LPC1825JBD144E - 180MHz Cortex-M3 MCU, 768KB Flash, LQFP-144 | NXP
料号： LPC1825JBD144E ✓ 量产中LPC1825JBD144E 概述
A microcontroller (MCU) is a single integrated circuit that contains a processor core, embedded memory and a set of peripheral blocks on one die. The NXP LPC18xx family sits in the hierarchy embedded processor -> 32-bit microcontroller -> Arm Cortex-M3 MCU -> NXP LPC18xx series. Arm Cortex-M3 cores combine a compact 32-bit instruction set with low power consumption, enhanced debug features and a high level of support-block integration, which makes them the standard choice for industrial, automotive-adjacent and consumer embedded control.
Key features of the LPC1825JBD144E include a 180 MHz maximum CPU frequency, a three-stage pipeline, 768 kB of flash for firmware and constants, and 136 kB of SRAM for working memory and data buffers. The generous SRAM figure is unusual for a Cortex-M3 part and supports USB host or device buffering, DMA transfers and display framebuffer work without external memory. The 144-pin LQFP footprint exposes the full complement of GPIO, communication and timer resources while remaining compatible with standard 0.5 mm-pitch LQFP144 assembly.
Technically, the part belongs to a family whose members run at CPU frequencies of up to 180 MHz using a three-stage pipeline, and the family documentation highlights low power consumption, enhanced debug capabilities and a high level of support-block integration. That combination shortens interrupt latency for protocol handling and keeps a single core sufficient for gateway-class products that combine USB, serial and control functions.
Typical applications include industrial control and factory automation nodes, USB host hubs and peripheral gateways, building and energy management controllers, test and measurement front-ends, human-machine interface panels, and motor or stepper motion control boards where the LQFP144 pin count is required for parallel I/O.
When designing around this MCU, budget the 20 x 20 mm LQFP144 land pattern carefully, place decoupling capacitors adjacent to every supply pin group, and confirm the ground-return path under the die because the exposed perimeter leads carry thermal current into the board rather than into a dedicated pad.
This page consolidates manufacturer and distributor part data, drop-in LQFP144 alternatives from the same NXP family, parameter-by-parameter comparison, and practical layout and thermal notes that a datasheet alone does not present in decision-ready form.
直接替换替代料： LPC1825JBD144E ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LPC1825JBD144E （相同外形与封装尺寸） ——差异在于 Package, Flash Memory, SRAM, Architecture, CPU Architecture.
LPC1825JBD144
✅ 直接替换📋 参考替代料（不在目录中）
LPC1857JBD144E
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LPC1837JBD144E
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LPC1833JBD144E
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LPC1813JBD144E
✅ 直接替换联系询价
查看数据手册 →LPC1830FBD144K
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LPC1825JBD144E 最大额定值与电气特性
| Core Processor | Arm Cortex-M3 |
| CPU Frequency | 180 MHz maximum |
| Architecture | 32-bit ARM |
| Flash Memory | 768 kB (768K x 8) |
| SRAM | 136 kB |
| Pipeline | 3-stage |
| 封装 | LQFP-144 (20 x 20 mm) |
| 安装类型 | Surface Mount |
| Device Category | 32-bit Microcontroller IC (MCU) |
| Series | LPC18xx (LPC185x/3x/2x/1x family) |
| Family Max Frequency | Up to 180 MHz |
| Core Highlights | Low power consumption, enhanced debug features, high level of support block integration |
| Number of I/O Pins | 144 |
LPC1825JBD144E lqfp-144 (20 x 20 mm) 引脚配置指南
LPC1825JBD144E（lqfp-144 (20 x 20 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： LPC1825JBD144E.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LPC1825JBD144E 适用于 6 应用s: Industrial Control and Automation Node, USB Host Hub and Peripheral Gateway, Building and Energy Management Controller, Human-Machine Interface and Display Panel Controller, Test and Measurement Front-End, Motor and Stepper Motion Control Board.
Industrial Control and Automation Node
The LPC1825JBD144E suits factory floor control nodes that need deterministic real-time handling plus generous memory in a single part. At 180 MHz with a three-stage pipeline, the Cortex-M3 core keeps interrupt latency low enough for closed-loop digital control, while 136 kB of SRAM allows multi-axis PID state, fieldbus frame buffers and logging to coexist without external memory. The 144-lead LQFP (20x20 mm) exposes the full GPIO set, timer and serial resources needed for encoder inputs, discrete I/O expansion and isolated serial links on the same board, and the 768 kB flash comfortably holds an RTOS plus protocol stacks.
推荐
USB Host Hub and Peripheral Gateway
Because the LPC1825JBD144E combines 768 kB of flash with 136 kB of SRAM at 180 MHz, it can act as a USB host controller, port expander or protocol bridge without offloading buffering to external memory. The large SRAM budget is the decisive factor here: USB bulk transfers and protocol translation need working buffers far larger than typical Cortex-M3 devices offer, and the 768 kB flash leaves room for a USB stack, composite device descriptors and a bootloader in one image. The 144-pin LQFP provides the parallel host signals, DMA-capable peripherals and multiple UART/SPI channels required for bridging USB to fieldbus or storage.
推荐
Building and Energy Management Controller
HVAC, lighting and metering controllers benefit from the LPC1825JBD144E because they must aggregate many slow but numerous inputs while still meeting a strict standby budget. The Cortex-M3 core handles protocol housekeeping and timestamped data logging from multiple UART, SPI and I2C sensors, while the 768 kB flash stores calibration tables, time schedules and firmware update images with headroom for dual-bank boot. The 144-pin LQFP (20x20 mm) footprint gives access to the wide GPIO and timer counts that relay banks, triac drivers and metering front-ends demand, and its low-power family characteristics help hold quiescent current down in meters and thermostats.
推荐
Human-Machine Interface and Display Panel Controller
A panel controller built around the LPC1825JBD144E must drive displays, read capacitive or resistive touch input and keep a UI responsive, which is exactly where 136 kB of SRAM and 180 MHz of Cortex-M3 performance pay off. Framebuffer segments, font caches and touch controller buffers can be held internally, so the design avoids an external SDRAM interface and its associated layout and cost. The 144-pin LQFP package supplies the parallel LCD data lines, multiple SPI/serial display channels and the timer channels needed for backlight dimming and keypad scanning, all while remaining on a standard 0.5 mm-pitch land pattern.
推荐
Test and Measurement Front-End
Instrument front-ends need fast, deterministic control of analog and digital peripherals while streaming data to a host, and the LPC1825JBD144E fits that role through 180 MHz Cortex-M3 performance with 136 kB of on-chip SRAM for capture buffers. Acquisition data can be staged in internal memory before DMA transfer, cutting the complexity and pin pressure of a parallel FIFO interface. The 144-lead LQFP also exposes the timer channels, comparators, ADC resources and general GPIO needed to orchestrate stimulus sequencing, relay matrices and trigger lines, all inside a single instrument-grade package family with wide availability.
推荐
Motor and Stepper Motion Control Board
The LPC1825JBD144E addresses motion control boards that must run current control loops, position tracking and host communication simultaneously. A 180 MHz Cortex-M3 core with a three-stage pipeline gives fast loop iteration, and 136 kB of SRAM is sufficient for multi-axis trajectory buffers and encoder capture without external RAM. The 144-pin LQFP (20x20 mm) provides the PWM outputs, encoder interfaces, capture timers and communication ports that a multi-axis stepper or brushless driver board needs, while the 768 kB flash holds motion algorithms, field-upgradeable firmware and diagnostic logging in a single image.
推荐
推荐产品汇总
工程参考数据： LPC1825JBD144E ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LPC1825JBD144 | LPC1857JBD144E | LPC1837JBD144E | LPC1833JBD144E | LPC1813JBD144E | LPC1830FBD144K |
|---|---|---|---|---|---|---|---|
| Package | LQFP-144 (20x20 mm) | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same | LQFP-144 (20x20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Processor | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 |
| Maximum CPU Frequency | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 100 MHz class | 100 MHz class | 100 MHz |
| Flash Memory | 768 kB (768K x 8) | 768 kB | 1 MB class | 512 kB class | 512 kB class | 512 kB | 128 kB |
| SRAM | 136 kB | 136 kB | 128 kB class | 128 kB class | 128 kB class | 64 kB | 16 kB |
| Pipeline | 3-stage | 3-stage | 3-stage | 3-stage | 3-stage | 3-stage | 3-stage |
关键差异点
- Largest SRAM in the 144-pin LQFP Cortex-M3 family grouping used here （对比 LPC1813JBD144E)
- Highest clock class combined with full 768 kB flash in one 144-pin part （对比 LPC1833JBD144E)
- Exact orderable sibling with no firmware or layout impact （对比 LPC1825JBD144)
- Lower memory ceiling avoided versus the entry-level 144-pin member （对比 LPC1830FBD144K)
设计说明
Treat the LQFP-144 (20 x 20 mm, 0.5 mm pitch) land pattern as a routing constraint from day one. With 144 leads at 0.5 mm pitch, escape routing from inner pins to a breakout area needs either a via fan-out or two-layer escape before the second signal layer, and the 0.5 mm pitch leaves only about 0.25 mm of copper between adjacent pads for the solder mask dam. Verify the exact pad geometry against the manufacturer package drawing in your CAD library, and confirm that the assembly house supports 0.5 mm-pitch LQFP144 before committing to the layout.
Place the bulk and high-frequency decoupling capacitors directly between each supply pin or supply group and its nearest ground reference, with the smallest ceramic capacitor first. A 100 nF X7R device should sit within about 2 mm of each supply pin to form a short, low-inductance loop, and a bulk bulk capacitor of a few microfarads should be placed near the regulator entry point. Estimated: with an assumed 5 V rail and a 3.5 V total drop at 200 mA average, dissipation is about 0.7 W, which is spread across the perimeter leads rather than a thermal pad, so keep the ground plane continuous under the device.
The LQFP-144 package has no exposed thermal pad, so heat leaves through the 144 perimeter leads into the board copper. Estimated: at 180 MHz with 768 kB flash executing from flash cache misses, roughly 0.5 W to 1.0 W of internal dissipation can occur; with about 1 W and a 144-lead package, this is generally manageable on a 2-layer board only if a solid ground and power plane sit directly beneath the die, but a 4-layer board with a dedicated ground plane markedly improves the temperature rise. Route thermal copper into the ground plane region under the package and keep thermal vias outside the fine-pitch escape area.
Keep high-speed and high-current paths short and separated from sensitive analog inputs, and provide a solid, uninterrupted ground reference for every analog pin. Separate the 180 MHz clock routing from USB data pairs and serial lines, and avoid routing clock and data over split plane boundaries; if the board has more than two layers, reference high-speed pairs to a continuous plane rather than to a plane split that changes reference impedance underneath the trace. Where the design mixes USB or Ethernet traffic with an ADC front-end, group the analog section, provide its own ground pour and use a single controlled connection point back to the digital ground.
Two substitution mistakes are common on this family. First, moving from LPC1825JBD144E to a lower-flash member such as LPC1830FBD144K can break the build if the linker script or bootloader assumes 768 kB of flash and 136 kB of SRAM, even though the footprint matches exactly. Second, assuming a suffix-only difference between LPC1825JBD144 and LPC1825JBD144E means identical temperature behaviour is unsafe; confirm the grade limits in the ordering information before using either part in an extended-temperature design, and re-validate the USB, Ethernet and clock-tree configuration after any family swap.
合规信息
No explicit compliance declarations were identified for this exact orderable variant; the manufacturer part page for LPC1825JBD144 should be checked for the current declarations and terminal information before release to production.
