NXP Semiconductors LPC55S04JHI48QL

Overview

LPC55S04JHI48QL 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 edge nodes requiring secure firmware updates, encrypted sensor data handling, and deterministic real-time control.

For engineers reviewing the LPC55S04JHI48QL datasheet, LPC55S04JHI48QL pinout, LPC55S04JHI48QL application, or LPC55S04JHI48QL equivalent, this page delivers verified package mapping (HVQFN48), confirmed security features (PUF, SHA2-AES, DICE), validated peripheral count (30 GPIO, 7 ADC channels), and accurate Flexcomm interface allocation (7 configurable serial interfaces).

Technical Context

The LPC55S04JHI48QL implements ARMv8-M architecture with TrustZone-enforced memory isolation, enabling secure boot via RSA-2048/4096 signature verification and root-of-trust key revocation. Its dual DMA controllers (23+10 channels) offload data movement from the 96 MHz CPU core across peripherals including CAN FD, SCTimer/PWM, and 16-bit 2.0 Msamples/sec ADC.

Security is hardware-rooted: PUF generates 64–4096-bit keys from SRAM fingerprinting; PRINCE encrypts flash writes/decrypts reads in real time; CASPER accelerates ECC operations; and Code Watchdog validates runtime instruction flow integrity-collectively satisfying TBSA compliance and enabling certified secure firmware deployment.

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 LPC55S04JHI48QL, LPC55S06JHI48 offers higher memory headroom for feature-rich firmware, while LPC5504JHI48 removes all hardware security blocks-making it suitable only for non-secure legacy upgrades where TrustZone and encrypted flash are not required.

Availability

LPC55S04JHI48QL is available at Aetrix Electronics and suitable for industrial IoT gateways, secure medical sensor hubs, automotive body control modules, and smart energy metering nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC55S04JHI48QL 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 headquarters in Eindhoven, Netherlands.

The LPC55S0x series targets secure edge intelligence applications-integrating TrustZone, PRINCE, and CASPER to enable certified firmware execution, encrypted data pipelines, and hardware-rooted device identity in resource-constrained MCUs.

FAQ

What is the maximum operating frequency of the LPC55S04JHI48QL CPU core?

The LPC55S04JHI48QL features an ARM Cortex-M33 core running at a maximum frequency of 96 MHz. This clock speed is achieved using the internal 96 MHz Free Running Oscillator (FRO) or PLL-synthesized clocks derived from internal or external sources. The FRO is factory-trimmed to ±1% accuracy across voltage and 0 °C to 85 °C, ensuring reliable timing without external crystal dependency for many applications. The LPC55S04JHI48QL maintains full peripheral functionality-including CAN FD, ADC, and Flexcomm interfaces-at this rated frequency.

Does the LPC55S04JHI48QL support secure boot with public-key cryptography?

Yes, the LPC55S04JHI48QL supports secure boot using RSASSA-PKCS1-v1_5 signatures of SHA256 digests, with RSA-2048 and RSA-4096 public key verification. It validates images using x509 certificates and stores up to four revocable Root of Trust (RoT) keys in protected flash. The ROM bootloader enforces anti-rollback via image key revocation and supports NXP Secure Boot file format (SB2). These capabilities are active by default and require no external secure element-the LPC55S04JHI48QL implements the entire chain of trust in silicon.

How many ADC channels does the LPC55S04JHI48QL provide, and what is its sampling capability?

The LPC55S04JHI48QL integrates a 16-bit ADC with 7 single-ended input channels (or 3 differential pairs), supporting simultaneous conversions on two channels within a pair. Its maximum sample rate is 2.0 Msamples/sec, enabled by dedicated hardware triggers and DMA integration. The ADC connects to an internal temperature sensor and accepts external references via VREFP/VSSA pins. All 7 channels are accessible on the HVQFN48 package, with inputs mapped to specific PIO pins (e.g., PIO0_9/ACMP0_B, PIO0_10/ADC0_1) as defined in the pin description table.

What serial communication interfaces are available on the LPC55S04JHI48QL?

The LPC55S04JHI48QL provides seven Flexcomm interfaces (Flexcomm 0–6), each configurable as USART, SPI, I2C, or I2S, plus one dedicated high-speed SPI interface (Flexcomm 8). It also includes a CAN FD controller with integrated DMA. Unlike the 64-pin variant, the HVQFN48 package supports up to four I2S channel pairs and three SPI instances. All Flexcomm peripherals include FIFOs and support fractional baud-rate generation. The LPC55S04JHI48QL does not include Flexcomm 7, limiting total configurable serial instances compared to the HTQFP64 variant.

Is the LPC55S04JHI48QL pin-compatible with other members of the LPC55S0x family in HVQFN48 packaging?

Yes, the LPC55S04JHI48QL is pin-compatible with LPC55S06JHI48, LPC5504JHI48, and LPC5506JHI48 in the HVQFN48 package-sharing identical pin count, layout, thermal pad configuration, and electrical characteristics. All share the same 48-terminal footprint (SOT619-28), allowing drop-in replacement for memory or feature scaling. However, functional differences exist: LPC55S06JHI48 doubles flash/SRAM and adds GPIO/ADC channels, while LPC550x variants omit TrustZone, PRINCE, CASPER, and PUF-requiring firmware validation before substitution.