STM8L151C3 STMicroelectronics, STM8L151C3 Datasheet - Page 66

• Manufacturer Part Number: STM8L151C3
• Description: STM8L-Ultra Low Power-8 bits Microcontrollers
• Manufacturer: STMicroelectronics

Specifications of STM8L151C3

• Operating Power Supply: 1.65 to 3.6 V (without BOR), 1.8 to 3.6 V (with BOR)
• Temperature Range: -40 to 85 or 125 °C
• 5 Low Power Modes: Wait, Low power run, Low power wait, Active-halt with RTC, Halt
• Ultralow Leakage Per I/0: 50 nA
• Fast Wakeup From Halt: 5 μs
• Max Freq: 16 MHz, 16 CISC MIPS peak

Electrical parameters
Table 27.
1. C=
2. The oscillator selection can be optimized in terms of supply current using a high quality resonator with small R
3. Data guaranteed by Design. Not tested in production.
4. t
Figure 16. HSE oscillator circuit diagram
66/111
t
SU(HSE)
Symbol
I
R
L
C
DD(HSE)
m
m
m
Refer to crystal manufacturer for more details
value is measured for a standard crystal resonator and it can vary significantly with the crystal manufacturer.
f
C
SU(HSE)
HSE
R
g
Resonator
(1)
m
C
F
L1
C
(4)
=
O
C
is the startup time measured from the moment it is enabled (by software) to a stabilized 16 MHz oscillation. This
L2
High speed external oscillator
frequency
Feedback resistor
Recommended load capacitance
HSE oscillator power consumption
Oscillator transconductance
Startup time
is approximately equivalent to 2 x crystal C
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 startup stabilization time. Refer to the crystal resonator manufacturer for more details
(frequency, package, accuracy...).
HSE oscillator characteristics
HSE oscillator critical g
R
C
C
g
g
m
m
m
L1
mcrit
: Motional resistance (see crystal specification), L
: Motional capacitance (see crystal specification), Co: Shunt capacitance (see crystal specification),
>> g
=C
L2
mcrit
=C: Grounded external capacitance
=
(
2
Parameter
×
Π
C
C
×
L1
L2
f
HSE
)
2
Resonator
×
m
R
m
formula
(
(2)
2Co
Doc ID 018780 Rev 3
OSC_IN
OSC_OUT
+
V
LOAD
f
f
OSC
OSC
DD
C
Conditions
C = 20 pF,
C = 10 pF,
m
)
2
.
: Motional inductance (see crystal specification),
is stabilized
= 16 MHz
=16 MHz
R
g
3.5
F
m
Min
1
(3)
Consumption
Typ
200
control
20
1
STM8L151x2, STM8L151x3
f
HSE
to core
0.46 (stabilized)
0.7 (stabilized)
2.5 (startup)
2.5 (startup)
Max
16
STM8
m
value.
(3)
(3)
mA/V
MHz
Unit
mA
ms
kΩ
pF