STM32L152-SK/IAR STMicroelectronics, STM32L152-SK/IAR Datasheet - Page 64

• Manufacturer Part Number: STM32L152-SK/IAR
• Description: MCU, MPU & DSP Development Tools STM32L152VBT6 IAR 32KB Workbench
• Manufacturer: STMicroelectronics
• Series: IAR Kickstartr
• Type: MCUr

Specifications of STM32L152-SK/IAR

• Contents: Board, CD
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STM32L

Electrical characteristics
Note:
Caution:
64/107
For C
15 pF range selected to match the requirements of the crystal or resonator (see
C
capacitance which is the series combination of C
Load capacitance C
C
between 2 pF and 7 pF.
To avoid exceeding the maximum value of C
to use a resonator with a load capacitance C
capacitance of 12.5 pF.
Example: if you choose a resonator with a load capacitance of C
then C
Figure 17. Typical application with a 32.768 kHz crystal
L1
stray
and C
L1
is the pin capacitance and board or trace PCB-related capacitance. Typically, it is
L1
and C
= C
L2,
L2
are usually the same size. The crystal manufacturer typically specifies a load
L2
= 8 pF.
, it is recommended to use high-quality ceramic capacitors in the 5 pF to
L
has the following formula: C
Doc ID 17659 Rev 4
L1
L
7 pF. Never use a resonator with a load
and C
L1
L
= C
and C
L2
L1
(15 pF) it is strongly recommended
x C
L2
.
STM32L151xx, STM32L152xx
L2
/ (C
L
= 6 pF and C
L1
+ C
L2
) + C
stray
Figure
stray
= 2 pF,
where
17).