NXP Semiconductors LPC4315JBD144E

Overview

LPC4315JBD144E from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller with 768 kB flash (384 kB per bank), 136 kB SRAM, no Ethernet or LCD controller, and operates up to 204 MHz. It integrates two 10-bit ADCs (8 channels total), one 10-bit DAC, motor control PWM, QEI, USB0 host/device (no OTG), and supports industrial temperature range (−40 °C to +105 °C) in LQFP144 package for motor control and embedded power management systems.

For engineers reviewing the LPC4315JBD144E datasheet, LPC4315JBD144E pinout, LPC4315JBD144E application, or LPC4315JBD144E equivalent, key selection considerations include its dual-core architecture, absence of Ethernet/LCD, fixed 768 kB flash split, 83 GPIO pins, and support for high-speed USB0 with on-chip PHY - critical for real-time motor control and industrial I/O consolidation.

Technical Context

The LPC4315JBD144E implements an asymmetric dual-core architecture: the Cortex-M4F core handles real-time signal processing and floating-point computation at up to 204 MHz, while the Cortex-M0 co-processor offloads peripheral management and deterministic I/O handling. Both cores share access to the AHB multilayer matrix and dedicated SRAM blocks.

Its memory subsystem includes dual-bank flash (384 kB each) enabling safe firmware updates via bank switching, 136 kB SRAM distributed across multiple AHB-accessible blocks (including 32 kB AHB SRAM and 40 kB local SRAM), and 16 kB EEPROM. Peripheral connectivity centers on USB0 (HS host/device with on-chip PHY), SPIFI, EMC, SCTimer/PWM, GIMA, and dual ADC/DAC - all accessible without Ethernet or LCD hardware.

Key Specifications

Pinout & Package

Package: LQFP144 (20 × 20 × 1.4 mm, SOT486-1), 144-pin plastic low-profile quad flat package with exposed thermal pad (not electrically connected). Pin 1 marked by dot or beveled corner; standard 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPC4333JBD144 and LPC4325JBD144, the LPC4315JBD144 uniquely balances 768 kB flash, full motor control PWM, and integrated USB0 HS PHY - making it optimal for cost-sensitive, space-constrained motor gateways where deterministic dual-core execution and self-contained USB connectivity are mandatory.

Availability

LPC4315JBD144E is available at Aetrix Electronics and suitable for motor control, industrial power management, embedded audio gateways, and e-metering applications requiring stable component supply, long-term lifecycle assurance, and extended temperature operation.

Supply support for LPC4315JBD144E 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The LPC4300 series was designed for high-performance embedded control applications demanding real-time determinism, dual-core flexibility, and rich analog/digital peripheral integration - particularly where functional safety, firmware resilience, and mixed-signal precision are critical.

FAQ

What is the maximum operating frequency of the LPC4315JBD144E?

The LPC4315JBD144E operates at a maximum CPU frequency of 204 MHz for both the ARM Cortex-M4F and Cortex-M0 cores. This frequency is achieved using the on-chip PLLs fed from the 12 MHz internal RC oscillator (trimmed to ±3 % accuracy) or an external crystal (1 MHz–25 MHz). The LPC4315JBD144E maintains this performance across its full industrial temperature range (−40 °C to +105 °C).

Does the LPC4315JBD144E include Ethernet or LCD controller hardware?

No, the LPC4315JBD144E does not include Ethernet MAC or LCD controller hardware. Per NXP's official ordering table (Table 2), "Ethernet" and "LCD" columns are marked "no" for this part number. This distinguishes it from higher-tier variants like LPC4357 and confirms its targeting toward cost-optimized, non-networked embedded control applications.

How much SRAM and flash memory does the LPC4315JBD144E have?

The LPC4315JBD144E integrates 136 kB of on-chip SRAM and 768 kB of flash memory (split evenly into two 384 kB banks). This SRAM includes 32 kB AHB SRAM, 40 kB local SRAM, and additional AHB-accessible blocks. The dual-bank flash architecture supports robust firmware updates with zero downtime via bank switching and vector table remapping.

What USB capabilities does the LPC4315JBD144E support?

The LPC4315JBD144E supports one High-speed USB 2.0 interface (USB0) in host/device mode with an integrated on-chip high-speed PHY - no external transceiver required. It does not support USB OTG or the second USB interface (USB1), which is disabled in this variant. USB0 includes DMA support and ROM-resident USB stack software for rapid implementation.

Is the LPC4315JBD144E pin-compatible with other LPC43xx LQFP144 variants?

Yes, the LPC4315JBD144E shares the same LQFP144 (SOT486-1) package and pinout with other LPC43xx parts in that footprint, including LPC4333JBD144, LPC4325JBD144, and LPC4313JBD144. All use identical mechanical dimensions, pad layout, and signal assignment per pin - enabling direct PCB reuse when migrating within the LQFP144 family, provided peripheral usage aligns with the target part's feature set.