STM32L4A6QGI6 - 80MHz Cortex-M4 1MB MCU | STMicroelectronics
料号： STM32L4A6QGI6 ✓ 量产中STM32L4A6QGI6 概述
An ultra-low-power microcontroller is an embedded processing component designed to balance compute performance, energy consumption, and peripheral integration. The STM32L4A6 belongs to the STM32L4 family of 32-bit RISC microcontrollers. Its Arm Cortex-M4 core places it above basic 8-bit and 16-bit embedded controllers in processing capability while retaining a compact, low-power architecture suitable for battery-powered and industrial systems.
The principal verified specifications are an 80 MHz operating frequency, 1 MB of Flash, a 32-bit Arm Cortex-M4 processor, and a 132-UFBGA package. Distributor listings also identify USB OTG, LCD support, and AES functionality. One distributor source additionally lists 114 I/O. These integrated features can reduce the number of external devices required in designs that need USB connectivity, display control, or hardware-assisted secure data processing.
Technically, the STM32L4A6QGI6 is intended for low-power embedded control. Its Cortex-M4 architecture supports efficient interrupt-driven firmware, while the integrated communications and security-oriented features broaden its applicability beyond basic sensor reading or actuator control. The exact RAM size, voltage range, ADC characteristics, GPIO current ratings, and detailed power-consumption figures are not included in the supplied verified excerpts and should be confirmed in the manufacturer documentation before design release.
Typical uses include compact USB-connected control equipment, low-power industrial sensor nodes, display-oriented embedded controls, and security-conscious portable products. The 7 x 7 mm UFBGA package supports dense PCB layouts, although exposed-pad layout, escape routing, assembly profile, and pin-level connectivity require careful review before layout signoff.
The primary design consideration is that a 132-ball package demands disciplined PCB layout and manufacturing controls. Place decoupling capacitors close to supply pins, preserve the package thermal and electrical land pattern specified by STMicroelectronics, and validate USB impedance, power sequencing, and signal routing against the relevant device documentation.
This page consolidates the verified manufacturer and distributor facts, distinguishes documented capabilities from unavailable parameters, and provides package-aware replacement guidance and practical integration notes rather than presenting unsupported specifications as confirmed facts.
直接替换替代料： STM32L4A6QGI6 ——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： STM32L4A6QGI6 （相同外形与封装尺寸） ——差异在于 Flash Memory, Package, Architecture, Audio Support, Core.
STM32L4A6AGI6P
✅ 直接替换📋 参考替代料（不在目录中）
STM32L4A6AGI6
✅ 直接替换联系询价
查看数据手册 →STM32L4A6QGI6 最大额定值与电气特性
| Product Type | 32-bit ultra-low-power microcontroller |
| Processor Core | Arm Cortex-M4 |
| Maximum CPU Frequency | 80 MHz |
| Architecture | 32-bit RISC |
| Flash Memory | 1 MB (1M x 8) |
| USB Capability | USB OTG |
| Display Capability | LCD support |
| Security Feature | AES |
| I/O Count | 114 I/O |
| 电源电压 | 3 V |
| 封装 | 132-UFBGA (7 x 7 mm) |
| 安装类型 | Surface mount |
| Program Memory Type | Flash |
STM32L4A6QGI6 132-ufbga (7 x 7 mm) 引脚配置指南
STM32L4A6QGI6（132-ufbga (7 x 7 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： STM32L4A6QGI6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32L4A6QGI6 适用于 6 应用s: USB-connected industrial control, Low-power sensor and data-acquisition node, Display-oriented embedded control, Security-aware portable equipment, Compact communications and network interface, Battery-operated measurement instrument.
USB-connected industrial control
The STM32L4A6QGI6 fits compact USB-enabled industrial controllers because it combines an 80 MHz Arm Cortex-M4 core, 1 MB of Flash, and USB OTG in a 7 x 7 mm 132-UFBGA package. The high-performance 32-bit core can service protocol handling, local control logic, and data acquisition while USB provides a direct host interface. Its compact package also supports space-constrained panels and handheld service tools. The implementation should reserve board area for USB routing and ESD protection, confirm the exact electrical USB requirements from the complete manufacturer documentation, and validate suspended-current behavior before optimizing power consumption.
推荐
Low-power sensor and data-acquisition node
The STM32L4A6QGI6 is appropriate for a low-power sensor node because the STM32L4A6 family is positioned as ultra-low power and the device provides an 80 MHz Cortex-M4 core with 1 MB of Flash for local filtering and protocol handling. Its 132-UFBGA footprint limits board area in distributed monitoring equipment, while integrated USB OTG can simplify configuration, data export, or service connections. Exact ADC performance, RAM capacity, and low-power current values are absent from the supplied excerpts, so engineers should confirm sensor excitation, sampling rate, wake-up latency, and buffering requirements against the full manufacturer documentation before finalizing the design.
推荐
Display-oriented embedded control
The STM32L4A6QGI6 supports display-oriented embedded control through its verified LCD capability, 80 MHz Cortex-M4 processing throughput, and 1 MB of programmable Flash. Engineers can use the MCU to coordinate user input, graphics updates, and supervisory control functions without relying on a separate display controller for every interface. Its 132-UFBGA 7 x 7 mm package is useful in compact panels, but the high ball count makes careful escape routing and layer assignment important. The supplied excerpts do not identify the supported LCD panel sizes or electrical timing, so the display interface should be checked directly against the complete STM32L4A6 documentation.
推荐
Security-aware portable equipment
The STM32L4A6QGI6 can support portable equipment requiring a compact general-purpose controller and verified AES capability. The 80 MHz Cortex-M4 core provides capacity for control logic, data preparation, and cryptographic operations, while the 132-UFBGA package limits board footprint in wearables, service tools, and compact readers. USB OTG may support encrypted configuration transfer or device connectivity. Designers should not treat the presence of AES as a complete security architecture: key storage, random-number requirements, boot protection, authentication, and update procedures must be evaluated, and the exact cryptographic implementation details require the manufacturer documentation.
推荐
Compact communications and network interface
The STM32L4A6QGI6 is well suited to compact communications equipment because its 80 MHz Cortex-M4 core, 1 MB Flash, USB OTG, and AES capability support protocol processing, secure data handling, and configuration tasks in one device. A 132-UFBGA package allows the controller to sit beside network or serial-interface circuitry in space-constrained gateways. USB can serve as a management or service connection. For production designs, engineers should validate transceiver levels, isolation requirements, protocol timing, and connector protection, and should avoid assuming that general processor performance alone guarantees a particular network throughput.
推荐
Battery-operated measurement instrument
The STM32L4A6QGI6 can serve as the central controller in a battery-operated measurement instrument because the STM32L4A6 is an ultra-low-power MCU family member and the device combines 1 MB Flash with USB OTG for configuration and data transfer. The 132-UFBGA package preserves board area, and the Cortex-M4 core can coordinate sensors, controls, and local data processing. A defensible battery-life calculation still requires verified sleep, stop, active, and USB-suspend current values, none of which appear in the supplied excerpts. Use manufacturer power data under the intended temperature and workload, then include regulator quiescent current and peripheral leakage in the system budget.
推荐
推荐产品汇总
工程参考数据： STM32L4A6QGI6 ——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 | STM32L4A6AGI6P | STM32L4A6AGI6 |
|---|---|---|---|
| Package | 132-UFBGA (7 x 7 mm) | 132-UFBGA (7 x 7 mm) | 132-UFBGA (7 x 7 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Processor Core | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 |
关键差异点
- Verified USB, LCD, and AES integration （对比 STM32L4A6AGI6)
- Verified 80 MHz Cortex-M4 operating point （对比 STM32L4A6AGI6P)
- Confirmed production order configuration （对比 STM32L4A6AGI6P)
设计说明
Treat the 132-UFBGA land pattern as a manufacturer-controlled constraint rather than a generic footprint. Confirm ball locations, pad dimensions, solder-mask definition, paste apertures, and board stack-up against STMicroelectronics’ package documentation before routing. Keep decoupling paths short and place each bulk capacitor near the supply ball it serves; high-ball-count BGAs can conceal long return paths that appear electrically short on a schematic but add excessive loop area.
Build the power budget from verified operating-mode currents rather than the “ultra-low-power” family description. The supplied excerpts do not include active, sleep, stop, shutdown, or USB-suspend current, so runtime and battery-life calculations cannot be completed. Include MCU current, regulator quiescent current, external pull networks, sensors, and communications hardware, then evaluate worst-case operation at the highest intended temperature. Revisit the calculation whenever firmware changes the clock, peripherals, or low-power mode.
Preserve clean return paths under the device and separate sensitive analog routes from USB, clock, and fast-switching nodes. USB signal integrity must be evaluated with the actual stack-up and connector, while ADC or sensor inputs should use appropriate grounding and shielding techniques. Because the package uses a 7 x 7 mm footprint with 132 balls, use the official via-in-pad and assembly guidance rather than assuming that every exposed manufacturing process supports dense escape routing.
Do not substitute an STM32L4A6 order code based only on family name or package size. Ordering suffixes can identify memory, temperature grade, qualification status, or package options, and the supplied evidence does not provide a complete comparison for the alternatives. Before a purchase substitution, compare the official ordering-information table, pin definitions, electrical characteristics, peripheral population, and errata documents. Firmware compatibility and production change-control must also be reviewed.
合规信息
The supplied manufacturer and distributor excerpts do not provide explicit compliance declarations. AEC-Q100 is marked not applicable because the part is an MCU rather than an automotive-qualified power semiconductor, not because an automotive qualification has been established.
