NXP Semiconductors LPC5514JBD64E

Overview

LPC5514JBD64E from NXP Semiconductors is an Arm Cortex-M33 microcontroller with TrustZone security, 128 KB flash, 80 KB SRAM, PRINCE flash encryption, CASPER crypto co-processor, and CAN FD interface - deployed in secure industrial gateways requiring real-time control, encrypted firmware updates, and multi-protocol connectivity.

For engineers reviewing the LPC5514JBD64E datasheet, LPC5514JBD64E pinout, LPC5514JBD64E application, or LPC5514JBD64E equivalent, key selection criteria include its HTQFP64 package, 150 MHz CPU clock, USB full-speed + high-speed support, 36 GPIOs, and absence of PUF/TrustZone hardware (vs. LPC55S1x variants).

Technical Context

The LPC5514JBD64E implements a dual-bus AHB matrix architecture with separate code and system buses, enabling concurrent flash access and peripheral DMA transfers. It integrates two DMA controllers (23-channel DMA0 and 10-channel DMA1), a programmable logic unit (PLU), and five 32-bit general-purpose timers with capture/compare/PWM capability.

Its analog subsystem includes a 16-bit 2.0 Msamples/sec ADC with simultaneous differential conversion, integrated temperature sensor, and comparator with internal/external reference selection. Clocking relies on multiple oscillators: 96 MHz FRO (±2% over –40°C to +105°C), 32 kHz FRO, 1 MHz low-power FRO, and external crystal options up to 32 MHz.

Key Specifications

Pinout & Package

HTQFP64 package with 64 leads, 10 mm × 10 mm body, 0.5 mm pitch, and exposed thermal pad (pin 64). Pin numbering follows standard counter-clockwise convention starting from top-left corner (pin 1 marked by dot or bevel).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC5514JBD64E, LPC55S14JBD64 adds silicon-rooted security primitives essential for certified secure boot, while LPC5524JBD64 extends memory and peripheral count for more complex deterministic control tasks - both retain the same HTQFP64 footprint and core architecture.

Availability

LPC5514JBD64E is available at Aetrix Electronics and suitable for industrial automation, smart metering, and automotive diagnostics requiring stable component supply, extended temperature operation (–40°C to +105°C), and long-term manufacturing continuity.

Supply support for LPC5514JBD64E 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 LPC551x product line targets cost-optimized, secure embedded control applications where hardware-based security extensions (PUF/TrustZone) are optional - delivering robust real-time performance and cryptographic acceleration without premium security silicon.

FAQ

What is the maximum operating frequency of the LPC5514JBD64E?

The LPC5514JBD64E operates at up to 150 MHz using its Arm Cortex-M33 core. This frequency is achievable with the internal 96 MHz Free Running Oscillator (FRO) scaled via PLL, or directly from an external crystal up to 32 MHz. The FRO is trimmed to ±2% accuracy across –40°C to +105°C, ensuring reliable timing in industrial environments without requiring external precision oscillators. All timing-critical peripherals - including the 16-bit ADC and CAN FD controller - are fully functional at this maximum clock rate.

Does the LPC5514JBD64E support secure boot functionality?

Yes, the LPC5514JBD64E supports secure boot using RSASSA-PKCS1-v1_5 signatures over SHA256 digests, RSA-2048/4096 public keys, and x.509 certificate validation. However, it lacks the PUF and TrustZone hardware blocks found in the LPC55S1x series. Its secure boot relies on PRINCE-encrypted flash regions and ROM bootloader verification - sufficient for authenticated firmware loading but not for dynamic key derivation or hardware-enforced secure world isolation. The LPC5514JBD64E implements the same ROM API functions and SB2 file format support as its S-series counterparts.

How many GPIO pins does the LPC5514JBD64E provide in the HTQFP64 package?

The LPC5514JBD64E provides 36 GPIO pins in the HTQFP64 package. This count is confirmed in Table 2 of the datasheet, which explicitly lists "36" under the GPIO column for all JBD64 variants (LPC55S14JBD64, LPC5514JBD64, etc.). These pins support multiple configurable functions including ADC inputs, comparator channels, Flexcomm interfaces, and secure GPIO operation. Pin multiplexing is managed via IOCON registers, and up to eight can be configured as pin interrupts (PINT) with rising/falling/both-edge sensitivity.

What USB capabilities does the LPC5514JBD64E offer?

The LPC5514JBD64E integrates both USB 2.0 full-speed (12 Mbps) and high-speed (480 Mbps) host/device controllers with on-chip PHYs. It supports crystal-less operation in full-speed device mode using the internal 96 MHz FRO, eliminating the need for an external 12 MHz crystal. The USB subsystem includes dedicated DMA controllers, USB SRAM (16 KB), and HID-class device support in the ROM bootloader - enabling direct firmware updates via standard USB mass storage or custom HID interfaces without external USB transceivers or host controllers.

Is the LPC5514JBD64E pin-compatible with other LPC55xx devices in HTQFP64?

Yes, the LPC5514JBD64E is pin-compatible with all other LPC55xx devices offered in the HTQFP64 package (e.g., LPC55S14JBD64, LPC5524JBD64, LPC5516JBD64). Pin assignments, power domains, and peripheral mappings are identical across this package variant - allowing drop-in replacement in existing designs. Differences lie in internal feature enablement (e.g., PUF presence, flash size, CAN FD channel count), not pin function or electrical characteristics. This compatibility simplifies migration paths and inventory consolidation for design teams scaling security or memory requirements.