STM32L496VGT3 - 80MHz Cortex-M4 MCU | STMicroelectronics
MPN： STM32L496VGT3 ✓ 啟用中STM32L496VGT3 概覽
An ultra-low-power microcontroller is a semiconductor controller designed to balance processing capability with minimum energy consumption. The STM32L496 belongs to the STM32L4 family and combines the Arm Cortex-M4 processor with embedded memory, communication interfaces, analog conversion functions, and low-power operating modes. This hierarchy places it within embedded processing, microcontroller, and power-management-aware system design.
Principal device features include 1 MB of flash, 320 KB of SRAM, an Arm Cortex-M4 FPU core, and operation up to 80 MHz. The device also provides USB OTG 2.0 full-speed connectivity, two 12-bit DAC channels, two operational amplifiers with programmable gain, and two ultra-low-power comparators. Low-power characteristics include 320 nA consumption in VBAT mode and 25 nA consumption in shutdown mode with five wakeup pins.
The peripheral set includes four I2C interfaces supporting FM+ operation at 1 Mbit/s, five USARTs, one LPUART, three SPIs, a Quad-SPI capability, two serial audio interfaces, and other communication resources. The 100-pin LQFP package provides enough external connectivity for industrial controllers, audio equipment, data-acquisition systems, and USB-enabled embedded products while supporting a broad operating-temperature option.
Typical applications include USB-connected industrial data loggers, audio control systems, portable instruments, sensor-hub controllers, and low-power monitoring equipment. Engineers can use the Cortex-M4 FPU for DSP-oriented control loops, the DAC and operational amplifiers for analog signal conditioning, and the USB interface for configuration or data transfer.
Power design must account for the 1.71 V to 3.6 V operating range, peripheral load current, and the difference between active and low-power consumption. Decoupling, controlled startup, unused-pin treatment, and thermal management should follow the pin definitions and application guidance in the manufacturer datasheet.
This page combines the STM32L496VGT3 electrical characteristics, pin-oriented engineering guidance, same-family drop-in alternatives, and application comparisons to help designers evaluate integration, firmware constraints, and board-level implementation before releasing a PCB.
直接替換替代品，適用於 STM32L496VGT3 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM32L496VGT3 （相同外形與佔位） — 差異在於 Package, VBAT Mode Current, Flash Memory, ADC, DAC.
STM32L496VGT6
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$9.5455 / 單位
查看資料表 →STM32L496VGH3
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L496VGH6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L496VET6
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L496VEH3
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32L496VGT3 最大額定值與電氣特性
| Product Type | 32-bit ultra-low-power microcontroller |
| Processor Core | Arm Cortex-M4 with FPU |
| Maximum CPU Frequency | 80 MHz |
| Performance | 100 DMIPS |
| Flash Memory | 1 MB |
| SRAM | 320 KB |
| 工作電源電壓 | 1.71 V to 3.6 V |
| 工作溫度 | -40 °C to 125 °C |
| VBAT Mode Current | 320 nA |
| Shutdown Mode Current | 25 nA with five wakeup pins |
| USB Interface | USB OTG 2.0 full-speed |
| DAC Channels | 2 channels, 12-bit resolution |
| Operational Amplifiers | 2 with programmable gain |
| Comparators | 2 ultra-low-power channels |
| I2C Interfaces | 4 with FM+ operation up to 1 Mbit/s |
| USART Interfaces | 5 channels |
| LPUART Interfaces | 1 channel |
| SPI Interfaces | 3 channels, with Quad-SPI capability |
| Serial Audio Interfaces | 2 SAI channels |
| 封裝 | 100-LQFP, 14 x 14 mm |
| 安裝類型 | Surface mount |
STM32L496VGT3 100-lqfp, 14 x 14 mm 腳位配置指南
STM32L496VGT3（100-lqfp, 14 x 14 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： STM32L496VGT3.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM32L496VGT3 適用於 6 應用s: USB-Connected Data Acquisition, Industrial Sensor and Control Hub, Low-Power Portable Instrument, Digital Audio Control System, Battery-Powered Environmental Monitor, Secure Network Gateway Controller.
USB-Connected Data Acquisition
The STM32L496VGT3 suits USB-enabled data-acquisition equipment because it combines USB OTG 2.0 full-speed with an 80 MHz Cortex-M4 FPU and 320 KB SRAM. The processor can service real-time sampling control while the USB interface transfers records to a host. Four I2C channels, three SPI interfaces, five USARTs, and two 12-bit DAC outputs support mixed sensor and actuator connectivity. The 1 MB flash provides room for application firmware and calibration tables. Its 1.71 V to 3.6 V supply range also permits a compact regulated power architecture. Validate USB impedance routing, input filtering, and the device configuration required by the selected development platform.
推薦
Industrial Sensor and Control Hub
The STM32L496VGT3 is appropriate for industrial sensor hubs that combine low-power monitoring with multiple communication standards. Its 80 MHz Cortex-M4 core and 100 DMIPS performance support control loops, while four I2C FM+ interfaces operating to 1 Mbit/s connect sensors efficiently. Three SPI interfaces, five USARTs, and one LPUART provide options for radios, displays, and legacy equipment. The 320 KB SRAM supports buffering, and the 1 MB flash accommodates firmware plus local parameters. Use the wide 1.71 V to 3.6 V operating range for regulated industrial rails, while checking isolation, surge protection, thermal margins, and environmental qualification outside the MCU package itself.
推薦
Low-Power Portable Instrument
The STM32L496VGT3 fits portable instruments that spend much of their operating life between active measurements. The manufacturer specifies 320 nA in VBAT mode and 25 nA in shutdown mode with five wakeup pins, enabling the MCU to remain available for RTC or backup-register functions while external sensors are unpowered. Its Cortex-M4 FPU can execute floating-point filtering, and the 1 MB flash supports local storage code. The 100-LQFP package exposes enough pins for displays, buttons, analog inputs, and serial accessories. Battery-life calculations must combine the MCU sleep current with regulator quiescent current, sensor leakage, wake duration, and display load rather than relying on the headline shutdown figure alone.
推薦
Digital Audio Control System
The STM32L496VGT3 can act as the control processor in digital audio equipment because it provides two serial audio interfaces, USB OTG FS, and two 12-bit DAC output channels. The 80 MHz Cortex-M4 FPU handles signal processing and control tasks, while the 1 MB flash accommodates protocol, routing, and firmware components. Its two integrated operational amplifiers with programmable gain can support conditioning stages, and the two low-power comparators can handle simple threshold or protection functions. The 100-LQFP package provides access to multiple serial peripherals for audio codecs and control boards. Audio-clock jitter, grounding, codec supply sequencing, and analog-noise performance must be evaluated separately from the MCU's general-purpose specifications.
推薦
Battery-Powered Environmental Monitor
The STM32L496VGT3 supports environmental monitoring designs that periodically sample sensors and maintain a low standby load. The 1 MB flash can hold firmware, interval schedules, and calibration coefficients, while 320 KB SRAM can hold sample batches before transmission. Four I2C FM+ channels and three SPI interfaces allow different environmental sensors to coexist, while the LPUART or USART supports low-speed links to a radio module. Low-power operation is supported by 320 nA VBAT mode and 25 nA shutdown with five wakeup pins. Field suitability depends on the enclosure temperature, solar or battery behavior, sensor heater duty cycle, and transmission energy, none of which is represented by the MCU shutdown-current specification alone.
推薦
Secure Network Gateway Controller
The STM32L496VGT3 is suitable for a local gateway controller that must coordinate serial devices and communicate over Ethernet or another host interface. The 80 MHz Cortex-M4 FPU and 1 MB flash provide headroom for protocol handling, configuration storage, and security services, while the 320 KB SRAM supports packet and control buffers. Five USARTs, one LPUART, four I2C channels, and multiple SPI interfaces enable connection to radios, modems, sensors, and memory. USB OTG FS can simplify configuration or maintenance connectivity. A production design must allocate firmware and stack memory carefully, isolate high-energy interface transients from the MCU, and validate clocking, Ethernet PHY timing, and bootloader behavior under the required environmental conditions.
推薦
推薦產品摘要
工程參考資料，適用於 STM32L496VGT3 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM32L496VGT6 | STM32L496VGH3 | STM32L496VGH6 | STM32L496VET6 | STM32L496VEH3 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm), same footprint | 100-LQFP (14 x 14 mm), same footprint | 100-LQFP (14 x 14 mm), same footprint | 100-LQFP (14 x 14 mm), same footprint | 100-LQFP (14 x 14 mm), same footprint |
| Flash Memory | 1 MB | 1 MB | 512 KB | 512 KB | 512 KB | 256 KB |
| Maximum Operating Temperature | 125 °C | 85 °C | 125 °C | 85 °C | 85 °C | 125 °C |
主要差異化特點
- Higher operating-temperature coverage (對比STM32L496VGT6)
- Twice the flash capacity of the VGH3 alternative (對比STM32L496VGH3)
- Four times the flash capacity of the VEH3 alternative (對比STM32L496VEH3)
設計說明
Design the supply network for the documented 1.71 V to 3.6 V operating range and place the manufacturer-recommended decoupling capacitors close to the VDD and VSS connections. Separate analog and digital return paths where the board architecture permits, and keep switching regulators, USB routing, and high-current peripherals away from sensitive analog inputs. Validate brownout behavior, startup sequencing, and maximum supply tolerance before enabling peripheral clocks.
Use the 100-LQFP footprint with its 14 x 14 mm body dimensions, and verify pad length, pitch, and exposed thermal or thermal-pad details against the manufacturer land-pattern guidance. Route high-speed clocks, USB data, and serial interfaces away from analog inputs and noisy power-conversion nodes. Use a solid ground plane, short return paths, and controlled impedance routing for USB and external communication lines.
Do not substitute a lower-memory or lower-temperature STM32L496 variant without checking firmware image size, bootloader assumptions, peripheral assignments, and environmental limits. A matching package does not guarantee identical software behavior or peripheral availability. Review the exact pin-description table, clock configuration, power-mode transitions, and peripheral constraints in the manufacturer datasheet before releasing a substitution to production.
Although the STM32L496VGT3 is designed for low-power operation, package dissipation depends on CPU load, clock frequency, active peripherals, and ambient temperature. Provide continuous copper beneath and around the LQFP where the board outline permits, keep thermal vias close to the package, and avoid enclosing the device in a sealed enclosure without a thermal path. Estimate worst-case dissipation at the highest intended frequency and verify junction-temperature margin during functional testing.
合規資訊
The manufacturer datasheet and manufacturer product page were used for technical identification. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations require confirmation from the current manufacturer product documentation or declaration.
