NXP Semiconductors LPC5506JHI48QL
- Part No.:
- LPC5506JHI48QL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
LPC5506JHI48QL.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48HVQFN
- Quantity:
- Payment:

- Shipping:

Inventory:154
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Product details
Overview
LPC5506JHI48QL from NXP Semiconductors is a 32-bit ARM Cortex-M33 microcontroller designed for secure embedded control applications. It operates at up to 96 MHz, integrates 256 KB flash and 96 KB SRAM, features CAN 2.0 (not CAN FD), a 16-bit 2.0 Msamples/sec ADC with 7 channels, and supports TrustZone®-enabled secure boot without PUF or CASPER acceleration.
For engineers reviewing the LPC5506JHI48QL datasheet, LPC5506JHI48QL pinout, LPC5506JHI48QL application, or LPC5506JHI48QL equivalent, key selection criteria include its HVQFN48 package, 30 GPIOs, PRINCE flash encryption, dual 32 kHz clock sources (FRO and crystal), and absence of hardware crypto accelerators (CASPER/PUF) compared to LPC55S0x variants.
Technical Context
The LPC5506JHI48QL implements ARMv8-M architecture with TrustZone® for memory isolation but omits CASPER co-processor and Physical Unclonable Function (PUF), limiting asymmetric cryptographic acceleration. Its security model relies on software-managed AES-256 and SHA2 via dedicated HASH-AES engine, supported by ROM-based secure boot using RSA-2048/4096 signatures and x.509 certificate validation.
It uses two independent clock domains: a 96 MHz system clock derived from FRO or PLL, and an always-on 32 kHz domain for RTC and wake-up timers. The HVQFN48 package provides 30 GPIOs with configurable functions including Flexcomm interfaces (up to 7 UART/I²C/SPI/I²S instances), SCTimer/PWM, PLU, and analog peripherals-ADC, comparator, and temperature sensor-all accessible within the same power domain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M33 @ 96 MHz with TrustZone®, FPU, and MPU - enables real-time deterministic control with hardware-enforced memory isolation. |
| Memory | 256 KB on-chip flash + 96 KB SRAM (16 KB code bus + 64 KB system bus + 16 KB system bus) - supports large firmware images and real-time data buffering. |
| Analog | 16-bit ADC @ 2.0 Msamples/sec, 7 single-ended channels - delivers high-resolution sensor acquisition for industrial monitoring. |
| Serial Interfaces | 7 Flexcomm peripherals (configurable as UART/I²C/SPI/I²S) + HS SPI - provides flexible peripheral connectivity without external transceivers. |
| Security | PRINCE flash encryption, ROM-based secure boot (RSA-2048/4096), SHA2/AES engines - protects firmware integrity and enables field-upgradable trusted execution. |
| Timers | 5x 32-bit general-purpose timers, SCTimer/PWM, RTC, MRT, WWDT - supports precise timing, motor control PWM generation, and low-power wake-up scheduling. |
| Package | HVQFN48 (7 × 7 × 0.85 mm, exposed pad) - enables compact PCB layout with thermal efficiency for space-constrained industrial modules. |
Pinout & Package
HVQFN48 package with 48 terminals, 7 mm × 7 mm body, 0.85 mm height, and exposed thermal pad connected to VSS. Pin count and layout match NXP SOT619-28 specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIO0_0/ACMP0_A | Analog comparator input A / GPIO | Enables voltage threshold detection or digital I/O; requires ANAMODE=1 for analog use. |
| PIO0_9/ACMP0_B | Analog comparator input B / GPIO | Paired with PIO0_0 for differential comparison; supports internal reference selection. |
| PIO0_10/ADC0_1 | ADC channel 1 input / GPIO | Single-ended analog sensing path; shares pin with Flexcomm 6 clock and SWO trace output. |
| XTAL32K_P / XTAL32K_N | 32.768 kHz crystal oscillator inputs | Provide precise low-power RTC timing; support crystal or external clock source in bypass mode. |
| VDD / VDDA / VREFP | Core, analog, and ADC reference supplies | Separate power domains ensure clean analog measurements and stable digital operation. |
| RESETN | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with standard reset supervisor ICs. |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone® Security | Hardware-isolated secure/non-secure memory regions enable certified secure boot and runtime protection of cryptographic keys. |
| PRINCE Flash Encryption | Real-time AES-128 encryption/decryption of flash reads/writes prevents unauthorized firmware extraction or tampering. |
| SCTimer/PWM | State-configurable timer with 16 capture/match registers supports complex waveform generation for motor control or lighting drivers. |
| Programmable Logic Unit (PLU) | Configurable combinational/sequential logic replaces discrete glue logic, reducing BOM and enabling custom signal routing. |
| Multi-Rate Timer (MRT) | Four independent 24-bit timers generate fixed-rate interrupts for time-sliced task scheduling without CPU overhead. |
Applications
| Industrial PLC I/O Module | Smart Energy Metering |
|---|---|
Use Scenario: Real-time acquisition of current/voltage sensors and control of relay outputs in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Main controller executing deterministic ladder logic with sub-millisecond I/O response and secure firmware updates. Use Value: 7-channel 16-bit ADC enables simultaneous sampling of multiple CT/PT inputs; PRINCE encryption secures meter calibration data against tampering. | Use Scenario: Accurate energy consumption measurement and secure communication with utility gateways over RS-485 or NB-IoT modems. IC Role / Device Role / Timing Role: System-on-chip managing metrology calculations, secure key storage, and encrypted data transmission via UART-connected modem. Use Value: TrustZone® isolates metrology firmware from communication stack; RTC with 1 ms wake-up resolution enables precise billing interval timing. |
| Secure Access Control Panel | Medical Sensor Hub |
Use Scenario: Biometric authentication (fingerprint/facial) and door lock actuation in commercial building entry systems. IC Role / Device Role / Timing Role: Secure host processor validating credentials, managing encrypted credential storage, and driving solenoid locks. Use Value: ROM-based secure boot ensures only signed firmware executes; 30 GPIOs support direct interface to touch panels, LEDs, and lock drivers without expanders. | Use Scenario: Aggregation and preprocessing of ECG, SpO₂, and temperature signals before wireless transmission to central monitoring units. IC Role / Device Role / Timing Role: Low-power sensor fusion hub performing real-time filtering, peak detection, and secure data packaging. Use Value: 2.0 Msamples/sec ADC captures high-fidelity biosignals; deep-sleep modes with RTC wake-up extend battery life beyond 72 hours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC55S06JHI48 | Includes CASPER crypto accelerator, PUF, and CAN FD; identical flash/SRAM and package. | Required for ECC-based device attestation or automotive CAN FD networks. | Select when hardware-accelerated asymmetric crypto or CAN FD physical layer compliance is mandatory. |
| LPC5526JHI48 | Same core and peripherals but adds USB Full-Speed device controller and enhanced DMA capabilities. | Suitable for USB-connected diagnostic tools or firmware update dongles requiring host enumeration. | Choose if USB device interface is needed alongside secure boot and PRINCE encryption. |
Compared with LPC5506JHI48QL, LPC55S06JHI48 adds hardware crypto acceleration and CAN FD at no package or memory cost, while LPC5526JHI48 trades crypto acceleration for integrated USB device functionality-making LPC5506JHI48QL optimal for cost-sensitive, CAN 2.0–based secure control where asymmetric crypto is handled in software.
Availability
LPC5506JHI48QL is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, secure access control panels, and medical sensor hubs requiring stable component supply across extended temperature ranges (−40 °C to +105 °C).
Supply support for LPC5506JHI48QL 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.
The LPC5500 series targets cost-optimized, security-critical embedded control applications where full hardware crypto acceleration is unnecessary but PRINCE encryption and TrustZone® isolation remain essential.
FAQ
Does LPC5506JHI48QL support CAN FD?
No, LPC5506JHI48QL implements CAN 2.0 only. Unlike the LPC55S0x variants, it lacks the CAN FD controller and associated hardware enhancements. This is confirmed in Table 2 of the datasheet, which explicitly lists "CAN2.0" under the CAN FD column for LPC5506JHI48. Applications requiring CAN FD must use LPC55S06JHI48 or equivalent.
What is the maximum ADC sample rate supported by LPC5506JHI48QL?
LPC5506JHI48QL supports a maximum ADC sample rate of 2.0 Msamples/sec. This applies to its 16-bit successive approximation register (SAR) ADC with 7 single-ended input channels. Simultaneous conversions are supported only on differential pairs, but the HVQFN48 variant provides 7 single-ended channels without differential pairing capability per the datasheet's Table 2.
Is the PUF (Physical Unclonable Function) available on LPC5506JHI48QL?
No, PUF is not available on LPC5506JHI48QL. Table 2 confirms PUF Controller is marked "-" for all LPC550x parts, including LPC5506JHI48QL. Only LPC55S0x variants (e.g., LPC55S06JHI48) include the PUF module for silicon fingerprinting and hardware key generation.
How many Flexcomm interfaces does LPC5506JHI48QL support?
LPC5506JHI48QL supports up to 7 Flexcomm interfaces (Flexcomm 0–6), as specified in the datasheet note on page 7. Each can be configured as UART, I²C, SPI, or I²S. Flexcomm 7 is not available in the HVQFN48 package, unlike the HTQFP64 variant which supports up to 8.
What debug interfaces are available on LPC5506JHI48QL?
LPC5506JHI48QL supports Serial Wire Debug (SWD) via pins PIO0_2/TRST, PIO0_3/TCK, PIO0_4/TMS, PIO0_5/TDI, and PIO0_6/TDO. JTAG boundary scan is also supported, but SWD is the primary debug interface. SWO trace output is available on PIO0_8, enabling real-time instruction tracing without additional pins.
LPC5506JHI48QL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- LPC550x
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit Single-Core
- Speed:
- 96MHz
- Connectivity:
- CAN FD, Flexcomm, I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, RNG, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 7x16b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
LPC5506JHI48QL FAQ
1.How can I place an order for LPC5506JHI48QL through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC5506JHI48QL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LPC5506JHI48QL reliable?
The price and inventory of LPC5506JHI48QL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC5506JHI48QL is usually 5 days.
3.What payment methods are accepted for LPC5506JHI48QL?
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4.How is shipping managed for LPC5506JHI48QL?
LPC5506JHI48QL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC5506JHI48QL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LPC5506JHI48QL?
For technical support, including LPC5506JHI48QL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC5506JHI48QL requirements.
6.How does Aetrix verify that LPC5506JHI48QL is sourced from the original manufacturer or authorized distributors?
All LPC5506JHI48QL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LPC5506JHI48QL meets industry standards.
7.What is the process for return or replacement of LPC5506JHI48QL?
All LPC5506JHI48QL units undergo pre-shipment inspection (PSI). If there is an issue with LPC5506JHI48QL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LPC5506JHI48QL part is unused and in its original packaging.
Return procedure for LPC5506JHI48QL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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