NXP Semiconductors LPC5502JHI48EL

Overview

LPC5502JHI48EL from NXP Semiconductors is a 32-bit ARM Cortex-M33 microcontroller designed for secure, low-power embedded control in industrial and IoT edge nodes. It operates at up to 96 MHz, integrates 64 KB flash and 48 KB SRAM, features CAN 2.0 (not CAN FD), and includes a 16-bit 2.0 Msamples/sec ADC with seven analog input channels - deployed in smart sensor hubs requiring deterministic real-time response and firmware integrity.

For engineers reviewing the LPC5502JHI48EL datasheet, LPC5502JHI48EL pinout, LPC5502JHI48EL application, or LPC5502JHI48EL equivalent, key selection criteria include its HVQFN48 package footprint, TrustZone®-enabled security architecture without PUF or CASPER, PRINCE flash encryption support, and compatibility with NXP's MCUXpresso SDK for secure boot implementation and peripheral configuration.

Technical Context

The LPC5502JHI48EL implements ARMv8-M architecture with TrustZone® for hardware-enforced memory isolation, enabling secure firmware execution alongside non-secure application code. Its clock system combines internal FROs (96 MHz, 32 kHz, 1 MHz) with PLLs and external crystal support (16–32 MHz, 32.768 kHz), delivering precise timing across operating modes from active to deep power-down.

Peripheral integration centers on seven Flexcomm interfaces (UART/I2C/SPI/I2S), five 32-bit general-purpose timers, one SCTimer/PWM with 10 outputs, PLU for logic offload, and a dual-channel simultaneous-capable ADC - all accessible via AHB/APB bridges and configurable through IOCON registers without requiring external glue logic.

Key Specifications

Pinout & Package

HVQFN48 package with 48 terminals, 7 mm × 7 mm body, 0.85 mm height, and exposed thermal pad connected to VSS. Pin numbering follows standard counter-clockwise layout starting from top-left corner (pin 1 = PIO1_0/ADC0_11).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC5502JHI48, LPC5504JHI48 provides scalable memory headroom for evolving firmware, while LPC55S02JHI48 adds hardware crypto acceleration for advanced identity and key management - both maintain identical HVQFN48 mechanical fit and CAN 2.0 interface compatibility.

Availability

LPC5502JHI48EL is available at Aetrix Electronics and suitable for industrial sensor nodes, smart building controllers, energy metering endpoints, and secure firmware update hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPC5502JHI48EL 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with headquarters in Eindhoven, Netherlands.

The LPC5500 series targets cost-optimized, security-conscious embedded applications - delivering ARM Cortex-M33 performance with hardware-enforced trust, low-power operation, and flexible peripheral routing for rapid development of certified edge devices.

FAQ

What is the maximum operating frequency of the LPC5502JHI48EL?

The LPC5502JHI48EL operates at a maximum CPU frequency of 96 MHz using its internal 96 MHz Free Running Oscillator (FRO) or PLL-derived clocks. This frequency is achievable across the full −40 °C to +105 °C temperature range and 1.8–3.6 V supply voltage, with FRO trimming ensuring ±1% accuracy at 25 °C and ±2% over the full range.

Does the LPC5502JHI48EL support CAN FD or only classical CAN?

The LPC5502JHI48EL supports only CAN 2.0 (Classical CAN) - not CAN FD. This is confirmed in Table 2 of the datasheet, which lists "CAN2.0" under the CAN FD column for all LPC550x variants, distinguishing them from LPC55S0x parts that explicitly list "CAN FD". The CAN module is fully compatible with ISO 11898-1 and supports bit rates up to 1 Mbps.

How many ADC channels does the LPC5502JHI48EL provide, and what is its sampling rate?

The LPC5502JHI48EL integrates a 16-bit ADC with seven single-ended input channels (or three differential pairs plus one single-ended), supporting simultaneous conversions on two channels within a pair. Its maximum sampling rate is 2.0 Msamples/sec, enabled by dedicated hardware triggers and DMA support - sufficient for high-fidelity sensor data acquisition in motor control or audio preprocessing.

Is the LPC5502JHI48EL pin-compatible with other LPC55xx HVQFN48 variants?

Yes, the LPC5502JHI48EL is pin-compatible with all other HVQFN48-packaged LPC55xx devices, including LPC5504JHI48, LPC5506JHI48, LPC55S02JHI48, and LPC55S04JHI48. All share identical pin counts, physical dimensions, thermal pad layout, and core peripheral mappings - allowing drop-in replacement where memory, security, or peripheral requirements align.

What security features are included in the LPC5502JHI48EL?

The LPC5502JHI48EL includes TrustZone® for memory isolation, PRINCE for real-time flash encryption, HASH-AES for secure boot and data hashing, RNG for entropy generation, Code Watchdog for runtime flow integrity, and RSA-2048/4096 secure boot verification. It lacks CASPER and PUF - features present only in LPC55S0x variants - making it suitable for applications requiring foundational security without asymmetric crypto acceleration.