MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 55

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RM0008
Note:
4.1.3
4.2
4.2.1
Due to the fact that the switch only sinks a limited amount of current (3 mA), the use of
GPIOs PC13 to PC15 in output mode is restricted: the speed has to be limited to 2 MHz with
a maximum load of 30 pF and these IOs must not be used as a current source (e.g. to drive
an LED).
When the backup domain is supplied by V
V
●
●
Voltage regulator
The voltage regulator is always enabled after Reset. It works in three different modes
depending on the application modes.
●
●
●
Power supply supervisor
Power on reset (POR)/power down reset (PDR)
The device has an integrated POR/PDR circuitry that allows proper operation starting
from/down to 2 V.
The device remains in Reset mode when V
V
power on/power down reset threshold, refer to the electrical characteristics of the datasheet.
DD
POR/PDR
is not present), the following functions are available:
PC14 and PC15 can be used as LSE pins only
PC13 can be used as TAMPER pin, RTC Alarm or Second output (refer to section
Section 5.4.2: RTC clock calibration register (BKP_RTCCR) on page
In Run mode, the regulator supplies full power to the 1.8 V domain (core, memories
and digital peripherals).
In Stop mode the regulator supplies low-power to the 1.8 V domain, preserving
contents of registers and SRAM
In Standby Mode, the regulator is powered off. The contents of the registers and SRAM
are lost except for the Standby circuitry and the Backup Domain.
, without the need for an external reset circuit. For more details concerning the
Doc ID 13902 Rev 9
BAT
DD
/V
(analog switch connected to V
DDA
is below a specified threshold,
Power control (PWR)
68).
BAT
because
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