STM8S207C6T3B STMICROELECTRONICS [STMicroelectronics], STM8S207C6T3B Datasheet - Page 64

• Manufacturer Part Number: STM8S207C6T3B
• Description: Performance line, 24 MHz STM8S 8-bit MCU, up to 128 KB Flash
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
10.3.3
64/103
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
Doc ID 14733 Rev 12
OSCIN
V
SS
Conditions
< V
DD
IN
< V
and T
DD
A
.
0.7 x V
Min
V
-1
0
SS
f
DD
HSE
STM8S207xx, STM8S208xx
STM8
Typ
V
0.3 x V
DD
Max
24
+ 0.3 V
1
DD
MHz
Unit
µA
V