Figure 14. High-Speed External Clock Source Ac Timing Diagram - STMicroelectronics STM32L151QCH6 Manual

Electrical characteristics
Table 26. High-speed external user clock characteristics
Symbol
V
HSEH
V
HSEL
t
w(HSEH)
t
w(HSEL)
t
r(HSE)
t
f(HSE)
C
in(HSE)
1. Guaranteed by design, not tested in production.
76/133
Parameter
OSC_IN input pin high level voltage
OSC_IN input pin low level voltage
OSC_IN high or low time
OSC_IN rise or fall time
OSC_IN input capacitance

Figure 14. High-speed external clock source AC timing diagram

DocID026119 Rev 5
STM32L151xC/C-A STM32L152xC/C-A
(1)
Conditions Min
0.7V
DD
V
SS
12
-
-
-
(continued)
Typ Max Unit
- V
DD
V
- 0.3V
DD
- -
ns
- 20
2.6 - pF