STM32L476MGY6TR ARM Microcontrollers – MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 1 Mbyte of Flash LCD, USB OTG, DFSD
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | STMicroelectronics |
| Product Category: | ARM Microcontrollers - MCU |
| RoHS: | Details |
| Series: | STM32L476MG |
| Mounting Style: | SMD/SMT |
| Package/Case: | CSP-81 |
| Core: | ARM Cortex M4 |
| Program Memory Size: | 1 MB |
| Data Bus Width: | 32 bit |
| ADC Resolution: | 12 bit |
| Maximum Clock Frequency: | 80 MHz |
| Number of I/Os: | 65 I/O |
| Data RAM Size: | 128 kB |
| Supply Voltage - Min: | 1.71 V |
| Supply Voltage - Max: | 3.6 V |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 85 C |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Analogue Supply Voltage: | 3.3 V |
| Brand: | STMicroelectronics |
| DAC Resolution: | 12 bit |
| Data RAM Type: | SRAM |
| I/O Voltage: | 3.3 V |
| Interface Type: | CAN, I2C, LPUART, SAI, SPI, USART, USB |
| Number of ADC Channels: | 16 Channel |
| Processor Series: | STM32L476xx |
| Product: | MCU+FPU |
| Product Type: | ARM Microcontrollers - MCU |
| Program Memory Type: | Flash |
| Factory Pack Quantity: | 5000 |
| Subcategory: | Microcontrollers - MCU |
| Tradename: | STM32 |
| Watchdog Timers: | Watchdog Timer, Windowed |
| Unit Weight: | 21.200 mg |
♠ Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 1MB Flash, 128 KB SRAM, USB OTG FS, LCD, ext. SMPS
The STM32L476xx devices are the ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
The STM32L476xx devices embed high-speed memories (Flash memory up to 1 Mbyte, up to 128 Kbyte of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
The STM32L476xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.
The devices offer up to three fast 12-bit ADCs (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM).
• Ultra-low-power with FlexPowerControl
– 1.71 V to 3.6 V power supply
– -40 °C to 85/105/125 °C temperature range
– 300 nA in VBAT mode: supply for RTC and 32×32-bit backup registers
– 30 nA Shutdown mode (5 wakeup pins)
– 120 nA Standby mode (5 wakeup pins)
– 420 nA Standby mode with RTC
– 1.1 µA Stop 2 mode, 1.4 µA with RTC
– 100 µA/MHz run mode (LDO Mode)
– 39 μA/MHz run mode (@3.3 V SMPS Mode)
– Batch acquisition mode (BAM)
– 4 µs wakeup from Stop mode
– Brown out reset (BOR)
– Interconnect matrix
• Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions
• Performance benchmark
– 1.25 DMIPS/MHz (Drystone 2.1)
– 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
• Energy benchmark
– 294 ULPMark™ CP score
– 106 ULPMark™ PP score
• Clock Sources
– 4 to 48 MHz crystal oscillator
– 32 kHz crystal oscillator for RTC (LSE)
– Internal 16 MHz factory-trimmed RC (±1%)
– Internal low-power 32 kHz RC (±5%)
– Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
– 3 PLLs for system clock, USB, audio, ADC
• Up to 114 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V
• RTC with HW calendar, alarms and calibration
• LCD 8× 40 or 4× 44 with step-up converter
• Up to 24 capacitive sensing channels: support touchkey, linear and rotary touch sensors
• 16x timers: 2x 16-bit advanced motor-control, 2x 32-bit and 5x 16-bit general purpose, 2x 16- bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
• Memories
– Up to 1 MB Flash, 2 banks read-while-write, proprietary code readout protection
– Up to 128 KB of SRAM including 32 KB with hardware parity check
– External memory interface for static memories supporting SRAM, PSRAM, NOR and NAND memories
– Quad SPI memory interface
• 4x digital filters for sigma delta modulator
• Rich analog peripherals (independent supply)
– 3x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 µA/Msps
– 2x 12-bit DAC output channels, low-power sample and hold
– 2x operational amplifiers with built-in PGA
– 2x ultra-low-power comparators
• 20x communication interfaces
– USB OTG 2.0 full-speed, LPM and BCD
– 2x SAIs (serial audio interface)
– 3x I2C FM+(1 Mbit/s), SMBus/PMBus
– 5x USARTs (ISO 7816, LIN, IrDA, modem)
– 1x LPUART (Stop 2 wake-up)
– 3x SPIs (and 1x Quad SPI)
– CAN (2.0B Active) and SDMMC interface
– SWPMI single wire protocol master I/F
– IRTIM (Infrared interface)
• 14-channel DMA controller
• True random number generator
• CRC calculation unit, 96-bit unique ID
• Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
• All packages are ECOPACK2® compliant
