STM8S207C6T3 STMICROELECTRONICS [STMicroelectronics], STM8S207C6T3 Datasheet - Page 65

• Manufacturer Part Number: STM8S207C6T3
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM8S207xx, STM8S208xx
10.3.3
External clock sources and timing characteristics
HSE user external clock
Subject to general operating conditions for V
Table 31.
1. Data based on characterization results, not tested in production.
Figure 16. HSE external clock source
HSE crystal/ceramic resonator oscillator
The HSE clock can be supplied with a 1 to 24 MHz crystal/ceramic resonator oscillator. All
the information given in this paragraph is based on characterization results with specified
typical external components. In the application, the resonator and the load capacitors have
to be placed as close as possible to the oscillator pins in order to minimize output distortion
and start-up stabilization time. Refer to the crystal resonator manufacturer for more details
(frequency, package, accuracy...).
I
V
LEAK_HSE
V
Symbol
f
HSE_ext
HSEH
HSEL
(1)
(1)
V
V
HSEH
HSEL
User external clock source
frequency
OSCIN input pin high level
voltage
OSCIN input pin low level
voltage
OSCIN input leakage
current
HSE user external clock characteristics
External clock
source
Parameter
OSCIN
Doc ID 14733 Rev 9
V
SS
Conditions
< V
DD
IN
< V
and T
DD
A
.
0.7 x V
Min
V
-1
0
SS
f
DD
HSE
STM8
Electrical characteristics
Typ
V
0.3 x V
DD
Max
24
+ 0.3 V
1
DD
65/103
MHz
Unit
µA
V