STM8L152C4 STMicroelectronics, STM8L152C4 Datasheet - Page 78

• Manufacturer Part Number: STM8L152C4
• Description: SM8L-Ultra Low Power-8 bit Microcontrollers
• Manufacturer: STMicroelectronics

Specifications of STM8L152C4

• Temp. Range: - 40 °C to 85, 105 or 125 °C
• 5 Low Power Modes: Wait, Low power run (5.1 μA), Low power wait (3 μA), Active-halt with full RTC (1.3 μA), Halt (350 nA)
• Consumption: 195 μA/MHz+440μA
• Ultralow Leakage Per I/0: 50 nA
• Fast Wakeup From Halt: 4.7 μs
• Lcd: up to 4x28 segments w/ step-up converter
• 4 Channels; Supported Peripherals: ADC, DAC, SPI, I2C, USART, timers
• 2 Watchdogs: 1 Window, 1 Independent

Electrical parameters
Table 31.
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 17. HSE oscillator circuit diagram
78/126
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
C
C
L1
L2
f
HSE
2
Resonator
m
R
m
formula
(2)
2Co
OSC_IN
OSC_OUT
Doc ID 15962 Rev 9
+
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
STM8L151xx, STM8L152xx
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
k
pF