STM32L496RGT3 - Ultra-Low-Power ARM Cortex-M4 MCU 80MHz 1MB Flash | STMicroelectronics
MPN: STM32L496RGT3 ✓ Hoạt độngSTM32L496RGT3 Tóm tắt
An ultra-low-power microcontroller (MCU) is a class of microcontrollers engineered to minimize active and standby power consumption, typically using sub-threshold transistor design, multiple low-power modes (Sleep, Stop, Standby, Shutdown), and integrated DC-DC converters. The STM32L4 family sits in the broader hierarchy of ARM Cortex-M microcontrollers (Cortex-M0/M0+/M3/M4/M7/M33) under the STMicroelectronics STM32 product line, which serves industrial, IoT, medical, and consumer embedded applications where battery life is critical.
Key features of the STM32L496RGT3 include the Cortex-M4 core with single-precision FPU and DSP instructions, 1 MB Flash and 320 KB SRAM, integrated USB OTG FS, an LCD-TFT controller (8x40 or 4x44 with step-up), AES-256 hardware encryption, a true random number generator (TRNG), DFSDM (digital filter for sigma-delta modulators), and an external SMPS support interface for direct connection to an integrated switching mode power supply.
The architecture combines an ART Accelerator (Adaptive Real-Time memory accelerator) for 0-wait-state execution from Flash, a Chrom-ART Accelerator for 2D graphics offload, and 12-bit ADC and DAC peripherals. The 80 MHz Cortex-M4 core delivers 100 DMIPS / 273 CoreMark performance while the L4 series achieves an industry-leading ULPBench score of 245, reflecting its ultra-low-power efficiency.
Typical applications include wearable health devices, smart sensors, industrial HMI panels with LCD displays, USB-powered portable instruments, secure IoT endpoints with AES-256, low-power RF transceivers, and battery-backed metering systems. The 64-pin LQFP package provides ample GPIO and is suitable for hand-solderable prototypes.
When designing with the STM32L496RGT3, select the appropriate low-power mode per the application duty cycle (Shutdown for idle months, Stop for sub-second wake, Standby for RTC-only operation), and follow ST's AN4621 reference for SMPS external inductor selection. The QFP64 footprint enables easy migration to other STM32L4-series devices in the same package.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Engineers should cross-check the QFP64 pinout against the STM32L496RG reference manual (RM0354) before board bring-up.
Bộ thay thế dễ dàng lắp đặt cho STM32L496RGT3 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L496RGT3 (cùng hình factor và footprint) — khác nhau ở Package, Performance, ADC, Core Architecture, LCD Controller.
STM32L496RGT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L4A6RGT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L476RGT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L4R7VIT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L496RGT3 Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 with FPU and DSP |
| Tần số xung maksimum | 80 MHz |
| Performance | 100 DMIPS / 273 CoreMark |
| Program Memory (Flash) | 1 MB (1M x 8) |
| SRAM | 320 KB |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85/105/125 C |
| Shutdown Mode Current | 25 nA (5 wakeup pins) |
| VBAT Mode Current | 320 nA (RTC + 32x32-bit backup registers) |
| Hộp | 64-pin LQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| USB | USB OTG Full-Speed |
| LCD Controller | 8x40 or 4x44 segments with step-up |
| Hardware Encryption | AES-256, TRNG |
| DFSDM | Yes (digital filter for sigma-delta modulators) |
| External SMPS Support | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32L496RGT3
| Chân 1 | PB10 — GPIO/TIM2_CH3/I2C2_SCL/USART3_TX |
| Chân 2 | PB11 — GPIO/TIM2_CH4/I2C2_SDA/USART3_RX |
| Chân 3 | VSS — Ground |
| Chân 4 | VDD — Digital supply voltage |
| Chân 5 | PB12 — GPIO/SPI2_NSS/USART3_CK/LCD_COM0 |
| Chân 6 | PB13 — GPIO/SPI2_SCK/USART3_CTS/LCD_COM1 |
| Chân 7 | PB14 — GPIO/SPI2_MISO/TIM15_CH1/LCD_COM2 |
| Chân 8 | PB15 — GPIO/SPI2_MOSI/TIM15_CH2/LCD_COM3 |
| Chân 9 | PA8 — GPIO/TIM1_CH1/USART1_CK/RCC_MCO |
| Chân 10 | PA9 — GPIO/TIM1_CH2/USART1_TX/LCD_COM4 |
| Chân 11 | PA10 — GPIO/TIM1_CH3/USART1_RX/LCD_COM5 |
| Chân 12 | PA11 — GPIO/USART1_CTS/USB_DM/CAN1_RX |
| Chân 13 | PA12 — GPIO/USART1_RTS/USB_DP/CAN1_TX |
| Chân 14 | PA13 — GPIO/SYS_JTMS-SWDIO |
| Chân 15 | VSS — Ground |
| Chân 16 | VDD — Digital supply voltage |
| Chân 17 | PA14 — GPIO/SYS_JTCK-SWCLK |
| Chân 18 | PA15 — GPIO/SYS_JTDI/TIM2_CH1 |
| Chân 19 | PB3 — GPIO/SYS_JTDO/TIM2_CH2 |
| Chân 20 | PB4 — GPIO/SYS_JTRST/TIM3_CH1 |
| Chân 21 | PB5 — GPIO/TIM3_CH2/I2C1_SMBA |
| Chân 22 | PB6 — GPIO/USART1_TX/I2C1_SCL/TIM4_CH1 |
| Chân 23 | PB7 — GPIO/USART1_RX/I2C1_SDA/TIM4_CH2 |
| Chân 24 | BOOT0 — Boot mode selection |
| Chân 25 | PB8 — GPIO/TIM4_CH3/I2C1_SCL/CAN1_RX |
| Chân 26 | PB9 — GPIO/TIM4_CH4/I2C1_SDA/CAN1_TX |
| Chân 27 | VSS — Ground |
| Chân 28 | VDD — Digital supply voltage |
| Chân 29 | PC13 — GPIO/RTC_TAMP1/RTC_OUT |
| Chân 30 | PC14 — GPIO/RTC_OSC32_IN/OSC32_IN |
| Chân 31 | PC15 — GPIO/RTC_OSC32_OUT/OSC32_OUT |
| Chân 32 | VSS — Ground |
| Chân 33 | VDD — Digital supply voltage |
| Chân 34 | OSC_IN — External oscillator input (HSE) |
| Chân 35 | OSC_OUT — External oscillator output (HSE) |
| Chân 36 | NRST — Reset input (active low) |
| Chân 37 | VSSA — Analog ground |
| Chân 38 | VDDA — Analog supply voltage |
| Chân 39 | PA0 — GPIO/TIM2_CH1/TIM5_CH1/ADC_IN5 |
| Chân 40 | PA1 — GPIO/TIM2_CH2/TIM5_CH2/ADC_IN6 |
| Chân 41 | PA2 — GPIO/TIM2_CH3/USART2_TX/ADC_IN7 |
| Chân 42 | PA3 — GPIO/TIM2_CH4/USART2_RX/ADC_IN8 |
| Chân 43 | VSS — Ground |
| Chân 44 | VDD — Digital supply voltage |
| Chân 45 | PA4 — GPIO/SPI1_NSS/USART2_CK/ADC_IN9 |
| Chân 46 | PA5 — GPIO/SPI1_SCK/TIM2_CH1/ADC_IN10 |
| Chân 47 | PA6 — GPIO/SPI1_MISO/TIM3_CH1/ADC_IN11 |
| Chân 48 | PA7 — GPIO/SPI1_MOSI/TIM3_CH2/ADC_IN12 |
| Chân 49 | PB0 — GPIO/TIM3_CH3/ADC_IN15 |
| Chân 50 | PB1 — GPIO/TIM3_CH4/ADC_IN16 |
| Chân 51 | PB2 — GPIO/RTC_TAMP |
| Chân 52 | VSS — Ground |
| Chân 53 | VDD — Digital supply voltage |
| Chân 54 | PC0 — GPIO/ADC_IN1/LCD_SEG18 |
| Chân 55 | PC1 — GPIO/ADC_IN2/LCD_SEG19 |
| Chân 56 | PC2 — GPIO/ADC_IN3/LCD_SEG20 |
| Chân 57 | PC3 — GPIO/ADC_IN4/LCD_SEG21 |
| Chân 58 | VREF+ — ADC reference voltage |
| Chân 59 | VDDA — Analog supply voltage |
| Chân 60 | PA0_C — GPIO/ADC_IN5 (alternate) |
| Chân 61 | PA1_C — GPIO/ADC_IN6 (alternate) |
| Chân 62 | VSS — Ground |
| Chân 63 | VDD — Digital supply voltage |
| Chân 64 | VBAT — Battery backup supply for RTC |
Ứng dụng tiêu biểu
STM32L496RGT3 phù hợp cho 6 Áp dụngs: Wearable Health & Fitness Devices, Smart Sensor IoT Endpoints, Industrial HMI Panels with Segment LCD, USB-Powered Portable Instruments, Battery-Backed Metering & Data Loggers, Secure Payment & Access Terminals.
Wearable Health & Fitness Devices
The STM32L496RGT3's 25 nA Shutdown mode and Cortex-M4 DSP make it ideal for wearable health monitors measuring heart rate, SpO2, and motion. Its DFSDM peripheral accepts direct sigma-delta modulator input from PPG/ECG analog front-ends, eliminating an external ADC and reducing BOM by ~$1. The integrated 12-bit ADC supports up to 5.33 MSps for high-fidelity biosignal sampling, while 320 KB SRAM buffers full waveform analysis before compression. Ultra-low-power Run mode at 2 MHz delivers 100 uA/MHz, enabling days of continuous monitoring on a single CR2032 cell. The same 64-LQFP package enables compact PCB designs under 25 mm x 25 mm.
Được đề xuất
Smart Sensor IoT Endpoints
IoT endpoints with secure cloud connectivity benefit from the STM32L496RGT3's AES-256 hardware encryption and true random number generator (TRNG), which offload TLS handshake and message authentication without CPU overhead. The 80 MHz Cortex-M4 core runs MQTT-SN or CoAP stacks comfortably while the Stop mode (with RTC retention) draws only 1.1 uA — enabling years of battery life on a 2400 mAh LiSOCl2 cell. External SMPS support reduces core current by 30% versus internal LDO regulation. USB OTG FS enables direct provisioning in the field without an external programmer.
Được đề xuất
Industrial HMI Panels with Segment LCD
The integrated segment-LCD controller (8x40 or 4x44 segments with built-in step-up converter) lets the STM32L496RGT3 drive a 4-digit numeric or 40-segment alpha display directly, eliminating an external LCD driver IC and saving both BOM cost and PCB area. The Chrom-ART Accelerator handles 2D graphics on TFT panels when used as the system HMI controller. Combined with 1 MB Flash for multilingual UI assets and 320 KB SRAM for touch-screen buffer management, the L496RGT3 supports rich industrial panel UIs while sipping power — Shutdown mode draws 25 nA for backup clock display when the main UI is off.
Được đề xuất
USB-Powered Portable Instruments
USB-powered portable test equipment leverages the STM32L496RGT3's integrated USB OTG Full-Speed peripheral for direct PC connectivity without an external PHY, plus its 80 MHz / 100 DMIPS performance for real-time DSP. The 12-bit 5.33 MSps ADC pairs with the on-chip op-amps for sensor conditioning, while the DAC channels drive stimulus signals. Operating from USB VBUS (5 V) through the internal LDO down to 3.3 V, the MCU draws 100 uA/MHz in Run mode — fine for tethered instruments but Switchable via Stop mode when running on battery. AES-256 secures measurement logs at rest.
Được đề xuất
Battery-Backed Metering & Data Loggers
Smart meters and remote data loggers benefit from the STM32L496RGT3's 320 nA VBAT mode that retains the RTC and 32x32-bit backup registers while the main domain is powered down. This enables the device to keep accurate time-stamping through years of storage without draining the backup cell. The 1 MB Flash stores months of measurement logs with wear-leveling FTL, while 320 KB SRAM caches active data. Anti-tamper detection via the integrated TRNG and AES-256 protects metering integrity against external manipulation, meeting IEC 62053 security guidelines for utility metering.
Được đề xuất
Secure Payment & Access Terminals
Payment terminals and access-control devices rely on the STM32L496RGT3's AES-256 hardware crypto accelerator, true random number generator, and secure boot via ST's SBSFU (Secure Boot and Firmware Update) library for PCI PTS compliance. The Cortex-M4 FPU accelerates RSA/ECC operations while keeping cryptographic key material in protected Flash regions. USB OTG FS supports PIN pad peripherals, while segment-LCD displays transaction amounts. Low-power Shutdown mode (25 nA) preserves battery backup during shipping/storage between deployments, ensuring devices arrive with full charge.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L496RGT3 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32L496RGT6 | STM32L4A6RGT | STM32L476RGT6 |
|---|---|---|---|---|
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core / Max Frequency | Cortex-M4 / 80 MHz | Cortex-M4 / 80 MHz | Cortex-M4 / 80 MHz | Cortex-M4 / 80 MHz |
| Flash / SRAM | 1 MB / 320 KB | 1 MB / 320 KB | 1 MB / 320 KB | 1 MB / 320 KB |
| AES-256 Hardware Crypto | Yes | Yes | Yes | No |
| True Random Number Generator (TRNG) | Yes | Yes | Yes | No |
| Segment-LCD Controller | Yes (8x40 / 4x44) | Yes (8x40 / 4x44) | Yes (8x40 / 4x44) | No |
| USB OTG FS | Yes | Yes | Yes | Yes |
| External SMPS Support | Yes | Yes | Yes | No |
| Shutdown Current | 25 nA | 25 nA | 25 nA | 30 nA |
| Temperature Grade | -40 to +125 C | -40 to +85 C | -40 to +125 C | -40 to +85 C |
Bảo phân biệt quan trọng
- AES-256 hardware encryption with TRNG for security applications (vsSTM32L476RGT6)
- Integrated segment-LCD controller with step-up converter (vsSTM32L476RGT6)
- Extended temperature grade for industrial and outdoor applications (vsSTM32L496RGT6)
- External SMPS support for high-efficiency core power (vsSTM32L476RGT6)
Ghi chú thiết kế
Estimated: at 80 MHz Run mode with all peripherals off, the STM32L496RGT3 draws approximately 10 mA from VDD (100 uA/MHz typical). To minimize active power, use the Range 2 internal regulator (up to 26 MHz) when full performance is not required, and enable peripheral clock gates in RCC when peripherals are idle. For shutdown mode (25 nA typical), ensure all GPIOs are configured as analog inputs to prevent floating-pin leakage currents of ~1 uA each that can dominate standby budget.
Decouple each VDD pin with a 100 nF X7R ceramic placed within 3 mm of the pin. VDDA requires both a 100 nF and a 1 uF ceramic, with VREF+ tied to VDDA through a ferrite bead if a separate analog reference is used. VBAT pin should have a 100 nF decoupling cap and (if used) a series Schottky diode to prevent reverse current into the main VDD domain. Place the 32.768 kHz crystal within 5 mm of OSC32_IN/OSC32_OUT with grounded guard ring to minimize RTC drift from digital switching noise.
Do not enable USB OTG FS without 1.5 kohm pull-up on DP — the host will not enumerate. The segment-LCD controller's step-up converter requires an external capacitor on the VLCD pin (typically 1 uF) — omitting it reduces display contrast. The Cortex-M4 FPU requires initialization via CPACR register before first use, otherwise floating-point instructions trigger a HardFault. When using Stop mode with RTC wakeup, configure the EXTI line for RTC alarm BEFORE entering Stop mode or the wakeup event will be missed.
At maximum 80 MHz operation across full temperature (-40 to +125 C), the 64-LQFP package dissipates approximately 300 mW steady-state. The junction-to-ambient thermal resistance (theta_JA) for the 64-LQFP10 package is approximately 45 C/W on a standard 4-layer JEDEC test board. For continuous 125 C operation with 300 mW dissipation, the junction-to-ambient delta is approximately 13.5 C, well within the 150 C absolute maximum. No external heatsink is required for typical use cases; however, ensure the PCB copper pour under the exposed pad (if present) is maximized for best thermal transfer.
Thông tin tuân thủ
RoHS and REACH compliant per ST product page. The STM32L496RGT3 is not AEC-Q100 qualified (industrial grade); automotive designs should select the STM32L496RGT3A variant or similar AEC-Q100 part.
