NXP Semiconductors LPC55S04JHI48EL

Overview

LPC55S04JHI48EL from NXP Semiconductors is a secure ARM Cortex-M33 microcontroller with TrustZone, 128 KB flash, 80 KB SRAM, PRINCE real-time flash encryption, CASPER crypto co-processor, and CAN FD interface-designed for industrial control, secure IoT edge nodes, and automotive body electronics requiring certified boot and hardware-accelerated cryptography.

For engineers reviewing the LPC55S04JHI48EL datasheet, LPC55S04JHI48EL pinout, LPC55S04JHI48EL application, or LPC55S04JHI48EL equivalent, this page delivers verified specifications, HVQFN48 package mapping, security feature implementation details, and validated alternative parts for secure embedded design evaluation.

Technical Context

The LPC55S04JHI48EL implements ARMv8-M architecture with TrustZone isolation, enabling secure firmware execution and peripheral access control. Its dual DMA controllers (23+10 channels), SCTimer/PWM with 16 capture/match registers, and Flexcomm interfaces (7 configurable UART/SPI/I2C/I2S + HS SPI) support deterministic real-time I/O handling in resource-constrained environments.

Security is enforced at silicon level via PUF-generated 64–4096-bit keys, AES-256 engine fed directly from PUF, SHA2/Hash-AES module with dedicated DMA, and DICE-compliant Device Identifier Composition Engine. Secure Boot uses RSASSA-PKCS1-v1_5 signatures over SHA256 digests with RSA-2048/4096 key support and up to four revocable Roots of Trust.

Key Specifications

Pinout & Package

HVQFN48 package with 48 terminals, thermal-enhanced construction, and exposed pad requiring connection to VSS for optimal thermal performance and EMI suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC55S04JHI48, LPC55S06JHI48 offers greater memory headroom for future firmware expansion, while LPC5504JHI48 sacrifices all security accelerators to reduce unit cost-making LPC55S04JHI48 the optimal balance of certified security, real-time capability, and pin-compatible footprint for mid-tier secure edge devices.

Availability

LPC55S04JHI48EL is available at Aetrix Electronics and suitable for industrial PLC I/O modules, secure automotive body controllers, and medical sensor hubs requiring stable component supply across multi-year production cycles.

Supply support for LPC55S04JHI48EL 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 40 years of microcontroller innovation.

The LPC55S0x series targets secure edge intelligence applications, integrating TrustZone, PRINCE, CASPER, and DICE to simplify compliance with PSA Certified, SESIP, and Common Criteria standards.

FAQ

What is the maximum operating frequency of the LPC55S04JHI48EL?

The LPC55S04JHI48EL operates at a maximum CPU frequency of 96 MHz using its ARM Cortex-M33 core. This speed is achieved via internal PLLs driven by the 12 MHz FRO or external 16–32 MHz crystal oscillator. The FRO is trimmed to ±1% accuracy across 0 °C to 85 °C, ensuring stable timing for real-time control loops without requiring external precision clocks.

Does the LPC55S04JHI48EL support secure boot with public-key cryptography?

Yes, the LPC55S04JHI48EL supports secure boot using RSASSA-PKCS1-v1_5 signatures over SHA256 digests, with RSA-2048 and RSA-4096 public key support. It validates x509-formatted image keys against up to four revocable Roots of Trust stored in protected flash, and enforces anti-rollback through serial-number-based image key revocation-fully implemented in ROM bootloader without software dependency.

How many ADC channels does the LPC55S04JHI48EL provide, and what is its sampling rate?

The LPC55S04JHI48EL integrates a 16-bit ADC with 7 single-ended input channels (or 3.5 differential pairs), capable of simultaneous conversions on paired inputs. It achieves up to 2.0 million samples per second, supported by multiple internal/external trigger sources and direct DMA transfer to SRAM-enabling high-fidelity sensor data acquisition in medical and industrial monitoring systems.

What security accelerators are integrated into the LPC55S04JHI48EL?

The LPC55S04JHI48EL includes PRINCE (real-time AES-128 flash encryption), CASPER (ECC acceleration), PUF (SRAM-based key generation), Hash-AES (SHA2/256 + AES-256 with dedicated DMA), and RNG (True Random Number Generator). These accelerators operate independently of the CPU, enabling cryptographic operations without compromising real-time task scheduling or increasing firmware attack surface.

Is the LPC55S04JHI48EL pin-compatible with other members of the LPC55S0x family?

Yes, the LPC55S04JHI48EL shares identical HVQFN48 pinout and signal mapping with LPC55S06JHI48, LPC5504JHI48, and LPC5506JHI48-enabling hardware reuse across performance and security variants. However, functional differences exist: LPC55S04JHI48 supports TrustZone, PRINCE, CASPER, and PUF, while LPC550x variants omit these security blocks despite identical packaging and pin assignment.