This is information on a product in full production.
April 2019 DS9716 Rev 11 1/139
STM32F401xB STM32F401xC
Arm
®
Cortex
®
-M4 32-bit MCU+FPU, 105 DMIPS,
256KB Flash / 64KB RAM, 11 TIMs, 1 ADC, 11 comm. interfaces
Datasheet - production data
Features
• Dynamic efficiency line with BAM (batch
acquisition mode)
– 1.7 V to 3.6 V power supply
– -40 °C to 85/105/125 °C temperature range
• 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 84 MHz,
memory protection unit, 105 DMIPS/
1.25 DMIPS/MHz (Dhrystone 2.1), and DSP
instructions
• Memories
– Up to 256 Kbytes of Flash memory
– 512 bytes of OTP memory
– Up to 64 Kbytes of SRAM
• Clock, reset and supply management
– 1.7 V to 3.6 V application supply and I/Os
– POR, PDR, PVD and BOR
– 4-to-26 MHz crystal oscillator
– Internal 16 MHz factory-trimmed RC
– 32 kHz oscillator for RTC with calibration
– Internal 32 kHz RC with calibration
• Power consumption
– Run: 128 µA/MHz (peripheral off)
– Stop (Flash in Stop mode, fast wakeup
time): 42 µA typ @ 25 °C;
65 µA max @25 °C
– Stop (Flash in Deep power down mode,
slow wakeup time): down to 10 µA typ@
25 °C; 28 µA max @25 °C
– Standby: 2.4 µA @25 °C / 1.7 V without
RTC; 12 µA @85 °C @1.7 V
–V
BAT
supply for RTC: 1 µA @25 °C
• 1×12-bit, 2.4 MSPS A/D converter: up to 16
channels
• General-purpose DMA: 16-stream DMA
controllers with FIFOs and burst support
• Up to 11 timers: up to six 16-bit, two 32-bit
timers up to 84 MHz, each with up to
4 IC/OC/PWM or pulse counter and quadrature
(incremental) encoder input, two watchdog
timers (independent and window) and a
SysTick timer
• Debug mode
– Serial wire debug (SWD) & JTAG
interfaces
–Cortex
®
-M4 Embedded Trace Macrocell™
• Up to 81 I/O ports with interrupt capability
– All IO ports 5 V tolerant
– Up to 78 fast I/Os up to 42 MHz
• Up to 11 communication interfaces
– Up to 3 × I
2
C interfaces (1Mbit/s,
SMBus/PMBus)
– Up to 3 USARTs (2 x 10.5 Mbit/s, 1 x
5.25 Mbit/s), ISO 7816 interface, LIN, IrDA,
modem control)
– Up to 4 SPIs (up to 42 Mbits/s at f
CPU
= 84
MHz), SPI2 and SPI3 with muxed full-
duplex I
2
S to achieve audio class accuracy
via internal audio PLL or external clock
– SDIO interface
• Advanced connectivity
– USB 2.0 full-speed device/host/OTG
controller with on-chip PHY
• CRC calculation unit
• 96-bit unique ID
• RTC: subsecond accuracy, hardware calendar
• All packages are ECOPACK2
Table 1. Device summary
Reference Part number
STM32F401xB
STM32F401CB, STM32F401RB,
STM32F401VB
STM32F401xC
STM32F401CC, STM32F401RC,
STM32F401VC
LQFP10
0 (14X14 mm)
LQFP64 (10×10 mm)
)%*$
UFQFPN48
(7×7 mm)
UFBGA100
(7x7 mm)
WLCSP49
(2.965x2.965 mm)
www.st.com
Contents STM32F401xB STM32F401xC
2/139 DS9716 Rev 11
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Compatibility with STM32F4 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Arm
®
Cortex
®
-M4 with FPU core with embedded Flash and SRAM . . . . 15
3.2 Adaptive real-time memory accelerator (ART Accelerator™) . . . . . . . . . 15
3.3 Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . . 16
3.6 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.7 Multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.8 DMA controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.9 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . . 17
3.10 External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.11 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.12 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.13 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.14 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.14.1 Internal reset ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.14.2 Internal reset OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.15 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.15.1 Regulator ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.15.2 Regulator OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.15.3 Regulator ON/OFF and internal power supply supervisor availability . . 24
3.16 Real-time clock (RTC) and backup registers . . . . . . . . . . . . . . . . . . . . . . 24
3.17 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.18 V
BAT
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.19 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.19.1 Advanced-control timers (TIM1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.19.2 General-purpose timers (TIMx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
