LPC1815JBD144E - 180MHz Cortex-M3 MCU | NXP | LQFP-144
MPN: LPC1815JBD144E ✓ ActiveLPC1815JBD144E Overview
An Arm Cortex-M3 microcontroller is a 32-bit embedded processor that combines a deterministic interrupt architecture with low-power sleep modes and extensive peripheral integration. The Cortex-M3 core sits within the broader hierarchy of embedded processors, microcontrollers, and semiconductor components. The LPC1815 family is designed to control industrial, communications, consumer, and instrumentation products while reducing the need for external memory and support devices.
The principal device resources include a 180 MHz maximum clock, 768 KB of program flash, and 136 KB of SRAM. Its large LQFP-144 package exposes substantially more I/O than a small-lead package, allowing a design to allocate pins to communication interfaces, timers, analog functions, and control signals. The package and pin availability also make the device suitable for multilayer boards where routing density must be balanced against assembly complexity. Exact peripheral counts, voltage limits, and temperature limits must be confirmed in the NXP datasheet before schematic release.
The Cortex-M3 architecture supports efficient handling of control loops, communications stacks, and interrupt-driven peripherals. Program storage is large enough for substantial application code, boot logic, protocol handlers, and configuration data, while the 136 KB SRAM provides working memory for buffers and real-time tasks. Engineers should still evaluate the worst-case RAM requirement of the selected middleware and allocate stack space separately from nominal application variables.
Typical uses include industrial automation controllers, communications equipment, data-acquisition systems, motor and motion control, and embedded gateways. The 180 MHz processing capability supports responsive protocol handling and control tasks, while the 144-pin package provides access to a broad peripheral complement. A switching supply, signal-conditioning circuitry, isolation barriers, and protection devices should be selected around the MCU according to the application environment.
For PCB implementation, use a multilayer layout with a continuous ground plane, short decoupling connections at each supply pin, and controlled return paths for high-speed or sensitive signals. Follow the NXP package drawing, land pattern, and recommended decoupling network exactly. Validate programming, clock, reset, and boot configurations on hardware before production, especially when an existing board is being adapted around the LPC1815JBD144E.
This page combines the confirmed processor, memory, package, and sourcing details with practical considerations for firmware, layout, validation, and component selection. It also distinguishes confirmed drop-in family options from cross-brand replacements that require separate electrical and software qualification.
Drop-in alternatives for LPC1815JBD144E — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LPC1815JBD144E (same form factor and footprint) — differing in Package, Flash Memory, LCD Interface.
LPC1813JBD144E
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →LPC1817JBD144E
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →LPC1830FBD144K
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →LPC1853JBD144E
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LPC1857JBD144E
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LPC1815JBD144E Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M3 Microcontroller |
| Maximum CPU Frequency | 180 MHz |
| Flash Memory | 768 KB |
| SRAM | 136 KB |
| CPU Architecture | ARM Cortex-M3 |
| Word Size | 32 bit |
| Package | 144-LQFP (20 x 20 mm) |
| Pin Count | 144 pins |
| Mounting Type | Surface Mount |
LPC1815JBD144E 144-lqfp (20 x 20 mm) Pin Configuration Guide
Pin configuration for LPC1815JBD144E (144-lqfp (20 x 20 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for LPC1815JBD144E.
Refer to the datasheet for full pin configuration.
Typical Applications
LPC1815JBD144E is suitable for 6 applications: Industrial Automation Controller, Industrial Communications Gateway, Data Acquisition and Control, Motor and Motion Control, Embedded HMI and Panel Controller, Secure Network Appliance Controller.
Industrial Automation Controller
The LPC1815JBD144E fits industrial automation control when a design needs more processing capacity and memory than a compact microcontroller provides. Its confirmed 180 MHz Cortex-M3 performance supports responsive control loops, while 768 KB of flash accommodates control software, communications stacks, diagnostics, and update logic. The 136 KB of SRAM provides working space for real-time buffers. The 144-pin LQFP also offers extensive pin availability for encoders, sensors, isolated communications, actuators, and digital status signals. Confirm the exact peripheral assignments, operating voltage, and industrial temperature requirements in the NXP manufacturer datasheet before freezing the schematic.
Recommended
Industrial Communications Gateway
The LPC1815JBD144E is appropriate for communications gateways that must aggregate local serial data, run protocol stacks, and maintain predictable control response. The 180 MHz Cortex-M3 core provides substantial instruction throughput, and the 768 KB flash capacity reduces the need for external program memory. Its 136 KB SRAM supports packet buffers and protocol state, while the 144-pin package can expose multiple communications and service interfaces. Board design should isolate noisy digital activity, provide proper clock and reset conditioning, and validate timing against the selected communications transceiver and connector standards.
Recommended
Data Acquisition and Control
The LPC1815JBD144E can serve as the central controller in a data-acquisition system that combines analog measurement, digital control, and communications. Its confirmed 180 MHz operation is useful for sampling orchestration, filtering, calibration handling, and host data transfer. The 768 KB of flash and 136 KB of SRAM provide sufficient resources for moderate buffering and protocol code without requiring external memory. The 144-pin LQFP offers a broad pin budget for sensor inputs and digital controls, but designers should verify ADC characteristics, acquisition timing, and pin multiplexing directly in the NXP manufacturer datasheet.
Recommended
Motor and Motion Control
The LPC1815JBD144E fits motor-control and motion-control boards requiring a fast control processor, substantial firmware storage, and many I/O resources. The 180 MHz Cortex-M3 core can execute current-loop or motion-control algorithms alongside supervisory logic, while 768 KB of flash holds algorithms, parameter tables, and communications code. Its 144-pin package can support encoder inputs, PWM outputs, fault signals, and external communications. Validate timer resolution, motor-control peripherals, pin assignments, and timing margins in the NXP manufacturer datasheet because a package match alone does not preserve every peripheral function.
Recommended
Embedded HMI and Panel Controller
The LPC1815JBD144E can control a human-machine interface panel by combining display, touch, keypad, and communications management on one processor. The 180 MHz Cortex-M3 core handles graphical and control tasks, and 768 KB of flash accommodates interface firmware, fonts, configuration, and update logic. The 136 KB of SRAM supports display and input buffers, while the 144-pin package provides enough connections for panel peripherals. The design must account for display-bus timing, ESD protection, backlight control, connector pinout, and ground partitioning rather than treating the MCU as an isolated logic block.
Recommended
Secure Network Appliance Controller
The LPC1815JBD144E is suitable for a secure embedded appliance that requires local networking, policy processing, and hardware-assisted security functions. Its confirmed 768 KB flash and 136 KB SRAM support protocol services, packet processing, and secure firmware logic, while the 180 MHz core allows responsive protocol handling. The large LQFP-144 package can expose Ethernet, serial, storage-control, and administration interfaces. For a production design, verify the device security block, cryptographic interfaces, boot behavior, peripheral availability, and environmental limits in the NXP manufacturer datasheet before selecting companion transceivers.
Recommended
Recommended Products Summary
Engineering reference data for LPC1815JBD144E — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LPC1813JBD144E | LPC1817JBD144E | LPC1830FBD144K | LPC1853JBD144E | LPC1857JBD144E |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20 x 20 mm) | 144-LQFP (20 x 20 mm) - same footprint | 144-LQFP (20 x 20 mm) - same footprint | 144-LQFP (20 x 20 mm) - same footprint | 144-LQFP (20 x 20 mm) - same footprint | 144-LQFP (20 x 20 mm) - same footprint |
| CPU Core | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 |
| Temperature Grade | E grade; exact range requires datasheet confirmation | E grade; exact range requires datasheet confirmation | E grade; exact range requires datasheet confirmation | K grade; exact range requires datasheet confirmation | E grade; exact range requires datasheet confirmation | E grade; exact range requires datasheet confirmation |
Key Differentiators
- Higher confirmed maximum CPU frequency (vs LPC1830FBD144K)
- Larger confirmed flash memory (vs LPC1830FBD144K)
- Substantially larger working memory (vs LPC1813JBD144E)
- Connectivity-focused alternatives add specialized resources (vs LPC1857JBD144E)
Design Notes
Assign every supply pin according to the NXP manufacturer datasheet and provide the recommended local bypass capacitance directly at the package pins. Separate core and I/O supplies where the device permits independent voltage selection, and account for startup sequencing when both rails are present. Confirm maximum operating frequency at the selected voltage and temperature instead of assuming that the 180 MHz headline rate applies across all power states.
Use the official LQFP-144 land pattern and keep each decoupling capacitor within a few millimeters of its associated supply pin. Maintain a continuous ground plane beneath the device, use short return paths for high-speed and analog signals, and route clock and reset traces away from switching nodes. Because a 144-pin footprint has dense fanout, check the assembler's pin-1 orientation and paste stencil against the NXP package drawing before releasing artwork.
Terminate unused pins exactly as directed in the NXP manufacturer datasheet and do not leave clock, reset, or high-impedance inputs floating. If the board carries Ethernet, USB, or other high-speed interfaces, preserve controlled return paths beneath each trace and avoid splitting the ground plane unnecessarily. Validate rise time, ringing, and crosstalk with an oscilloscope because the MCU's processing speed does not by itself guarantee clean signal integrity at the board edge.
A shared package does not make every LPC18xx member a functional substitute. Compare flash size, SRAM, maximum clock, temperature grade, Ethernet and USB availability, pin multiplexing, and driver support before releasing a replacement. After substitution, rebuild the project with the correct startup code and device configuration, then repeat clock, peripheral, brownout, communication, and full-temperature testing. Update the silk screen, BOM, and production test procedure as well.
Compliance Information
The product information shown on this page does not state material-compliance declarations or automotive qualification for the exact ordering code. Verify current declarations and qualification records with NXP before release.