STM32F372VCH6 STMicroelectronics, STM32F372VCH6 Datasheet - Page 71

• Manufacturer Part Number: STM32F372VCH6
• Description: ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
• Manufacturer: STMicroelectronics

Specifications of STM32F372VCH6

• Product Category: ARM Microcontrollers - MCU
• Rohs: yes
• Core: ARM Cortex M4
• Data Bus Width: 32 bit

STM32F37x
Figure 12. High-speed external clock source AC timing diagram
Low-speed external user clock generated from an external source
In bypass mode the LSE oscillator is switched off and the input pin is a standard GPIO.
The external clock signal has to respect the I/O characteristics in
the recommended clock input waveform is shown in
Table 39.
1. Guaranteed by design, not tested in production.
Symbol
t
t
f
w(LSEH)
LSE_ext
V
w(LSEL)
V
t
t
r(LSE)
f(LSE)
LSEH
LSEL
User External clock source
frequency
OSC32_IN input pin high level
voltage
OSC32_IN input pin low level
voltage
OSC32_IN high or low time
OSC32_IN rise or fall time
Low-speed external user clock characteristics
Parameter
Doc ID 022691 Rev 3
(1)
Conditions
Figure
0.7V
13.
Min
V
450
SS
DD
Electrical characteristics
Section
32.768
Typ
6.3.14. However,
0.3V
1000
Max
V
50
DD
DD
71/128
Unit
kHz
ns
V