NXP Semiconductors LPC55S04JBD64Y

Overview

LPC55S04JBD64Y from NXP Semiconductors is a 32-bit ARM Cortex-M33 microcontroller with TrustZone security, PRINCE flash encryption, CASPER crypto co-processor, 128 KB on-chip flash, 80 KB SRAM, and CAN FD interface-designed for secure industrial control, IoT edge nodes, and automotive body electronics requiring real-time operation and cryptographic integrity.

For engineers reviewing the LPC55S04JBD64Y datasheet, LPC55S04JBD64Y pinout, LPC55S04JBD64Y application, or LPC55S04JBD64Y equivalent, this page delivers verified specifications, HTQFP64 package mapping, functional pin roles, security architecture context, and validated alternative options for secure embedded design.

Technical Context

The LPC55S04JBD64Y implements ARMv8-M architecture with TrustZone-enabled memory isolation, integrated FPU and MPU, and hardware-accelerated cryptography via CASPER (ECC) and PRINCE (real-time flash encryption/decryption). Its dual DMA controllers (23+10 channels) support concurrent peripheral data movement including CAN FD, Flexcomm interfaces, and ADC.

Security execution relies on ROM-based secure boot with RSA-2048/4096 signature verification, SHA256 hash engine, PUF-derived key generation (64–4096 bits), AES-256, TRNG, and Code Watchdog for runtime flow integrity-enabling DICE-compliant device identity and anti-rollback firmware updates.

Key Specifications

Pinout & Package

HTQFP64 package: plastic low-profile quad flat package with 64 leads, 0.5 mm pitch, 10 × 10 × 0.5 mm body, exposed thermal pad connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC55S06JBD64, the LPC55S04JBD64Y offers identical security architecture and peripheral set at reduced memory cost-ideal for cost-sensitive secure edge nodes. Versus RA6M5GFPMXXFA, it trades higher CPU speed and Ethernet for superior integrated crypto performance and smaller footprint.

Availability

LPC55S04JBD64Y is available at Aetrix Electronics and suitable for industrial PLC edge nodes, secure IoT gateways, automotive body control modules, and medical sensor hubs requiring stable component supply and long-term lifecycle assurance.

Supply support for LPC55S04JBD64Y 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 hardware security.

The LPC55S0x series targets resource-constrained embedded systems demanding certified security, real-time responsiveness, and cryptographic agility-designed specifically for applications where firmware integrity, device identity, and side-channel resistance are non-negotiable.

FAQ

What is the maximum operating frequency of the LPC55S04JBD64Y?

The LPC55S04JBD64Y operates at up to 96 MHz using its ARM Cortex-M33 core. This frequency is achievable with the internal 96 MHz Free Running Oscillator (FRO), PLL0, or PLL1 clock sources. The FRO is trimmed to ±1% accuracy across voltage and 0 °C to 85 °C, ensuring reliable timing without external crystals in many applications. All peripherals-including ADC, timers, and Flexcomm interfaces-are fully functional at this maximum rate.

Does the LPC55S04JBD64Y support secure boot with public-key cryptography?

Yes, the LPC55S04JBD64Y supports secure boot using RSASSA-PKCS1-v1_5 signatures of SHA256 digests, with RSA-2048 and RSA-4096 public keys. It validates images using x.509 certificates and stores up to four revocable Root of Trust keys in protected flash. The ROM bootloader enforces anti-rollback via image key revocation and supports NXP Secure Boot file format (SB2), making LPC55S04JBD64Y compliant with TBSA and DICE v2.0 standards.

How does the PRINCE module function in the LPC55S04JBD64Y?

The PRINCE module in the LPC55S04JBD64Y performs real-time AES-128 encryption and decryption of on-chip flash data during read/write operations. It uses keys derived from the PUF or software-supplied values, enabling transparent protection of firmware and assets without software intervention. This allows secure over-the-air updates and prevents reverse engineering of flash contents-even if the physical chip is extracted-while maintaining full compatibility with standard flash programming workflows.

What analog capabilities does the LPC55S04JBD64Y provide?

The LPC55S04JBD64Y integrates a 16-bit ADC with up to 9 differential input channels (18 single-ended), supporting simultaneous conversions at up to 2.0 Msamples/sec. It includes an on-chip temperature sensor and analog comparator with five input pins and selectable internal/external references. These analog resources are directly accessible via the AHB bus and support hardware triggers from timers or Flexcomm interfaces-enabling precise sensor acquisition without CPU intervention.

Is the LPC55S04JBD64Y pin-compatible with other members of the LPC55S0x family?

Yes, the LPC55S04JBD64Y shares the same HTQFP64 package and pinout with LPC55S06JBD64, LPC5504JBD64, and LPC5506JBD64. All HTQFP64 variants use identical mechanical dimensions, pad layout, and signal assignments-including power, ground, debug, CAN FD, Flexcomm, ADC, and GPIO pins. Firmware developed for one HTQFP64 variant can be reused across others with only memory-size and feature-enablement adjustments.