STM8S903K3 STMicroelectronics, STM8S903K3 Datasheet - Page 66

• Manufacturer Part Number: STM8S903K3
• Description: 16 MHz STM8S 8-bit MCU, up to 8 Kbytes Flash, 1 Kbyte RAM, 640 bytes EEPROM
• Manufacturer: STMicroelectronics

Specifications of STM8S903K3

• Program Memory: 8 Kbytes Flash; data retention 20 years at 55 °C after 10 kcycles
• Data Memory: 640 bytes true data EEPROM; endurance 300 kcycles
• Ram: 1 Kbytes
• Advanced Control Timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion and flexible synchronization

Electrical characteristics
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Symbol
Symbol
f
V
V
I
(1)
f
HSE_ext
LEAK_HSE
HSE
HSEH
HSEL
Data based on characterization results, not tested in production.
(1)
(1)
External clock sources and timing characteristics
HSE user external clock
Subject to general operating conditions for V
HSE crystal/ceramic resonator oscillator
The HSE clock can be supplied with a 1 to 16 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...).
Parameter
External high speed
oscillator frequency
Parameter
User external clock source
frequency
OSCIN input pin high level
voltage
OSCIN input pin low level
voltage
OSCIN input leakage current
V
V HSEL
Table 34: HSE user external clock characteristics
HSEH
External clock
source
Table 35: HSE oscillator characteristics
Figure 18: HSE external clocksource
Conditions
DocID15590 Rev 6
OSCIN
Conditions
V
SS
< V
IN
< V
DD
Min
DD
1
and T
Typ
Min
A
.
0.7 x V
V
-1
Max
0
SS
f HSE
DD
STM8S903K3 STM8S903F3
STM8
Max
16
V
0.3 x V
DD
+ 0.3 V
16
+1
DD
Unit
Unit
MHz
MHz
μA
V