32-bit MCU+FPU
Description
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 VBAT 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%)
LQFP144 (20 × 20) LQFP100 (14 × 14) LQFP64 (10 × 10)
UFBGA132 (7 × 7) UFBGA144 (10 × 10)
WLCSP72 WLCSP81 WLCSP99
– 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 16bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer...
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