STM32F100RB STMicroelectronics, STM32F100RB Datasheet - Page 47

• Manufacturer Part Number: STM32F100RB
• Description: Mainstream Value line, ARM Cortex-M3 MCU with 128 Kbytes Flash, 24 MHz CPU, motor control and CEC functions
• Manufacturer: STMicroelectronics

Specifications of STM32F100RB

• Peripherals Supported: timers, ADC, SPIs, I2Cs, USARTs and DACs
• Conversion Range: 0 to 3.6 V
• 16-bit, 6-channel Advanced-control Timer: up to 6 channels for PWM output, dead time generation and emergency stop
• Systick Timer: 24-bit downcounter

STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB
Table 21.
1. Resonator characteristics given by the crystal/ceramic resonator manufacturer.
2. Based on characterization, not tested in production.
3. It is recommended to use high-quality external ceramic capacitors in the 5 pF to 25 pF range (typ.),
4. The relatively low value of the RF resistor offers a good protection against issues resulting from use in a
5. t
Figure 20. Typical application with an 8 MHz crystal
1. R
Symbol
t
f
SU(HSE)
OSC_IN
C
designed for high-frequency applications, and selected to match the requirements of the crystal or
resonator. C
capacitance which is the series combination of C
included (10 pF can be used as a rough estimate of the combined pin and board capacitance) when sizing
C
humid environment, due to the induced leakage and the bias condition change. However, it is
recommended to take this point into account if the MCU is used in tough humidity conditions.
oscillation is reached. This value is measured for a standard crystal resonator and it can vary significantly
with the crystal manufacturer
C
SU(HSE)
R
g
L2
(5)
Resonator with
integrated capacitors
i
L1
EXT
L1
2
m
F
(3)
and C
value depends on the crystal characteristics.
is the startup time measured from the moment it is enabled (by software) to a stabilized 8 MHz
Oscillator frequency
Feedback resistor
Recommended load capacitance
versus equivalent serial
resistance of the crystal (R
HSE driving current
Oscillator transconductance
Startup time
L2
HSE 4-24 MHz oscillator characteristics
.
L1
and C
C L2
C L1
L2,
Parameter
are usually the same size. The crystal manufacturer typically specifies a load
8 MH z
resonator
R EXT (1)
Doc ID 16455 Rev 6
S
OSC_OU T
OSC_IN
)
(4)
L1
R
V
V
load
Startup
V
R F
DD
IN
S
and C
DD
= 30 Ω
= V
= 3.3 V
Conditions
is stabilized
controlled
L2
SS
Bias
gain
. PCB and MCU pin capacitance must be
with 30 pF
(1)(2)
STM32F10xxx
Electrical characteristics
Min
25
f HSE
4
Typ
200
30
8
2
Max
24
1
ai14128b
mA/V
MHz
Unit
mA
ms
47/87
kΩ
pF