STM8S005K6 Datasheet, PDF (68/103 Pages) STMicroelectronics – Value line, 16 MHz STM8S 8-bit MCU, 32 Kbytes Flash, data EEPROM,10-bit ADC, timers, UART, SPI, IC

Electrical characteristics
STM8S005K6 STM8S005C6
(2) _{The oscillator selection can be optimized in terms of supply current using a high quality resonator with}
small R_m value. Refer to crystal manufacturer for more details
(3) _{Data based on characterization results, not tested in production.}
(4) _{tSU(HSE) is the start-up time measured from the moment it is enabled (by software) to a stabilized 16}
MHz oscillation is reached. This value is measured for a standard crystal resonator and it can vary
significantly with the crystal manufacturer.
Figure 18: HSE oscillator circuit diagram
Rm
Lm ^CO
Cm
Resonator
CL1
OSCIN
Resonator
CL2
OSCOUT
f _HSE to core
RF
gm
Consumption
control
STM8
9.3.4
HSE oscillator critical g _m equation
g_mcrit= (2 × Π × f_HSE)² × R_m(2Co + C)²
R_m: Notional resistance (see crystal specification)
L_m: Notional inductance (see crystal specification)
C_m: Notional capacitance (see crystal specification)
Co: Shunt capacitance (see crystal specification)
C_L1= C_L2 = C: Grounded external capacitance
g_m >> g_mcrit
Internal clock sources and timing characteristics
Subject to general operating conditions for V_DD and T_A.
High speed internal RC oscillator (HSI)
Table 32: HSI oscillator characteristics
Symbol Parameter
Conditions
Min
Typ Max Unit
f_HSI
Frequency
16
MHz
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