB SRAM, PRINCE flash encryption, CASPER crypto co-processor, CAN FD, USB full-speed and high-speed interfaces, and a 16-bit 2.0 Msamples/sec ADC. It operates up to 150 MHz and supports TrustZone® isolation for firmware integrity in industrial gateways and secure IoT edge nodes.

For engineers reviewing the LPC5516JBD64E datasheet, LPC5516JBD64E pinout, LPC5516JBD64E application, or LPC5516JBD64E equivalent, key selection criteria include its HTQFP64 package with 36 GPIOs, absence of TrustZone and PUF (vs. LPC55S16 variants), PRINCE-enabled secure flash updates, and CAN FD + dual USB capability - all validated for automotive body electronics and industrial PLC I/O modules.

Technical Context

The LPC5516JBD64E implements an Arm Cortex-M33 core (r0p4) with FPU, MPU, and NVIC, running at up to 150 MHz with integrated DSP instructions but without TrustZone or PUF hardware - distinguishing it from LPC55S1x siblings. Its security architecture relies on PRINCE-based flash encryption, HASH-AES engine, TRNG, and secure boot using RSA-2048/4096 signatures, enabling certified firmware validation without silicon-level isolation.

It features nine Flexcomm peripherals (USART/SPI/I2C/I2S configurable), a dedicated CAN FD controller with DMA, SCTimer/PWM with 16 capture/match registers, five 32-bit general-purpose timers, and a 24-bit multi-rate timer. Analog subsystem includes a 16-bit ADC with simultaneous dual-channel sampling, comparator, and integrated temperature sensor - all accessible via 36 GPIO pins in HTQFP64 package.

Key Specifications

Pinout & Package

HTQFP64 package (SOT 855-5), 10 × 10 × 0.5 mm body, 0.5 mm lead pitch, exposed thermal pad. Pin functions are software-configurable via IOCON registers; default reset state disables most pull-ups/pull-downs except specific 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 LPC55S16JBD64, the LPC5516JBD64 omits TrustZone and PUF but retains PRINCE, CASPER, and CAN FD - making it ideal for applications needing strong firmware encryption without hardware isolation overhead. Versus LPC5526JBD64, it trades memory capacity for lower unit cost and power consumption in resource-constrained edge nodes.

Availability

LPC5516JBD64E is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, secure IoT edge gateways, and medical sensor hubs requiring stable component supply across extended product lifecycles.

Supply support for LPC5516JBD64E 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 R&D centers across Europe, Asia, and North America.

The LPC551x series targets cost-optimized, secure embedded control applications where PRINCE-based flash encryption and CAN FD connectivity are essential, but hardware-enforced TrustZone isolation is not required.

FAQ

What is the maximum operating frequency of the LPC5516JBD64E?

The LPC5516JBD64E operates at a maximum CPU frequency of 150 MHz, enabled by its Arm Cortex-M33 core with integrated flash accelerator and PLL clock synthesis. This speed is sustained across the full industrial temperature range (−40 °C to +105 °C) and 1.8–3.6 V supply, making LPC5516JBD64E suitable for real-time control tasks such as motor commutation and protocol stack processing.

Does the LPC5516JBD64E support TrustZone security technology?

No, the LPC5516JBD64E does not include Arm TrustZone hardware. Unlike the LPC55S1x variants, this part omits TrustZone and PUF, relying instead on PRINCE flash encryption, HASH-AES, and secure boot with RSA-2048/4096 signatures for firmware protection. The LPC5516JBD64E is designed for applications where cryptographic enforcement suffices without silicon-level memory isolation.

How many GPIO pins are available on the LPC5516JBD64E in HTQFP64 package?

The LPC5516JBD64E in HTQFP64 package provides 36 GPIO pins (PIO0_0 through PIO0_35), each configurable via IOCON registers for digital I/O, peripheral functions (UART, SPI, I2C, CAN FD), ADC inputs, or comparator channels. This count is confirmed in Table 2 of the datasheet and reflects the reduced pin count versus 64-pin HLQFP variants.

What USB capabilities does the LPC5516JBD64E support?

The LPC5516JBD64E integrates both USB 2.0 full-speed and high-speed host/device controllers with on-chip PHYs. Full-speed mode supports crystal-less operation using internal FRO, while high-speed mode requires external 12 MHz clock. Both interfaces share dedicated DMA controllers and 16 KB USB SRAM, enabling simultaneous host-peripheral and device-host communication in LPC5516JBD64E-based designs.

Is the LPC5516JBD64E pin-compatible with other LPC55xx family members in HTQFP64?

Yes, the LPC5516JBD64E shares identical pinout and package (HTQFP64, SOT 855-5) with LPC55S16JBD64, LPC5514JBD64, and LPC55S14JBD64. Signal mapping, power/ground pin locations, and debug interface (SWD) pins are functionally identical, allowing direct PCB reuse across these variants - though firmware must account for feature differences like TrustZone or PUF presence.