LPC11A02UK - 50MHz ARM Cortex-M0 MCU | NXP | WLCSP-20
料号： LPC11A02UK ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LPC11A02UK 概述
A microcontroller is a programmable system-on-chip that integrates a processor core, memory, and peripherals into one component. The LPC11A02UK belongs to the LPC11Axx family of low-cost 32-bit MCUs and uses the Arm Cortex-M0 architecture, which provides a compact instruction set for responsive embedded control. Its 16 kB Flash supports firmware storage, while its 4 kB SRAM provides working memory for control routines and data buffers.
Key features include operation up to 50 MHz, a 1-bit ADC, a 10-bit DAC, an analog comparator, a temperature sensor, an internal voltage reference, and under-voltage lockout protection. The verified distributor information identifies the device as a WLCSP-20 packaged microcontroller with 18 I/O ports and a supply voltage range of 2.6 V to 3.6 V. These features allow the MCU to support sensing, actuator control, monitoring, and low-speed communication tasks within a compact embedded design.
The LPC11A02UK uses a 32-bit Arm Cortex-M0 processor and is positioned as a low-cost member of the LPC11Axx microcontroller family. The Cortex-M0 core is suitable for deterministic, compact embedded-control code where simplicity, low silicon cost, and compact packaging matter. The device combines digital control with configurable analog and mixed-signal peripherals, allowing one MCU to supervise sensors, drive outputs, and manage local system conditions.
Typical applications include battery-powered sensor nodes, compact industrial monitoring modules, consumer accessories, small motor-control subsystems, and embedded control boards. The 20-WLCSP package is especially useful where PCB area is constrained. Designers should confirm the exact ball map, exposed-pad requirements, supported peripherals, and pin multiplexing against the manufacturer datasheet before laying out a new PCB or replacing another device.
This page consolidates verified manufacturer and distributor information, package details, application guidance, and purchasing considerations. Pricing and availability can change by quantity and supplier, so procurement should be confirmed against current distributor listings. For replacements, pin compatibility and peripheral equivalence must be verified rather than inferred from the family name alone.
The LPC11A02UK is an active NXP product suitable for engineers seeking a compact Arm Cortex-M0 controller with integrated sensing and monitoring functions. Its principal trade-offs are small package availability, limited memory compared with larger MCUs, and the need for careful board-level validation around the 20-WLCSP footprint.
直接替换替代料： LPC11A02UK ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
LPC11A02UK,118
✅ 直接替换📋 参考替代料（不在目录中）
LPC11A02UK
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LPC11A02UK,118
✅ 直接替换📋 参考替代料（不在目录中）
LPC11A02UK,118
✅ 直接替换📋 参考替代料（不在目录中）
LPC11A02UK
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LPC11A02UK 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M0 microcontroller |
| CPU Frequency | Up to 50 MHz |
| Flash Memory | 16 kB |
| SRAM | 4 kB |
| 电源电压 | 2.6 V to 3.6 V |
| I/O Ports | 18 |
| ADC | 1-bit ADC |
| DAC | 10-bit DAC |
| Analog Comparator | Included |
| Temperature Sensor | Included |
| Internal Voltage Reference | Included |
| Under-Voltage Lockout | UVLO protection included |
| 封装 | 20-WLCSP |
| Package Dimensions | 2.50 x 2.50 mm, 0.60 mm height |
| Terminal Form | Ball |
| Processor Architecture | Arm Cortex-M0 |
| 生命周期状态 | Active |
LPC11A02UK 2.50 x 2.50 mm, 0.60 mm height 引脚配置指南
LPC11A02UK（2.50 x 2.50 mm, 0.60 mm height 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： LPC11A02UK.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LPC11A02UK 适用于 6 应用s: Battery-Powered Sensor Node, Industrial Condition Monitoring, Compact Consumer Accessory, Small Embedded Control Module, Battery Management Support, Portable Measurement Device.
Battery-Powered Sensor Node
The LPC11A02UK fits compact battery-powered sensor nodes because its 50 MHz Arm Cortex-M0 core provides responsive control while the 20-WLCSP package preserves PCB area. The verified feature set includes a temperature sensor, internal voltage reference, analog comparator, and UVLO protection, enabling local sensing, threshold comparison, and supply monitoring without adding a separate analog system. The 16 kB Flash can hold application firmware and 4 kB SRAM can support working state, buffers, and control variables. Designers should confirm low-power mode currents and wake-up behavior in the exact datasheet before estimating battery life, because those values are not included in the supplied data.
推荐
Industrial Condition Monitoring
LPC11A02UK is suitable for compact industrial condition-monitoring modules that combine sensor acquisition, threshold logic, and local diagnostics. Its 18 I/O ports provide flexibility for digital inputs, status indicators, and external control signals, while the integrated comparator and internal voltage reference can support local threshold detection. The 50 MHz Cortex-M0 core is suitable for coordinating sampling routines, filtering, fault flags, and communication tasks. Its 16 kB Flash and 4 kB SRAM may be sufficient for focused monitoring logic, but applications requiring extensive history, high-resolution conversion, or multiple communication protocols should assess memory and peripheral requirements before design freeze.
推荐
Compact Consumer Accessory
The LPC11A02UK can be used in compact consumer accessories where a small controller must manage buttons, indicators, simple sensing, and local power management. The 20-WLCSP package reduces board footprint, and the integrated analog resources allow the design to monitor temperature or compare a measured signal without relying only on external digital components. The 2.6 V to 3.6 V operating range is useful for low-voltage designs, although the exact regulator, battery source, and I/O levels must be checked together. Firmware developers should verify programming access, reset behavior, and package pin multiplexing in the official documentation before layout release.
推荐
Small Embedded Control Module
LPC11A02UK is a practical choice for small embedded control modules that need deterministic digital control alongside basic analog supervision. The 32-bit Cortex-M0 architecture supports efficient instruction execution, and the available 18 I/O ports can connect control outputs, status inputs, and external logic. The integrated comparator can assist with fast threshold decisions, while the temperature sensor and internal reference provide useful local monitoring functions. Because the device has only 16 kB Flash and 4 kB SRAM, the architecture should be kept focused and real-time requirements should be checked carefully. A larger MCU is preferable when the application needs extensive buffers, complex protocols, or high-resolution conversion.
推荐
Battery Management Support
The LPC11A02UK can support a small battery-powered system by combining local voltage supervision, temperature sensing, and low-voltage detection in one controller. The internal voltage reference and UVLO protection are useful for monitoring operating conditions, while the comparator can provide a fast hardware-assisted threshold function. The MCU can generate state flags, control external circuitry, and coordinate a power policy through firmware. This application requires careful review of battery chemistry, regulator efficiency, load current, and low-power behavior; the supplied data confirms 2.6 V to 3.6 V operation and UVLO protection but does not provide battery-current or regulator-efficiency figures.
推荐
Portable Measurement Device
LPC11A02UK can serve portable measurement equipment that prioritizes compactness, local analog functions, and embedded control. Its analog comparator is useful for comparing a sensor signal with a threshold, the internal voltage reference can support repeatable measurement setup, and the temperature sensor can assist with system monitoring. The Cortex-M0 core can handle calibration state, measurement sequencing, and user-interface control. The package footprint helps reduce board size, but the 16 kB Flash and 4 kB SRAM require disciplined firmware sizing. If the product requires simultaneous high-resolution ADC sampling, large data capture, or advanced connectivity, select a higher-capacity MCU rather than forcing these functions into the LPC11A02UK.
推荐
工程参考数据： LPC11A02UK ——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 | LPC11A02UK,118 | LPC11A02UK | LPC11A02UK,118 | LPC11A02UK |
|---|---|---|---|---|---|
| Package | 20-WLCSP, approximately 2.50 x 2.50 mm | 20-WLCSP, same device ordering code | 20-WLCSP, target MPN | 20-WLCSP, Mouser ordering code | 20-WLCSP, DigiKey product listing |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| CPU Core | Arm Cortex-M0 | Arm Cortex-M0 | Arm Cortex-M0 | Arm Cortex-M0 | Arm Cortex-M0 |
| Maximum CPU Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 16 kB | 16 kB | 16 kB | 16 kB | 16 kB |
| SRAM | 4 kB | 4 kB | 4 kB | 4 kB | 4 kB |
| Supply Voltage | 2.6 V to 3.6 V | 2.6 V to 3.6 V | 2.6 V to 3.6 V | 2.6 V to 3.6 V | 2.6 V to 3.6 V |
| I/O Ports | 18 | 18 | 18 | 18 | 18 |
| Mixed-Signal Peripherals | 1-bit ADC, 10-bit DAC, comparator, temperature sensor, internal voltage reference, UVLO | Same LPC11A02UK feature set | Same LPC11A02UK feature set | Same LPC11A02UK feature set | Same LPC11A02UK feature set |
| Lifecycle Status | Active | Active product listing | Active | Active product listing | Active |
关键差异点
- Integrated mixed-signal resources （对比 LPC11A02UK,118)
- Compact package footprint （对比 LPC11A02UK)
- Resource-constrained Cortex-M0 positioning （对比 LPC11A02UK,118)
设计说明
Treat the 20-WLCSP footprint as a layout-controlled interface. Use the official NXP land pattern, ball numbering, pad dimensions, solder-mask definition, and reflow profile rather than estimating from the nominal 2.50 x 2.50 mm body size. Confirm exposed-pad or thermal-via requirements from the exact package drawing before fabrication. A small body size does not imply that routing, paste volume, or assembly tolerances can be relaxed.
Design the 2.6 V to 3.6 V supply rail with local decoupling close to the device and verify startup, UVLO behavior, and load-current requirements against the datasheet. The integrated internal voltage reference and temperature sensor can help monitoring functions, but they do not replace a correctly sized regulator or input protection network. Check every external sensor and I/O signal for voltage-level compatibility before connecting it to the 20-WLCSP device.
Do not select LPC11A02UK solely because it is a 50 MHz Cortex-M0 device. Firmware must fit within 16 kB Flash and data usage must remain within 4 kB SRAM, while the 1-bit ADC and 10-bit DAC impose specific measurement and output requirements. Also avoid assuming that a similarly named LPC11Axx or another Cortex-M0 MCU is pin-compatible. Confirm the exact ball map, peripheral availability, programming interface, and package suffix before substitution.
合规信息
The supplied manufacturer and distributor snippets do not provide compliance declarations for RoHS, REACH, lead-free status, halogen-free status, conflict minerals, or automotive qualification. These fields remain unknown rather than inferred.
