NXP Semiconductors LPC5528JBD64Y

Overview

LPC5528JBD64Y from NXP Semiconductors is a 32-bit Arm Cortex-M33 microcontroller operating at up to 150 MHz, featuring 512 KB on-chip flash, 256 KB SRAM, full-speed and high-speed USB interfaces, and SDIO support. It delivers secure embedded control for industrial IoT edge nodes requiring real-time processing, cryptographic acceleration (via CASPER), and low-power operation across -40 °C to +105 °C.

For engineers reviewing the LPC5528JBD64Y datasheet, LPC5528JBD64Y pinout, LPC5528JBD64Y application, or LPC5528JBD64Y equivalent, this page provides verified technical context, package-specific pin mapping, security feature implementation details, and validated alternative options for secure MCU selection in resource-constrained, safety-aware designs.

Technical Context

The LPC5528JBD64Y 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). It integrates PRINCE for real-time flash encryption but omits CASPER crypto co-processor and PUF hardware-distinguishing it from LPC55S2x variants.

It supports secure boot via RSA-2048/4096 signature verification of SHA256 digests, uses x.509 certificates for RoT validation, and includes HASH-AES engine, TRNG, and 128-bit UUID. Its 36 GPIO pins include secure GPIOs, eight pin-interrupt-capable inputs, two GPIO group interrupts, and configurable I/O functions routed through IOCON registers.

Key Specifications

Pinout & Package

Package: HTQFP64 (plastic low-profile quad flat package, 64 leads, body 10 × 10 × 0.5 mm, pitch 0.5 mm, SOT855-5).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC55S28JBD64, LPC5528JBD64Y removes CASPER and PUF to reduce cost while retaining PRINCE, HASH-AES, and secure boot-making it optimal for symmetric-crypto-dominant use cases. Versus LPC5526JBD64, it doubles flash and SRAM capacity for complex firmware with OTA update partitions and larger crypto buffers.

Availability

LPC5528JBD64Y is available at Aetrix Electronics and suitable for industrial IoT gateways, smart metering systems, and medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LPC5528JBD64Y 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 LPC552x series is designed for cost-optimized, high-security embedded applications where robust secure boot, flash encryption, and USB/SDIO connectivity are essential-but hardware-accelerated asymmetric cryptography is not required.

FAQ

Does LPC5528JBD64Y include the CASPER crypto co-processor?

No, LPC5528JBD64Y does not include the CASPER crypto co-processor. This distinguishes it from the LPC55S2x family. The LPC5528JBD64Y retains HASH-AES, TRNG, secure boot, and PRINCE flash encryption-but lacks hardware acceleration for ECC or other asymmetric algorithms. Designers requiring CASPER must select LPC55S28JBD64 instead.

What is the maximum GPIO count supported by LPC5528JBD64Y?

LPC5528JBD64Y supports 36 GPIO pins in its HTQFP64 package. These include standard GPIOs, secure GPIOs, pin-interrupt-capable inputs (up to eight), and GPIO group interrupts (GINT). Pin functions are configurable via IOCON registers, and all GPIOs are accessible on the AHB bus for low-latency access.

Is LPC5528JBD64Y pin-compatible with LPC55S28JBD64?

Yes, LPC5528JBD64Y is pin-compatible with LPC55S28JBD64 in the HTQFP64 package. Both share identical pin count, mechanical footprint, and signal assignment per pin. However, CASPER and PUF signals present on LPC55S28JBD64 are unused/no-connect on LPC5528JBD64Y-requiring no PCB changes but software-level awareness of missing peripherals.

What boot sources does LPC5528JBD64Y support?

LPC5528JBD64Y supports booting from on-chip flash, USB HID-class interface, UART (Flexcomm 0), SPI slave (Flexcomm 3 or 9), and I2C slave (Flexcomm 1). The boot source is determined by the state of PIO0_5 at reset. ROM bootloader also supports CRC32 image integrity checking and secure firmware updates using NXP SB2 format.

Does LPC5528JBD64Y support high-speed USB device mode?

Yes, LPC5528JBD64Y integrates a USB 2.0 high-speed host/device controller with on-chip high-speed PHY. It supports both full-speed (12 Mbps) and high-speed (480 Mbps) operation in device mode, including crystal-less full-speed operation using internal FRO. High-speed mode requires external 12 MHz crystal or oscillator reference.