This is information on a product in full production.

June 2016 DocID025608 Rev 4 1/131

STM32F378xx

ARM

Cortex

-M4 32b MCU+FPU, up to 256KB Flash+32KB SRAM,

timers, 4 ADCs(16-bit Sig. Delta / 12-bit SAR), 3 DACs, 2 comp., 1.8 V

Datasheet - production data

Features

• Core: ARM

32-bit Cortex

-M4 CPU (72 MHz

max), single-cycle multiplication and HW

division, DSP instruction with FPU (floating-

point unit) and MPU (memory protection unit)

• 1.25 DMIPS/MHz (Dhrystone 2.1)

• Memories

– 256 Kbytes of Flash memory

– 32 Kbytes of SRAM with HW parity check

• CRC calculation unit

• Reset and power management

– Supply: V

= 1.8 V ± 8%,

DDA

= 1.65 - 3.6 V

– External POR pin

– Low power modes: Sleep and Stop

• Clock management

– 4 to 32 MHz crystal oscillator

– 32 kHz oscillator for RTC with calibration

– Internal 8 MHz RC with x16 PLL option

– Internal 40 kHz oscillator

• Up to 84 fast I/Os

– All mappable on external interrupt vectors

– Up to 45 I/Os with 5 V tolerant capability

• 12-channel DMA controller

• One 12-bit, 1.0 µs ADC (up to 16 channels)

– Conversion range: 0 to 3.6 V

– Separate analog supply from 2.4 up to 3.6

• Up to three 16-bit Sigma Delta ADC

– Separate analog supply from 2.2 to 3.6 V,

up to 21 single/ 11 diff channels

• Up to three 12-bit DAC channels

– Separate analog supply from 2.2 to 3.6 V

• Two fast rail-to-rail analog comparators with

programmable input and output with analog

supply from 1.65 to 3.6 V

• Up to 24 capacitive sensing channels

• 17 timers

– Two 32-bit timers and three 16-bit timers

with up to 4 IC/OC/PWM or pulse counters

– Two 16-bit timers with up to 2 IC/OC/PWM

or pulse counters

– Four 16-bit timers with up to 1 IC/OC/PWM

or pulse counter

– Independent and system watchdog timers

– SysTick timer: 24-bit down counter

– Three 16-bit basic timers to drive the DAC

• Calendar RTC with Alarm and periodic wakeup

from Stop

• Communication interfaces

– CAN interface (2.0B Active)

–Two I

Cs supporting Fast Mode Plus

(1 Mbit/s) with 20 mA current sink,

SMBus/PMBus, wakeup from STOP

– Three USARTs supporting synchronous

mode, modem control, ISO/IEC 7816, LIN,

IrDA, auto baud rate, wakeup feature

– Three SPIs (18 Mbit/s) with 4 to 16

programmable bit frames, muxed I2S

– HDMI-CEC bus interface

• Serial wire devices, JTAG, Cortex

-M4 ETM

• 96-bit unique ID

Table 1. Device summary

Reference Part numbers

STM32F378xx

STM32F378CC, STM32F378RC,

STM32F378VC

LQFP64 (10 × 10 mm)

LQFP100 (14 × 14 mm)

LQFP48 (7 × 7 mm)

)%*$

UFBGA100

(7 x 7 mm)

WLCSP66

(0.400 mm)

www.st.com

Contents STM32F378xx

2/131 DocID025608 Rev 4

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 ARM® Cortex®-M4 core with embedded Flash and SRAM . . . . . . . . . . . 13

3.2 Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.4 Cyclic redundancy check (CRC) calculation unit . . . . . . . . . . . . . . . . . . . 14

3.5 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.6 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7 Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7.1 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.7.3 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.8 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.9 General-purpose input/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.10 Direct memory access (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.11 Interrupts and events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.11.1 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . 16

3.11.2 Extended interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . 16

3.12 12-bit analog-to-digital converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.12.1 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.12.2 Internal voltage reference (V

REFINT

) . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.12.3 V

BAT

battery voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.13 16-bit sigma delta analog-to-digital converters (SDADC) . . . . . . . . . . . . . 18

3.14 Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.15 Fast comparators (COMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.16 Touch sensing controller (TSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.17 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.17.1 General-purpose timers (TIM2 to TIM5, TIM12 to TIM17, TIM19) . . . . . 22

3.17.2 Basic timers (TIM6, TIM7, TIM18) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22