Overview
The STM32L496QEI6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This device operates at a frequency of up to 80 MHz and features a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a memory protection unit (MPU) for enhanced application security.
The microcontroller is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and interfaces. It is suitable for applications requiring high performance, low power consumption, and advanced features such as encryption hardware accelerators and rich analog peripherals.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Flash Memory | Up to 1 MB, 2 banks read-while-write, proprietary code readout protection |
| SRAM | 320 KB, including 64 KB with hardware parity check |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to 85 °C / 125 °C |
| Timers | 16 timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, 2x low-power 16-bit timers |
| ADCs | Up to three fast 12-bit ADCs (5 Msps), up to 16-bit with hardware oversampling |
| DACs | 2x 12-bit DAC output channels, low-power sample and hold |
| Communication Interfaces | USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 5x USART, 2x CAN, SDMMC, etc. |
| Package Options | LQFP64, LQFP100, LQFP144, UFBGA132, UFBGA169, WLCSP100, WLCSP115 |
Key Features
- Ultra-low-power with FlexPowerControl, offering various power-saving modes such as Shutdown, Standby, and Stop modes.
- Rich analog peripherals including 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Advanced communication interfaces: USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 5x USART, 2x CAN, SDMMC, and more.
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter and up to 24 capacitive sensing channels.
- Encryption hardware accelerators: HASH (SHA-256).
- Dedicated Chrom-ART Accelerator for enhanced graphic content creation (DMA2D).
- True random number generator, CRC calculation unit, and 96-bit unique ID.
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™.
Applications
The STM32L496QEI6 is versatile and can be used in a wide range of applications, including:
- Industrial automation and control systems.
- Medical devices requiring low power consumption and high performance.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, especially those requiring advanced motor control and communication interfaces.
- IoT devices that need efficient power management and robust security features.
Q & A
- What is the core architecture of the STM32L496QEI6?
The STM32L496QEI6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU), operating at up to 80 MHz.
- What are the power supply options for this microcontroller?
The device can operate from a 1.71 V to 3.6 V power supply using an internal LDO regulator, or from 1.05 to 1.32 V using an external SMPS supply.
- What are the key power-saving modes available?
The device offers Shutdown, Standby, Stop 2, and other low-power modes to minimize power consumption.
- What types of memory does the STM32L496QEI6 have?
The device includes up to 1 MB of flash memory, 320 KB of SRAM, and an external memory interface for static memories.
- What are the main communication interfaces available?
The device features USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 5x USART, 2x CAN, SDMMC, and other interfaces.
- Does the STM32L496QEI6 support any encryption hardware accelerators?
Yes, it includes a HASH hardware accelerator (SHA-256) for enhanced security.
- What is the temperature range for the STM32L496QEI6?
The device operates in the -40 °C to 85 °C / 125 °C temperature range.
- What types of timers are available on the STM32L496QEI6?
The device includes 16 timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, and 2x low-power 16-bit timers.
- Does the STM32L496QEI6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What development tools are available for the STM32L496QEI6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
