This is information on a product in full production.
July 2024 DS10198 Rev 11 1/270
STM32L476xx
Ultra-low-power Arm
®
Cortex
®
-M4 32-bit MCU+FPU, 100DMIPS,
up to 1MB flash, 128 KB SRAM, USB OTG FS, LCD, ext. SMPS
Datasheet - production data
Features
Includes ST state-of-the-art patented
technology
• 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 V
BAT
mode: supply for RTC and
32x32-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
UFBGA144 (10 × 10)
LQFP144 (20 × 20)
LQFP100 (14
×
14)
LQFP64 (10 × 10)
UFBGA132 (7 × 7)
WLCSP72
WLCSP99
WLCSP81
Product label
www.st.com
STM32L476xx
2/270 DS10198 Rev 11
– 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
Table 1. Device summary
Reference Part numbers
STM32L476xx
STM32L476RC, STM32L476VC, STM32L476JE, STM32L476ME, STM32L476QE,
STM32L476RE, STM32L476VE, STM32L476ZE, STM32L476JG, STM32L476MG,
STM32L476QG, STM32L476RG, STM32L476VG, STM32L476ZG
