STM32G491REI6 - 170MHz 512KB Cortex-M4F MCU | STMicroelectronics
料号： STM32G491REI6 ✓ 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 |
STM32G491REI6 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals onto one package. The ARM Cortex-M4F core provides a 32-bit instruction set and floating-point processing, while the STM32G4 family adds mixed-signal and motor-control features suited to industrial, consumer, and embedded applications. In the system hierarchy, STM32G491REI6 is an MCU, a microcontroller, and an embedded processing IC within the broader semiconductor category.
Verified source information identifies a maximum core frequency of 170 MHz and 512 KB of programmable Flash. The DigiKey listing describes the part as an ARM Cortex-M4F STM32G4 microcontroller in a 64-UFBGA package measuring 5 mm × 5 mm. Mouser likewise identifies the device as an Arm Cortex-M4+ MCU with 512 KB of Flash memory. These compact dimensions support dense PCB layouts where a larger leaded package would be impractical.
The STM32G491RE platform is positioned for applications requiring more performance than general-purpose entry-level MCUs, including digital power conversion, motor control, industrial sensing, communications, and compact control systems. Its high-performance Cortex-M4F architecture can execute control algorithms while supporting simultaneous use of analog and digital peripherals. The exact peripheral configuration, voltage limits, SRAM capacity, and operating-temperature limits must be confirmed in the manufacturer documentation before design release.
Typical application areas include motor drives, power-supply control, sensor acquisition, industrial automation, communications equipment, and consumer devices. The 64-UFBGA footprint reduces board area but requires careful escape routing, inspection, and assembly planning because its ball grid and fine pitch complicate rework compared with leaded packages.
Designers should budget decoupling, validate power sequencing, and preserve adequate routing clearance around exposed thermal and electrical features. Firmware migration should also account for peripheral and pin differences between STM32 families. This page consolidates distributor availability, official product information, and engineering-selection guidance rather than duplicating only the raw datasheet specifications.
The STM32G491REI6 is appropriate when a design specifically needs the STM32G491 platform, 170 MHz Cortex-M4F processing, and 512 KB Flash in a compact 64-UFBGA footprint. Before substituting another MCU, verify package geometry, pin multiplexing, clock configuration, memory map, peripheral coverage, voltage constraints, and qualification requirements rather than relying only on headline frequency.
直接替换替代料： STM32G491REI6 ——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： STM32G491REI6 （相同外形与封装尺寸） ——差异在于 Flash Organization, Package.
快速对比工具——选择替代料号进行并排对比：
该产品暂无直接替换替代料。
请求替代料STM32G491REI6 最大额定值与电气特性
| Core | ARM Cortex-M4F |
| Architecture | 32-bit RISC |
| Maximum Core Frequency | 170 MHz |
| Flash Memory | 512 KB |
| Flash Organization | 512K × 8 |
| Product Family | STM32G4 |
| Device Variant | STM32G491xC/xE |
| 封装 | 64-UFBGA (5 mm × 5 mm) |
| 引脚数量 | 64 pins |
| 安装类型 | Surface Mount |
STM32G491REI6 64-ufbga (5 mm × 5 mm) 引脚配置指南
STM32G491REI6（64-ufbga (5 mm × 5 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： STM32G491REI6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32G491REI6 适用于 6 应用s: Industrial Motor Control, Digital Power Conversion, Industrial Sensor Acquisition, Communications Equipment, Secure IoT Edge Devices, Portable Medical and Instrumentation.
Industrial Motor Control
The STM32G491REI6 fits compact motor-control platforms that need faster arithmetic than an entry-level Cortex-M MCU. Its confirmed 170 MHz ARM Cortex-M4F core and floating-point support can execute control calculations, while 512 KB of Flash provides room for algorithms and diagnostics. The 64-UFBGA 5 mm × 5 mm package also preserves board area in multi-axis equipment. Final suitability still depends on the verified PWM, ADC, comparator, timer, and control-loop accelerator configuration, while careful decoupling and return-path planning are essential to analog performance.
推荐
Digital Power Conversion
STM32G491REI6 is a logical starting point for digital power converters where fast control-loop execution, mixed-signal measurement, and compact placement matter. The 170 MHz Cortex-M4F core provides more computation than basic MCUs, and the STM32G4 family is positioned for demanding control functions. Its 512 KB of Flash can hold control code, calibration, and fault handling. Before committing, confirm the exact ADC, timer, DAC, and PWM resources from the manufacturer documentation; board design must also isolate switching nodes and provide low-impedance decoupling.
推荐
Industrial Sensor Acquisition
The STM32G491REI6 can serve as the processing center in a compact industrial sensing module because it combines a 170 MHz 32-bit Cortex-M4F core with 512 KB of Flash for local filtering and configuration handling. Its small 64-UFBGA footprint supports placement near sensors and communication circuitry, reducing board area. Analog performance depends on the exact ADC and analog-peripheral configuration, which is not present in the supplied snippets. Designers should use short, shielded analog routes, local reference and bypass capacitors, and calibrated gain stages before relying on measurement accuracy.
推荐
Communications Equipment
STM32G491REI6 is suitable for protocol gateways and embedded communications controllers that combine packet handling, local control, and compact packaging. Its 170 MHz Cortex-M4F core can support responsive real-time tasks, while 512 KB of Flash provides storage for protocol stacks and configuration. The specific UART, USB, CAN, Ethernet, and other interface inventory was not supplied, so each required transceiver path must be checked in the manufacturer documentation. Layout should reserve short differential routes where applicable and separate high-current switching supplies from sensitive receiver circuitry.
推荐
Secure IoT Edge Devices
The STM32G491REI6 can serve as the local edge controller in a compact IoT product requiring deterministic control rather than only connectivity. A 170 MHz Cortex-M4F processor and 512 KB of Flash allow firmware to combine sensor handling, communications, and local automation. Its 5 mm × 5 mm 64-UFBGA footprint helps reduce product size, although manufacturing and rework become more demanding than with leaded packages. Verify cryptographic hardware, boot features, exact interface availability, and low-power requirements before choosing the MCU for a security-sensitive deployment.
推荐
Portable Medical and Instrumentation
STM32G491REI6 can be evaluated for compact instrumentation where signal processing, deterministic control, and a small controller footprint are required. The 170 MHz Cortex-M4F core supports floating-point workloads and real-time control, and the 512 KB Flash capacity accommodates embedded software without immediately requiring external memory. Because medical or diagnostic status cannot be inferred from the supplied data, engineers must verify the needed analog inputs, timing, low-power behavior, and applicable qualification requirements. Sensitive analog sections should use guarded layouts, solid grounding, and separate return paths.
推荐
推荐产品汇总
工程参考数据： STM32G491REI6 ——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 |
|---|---|
| Package | 64-UFBGA (5 mm × 5 mm) |
| Brand | STMicroelectronics |
| Core | ARM Cortex-M4F |
| Maximum Frequency | 170 MHz |
| Flash Memory | 512 KB |
| Flash Organization | 512K × 8 |
| Architecture | 32-bit RISC |
| Product Family | STM32G4 |
关键差异点
- High-performance Cortex-M4F processing （对比 STM32L451REI6)
- 512 KB of embedded Flash in a compact footprint （对比 STM32F091RCH7)
- 32-bit floating-point control platform （对比 STM32F098RCH6)
设计说明
Use the manufacturer’s 64-UFBGA land pattern and ball map rather than reconstructing it from general package drawings. The verified package is only 5 mm × 5 mm, so fanout, via placement, solder-mask definition, and assembly process capability must be reviewed together. Validate the escape-routing strategy on the actual stack-up and include test points where practical. Because pin assignments and exposed-pad requirements were not supplied, the official package drawing is a mandatory layout input.
Place all required bypass capacitors next to their associated supply balls and preserve a low-impedance return path. The supplied data confirms a 170 MHz Cortex-M4F MCU but does not specify voltage domains, current limits, decoupling values, or power sequencing. Those values must come from the manufacturer datasheet before capacitor selection. Separate analog and digital supply filtering where the device supports both, and check startup behavior across the complete supply range before finalizing the power tree.
The compact 64-UFBGA package can couple processor heat into the PCB, but no verified thermal-resistance or power-consumption figures were provided. Do not assume that the small package implies low dissipation at 170 MHz. Use the manufacturer’s maximum junction and ambient limits to estimate design margin, then provide thermal vias and copper under or near the package where the land pattern permits. Validate worst-case ambient, switching activity, and supply voltage during thermal testing.
Do not treat similarly named STM32 devices or generic Cortex-M replacements as drop-in equivalents. A valid PCB reuse requires the same 64-UFBGA ball map, pin multiplexing, supply rails, clock pins, debug interface, peripheral assignments, and boot behavior. The verified cross-reference results did not establish any such substitute. Treat STM32L451REI6, STM32F091RCH7, and STM32F098RCH6 as redesign candidates until their manufacturer data and firmware dependencies have been checked.
Route high-speed clocks and communications lines as controlled-impedance routes with continuous reference planes and minimal stubs. The verified maximum frequency is 170 MHz, but the actual external interface rate depends on the selected peripheral, GPIO, voltage, and application configuration. Apply the manufacturer’s recommended GPIO slew-rate and capacitance settings, keep clock sources away from switching nodes, and verify timing with the final firmware and board stack-up rather than relying on nominal core frequency alone.
合规信息
The supplied verified snippets do not explicitly provide material-compliance declarations for STM32G491REI6. AEC-Q100 is treated as not applicable because the verified data does not identify this orderable MPN as an automotive-qualified variant; this is not a statement that the product is unsuitable for industrial applications.
