STM32F100RET6B STMicroelectronics, STM32F100RET6B Datasheet - Page 51

• Manufacturer Part Number: STM32F100RET6B
• Description: 16/32-BITS MICROS
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32F100RET6B

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 24MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
• Number Of I /o: 51
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

STM32F100xC, STM32F100xD, STM32F100xE
Note:
Caution:
Table 23.
1. Based on characterization, not tested in production.
2. Refer to the note and caution paragraphs above the table.
3. The oscillator selection can be optimized in terms of supply current using an high quality resonator with small R
4.
t
SU(LSE)
Symbol
example MSIV-TIN32.768 kHz. Refer to crystal manufacturer for more details
reached. This value is measured for a standard crystal and it can vary significantly with the crystal manufacturer
C
t
SU(LSE)
C
R
g
L2
I
L1
2
m
F
(2)
(4)
is the startup time measured from the moment it is enabled (by software) to a stabilized 32.768 kHz oscillation is
For C
15 pF range selected to match the requirements of the crystal or resonator. C
usually the same size. The crystal manufacturer typically specifies a load 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
LSE oscillator characteristics (f
Feedback resistor
Recommended load capacitance
versus equivalent serial
resistance of the crystal (R
LSE driving current
Oscillator transconductance
Startup time
stray
L1
is the pin capacitance and board or trace PCB-related capacitance. Typically, it is
L1
and C
= C
Parameter
L2
L2
= 8 pF.
it is recommended to use high-quality ceramic capacitors in the 5 pF to
L
has the following formula: C
S
)
(3)
L1
Doc ID 15081 Rev 5
and C
LSE
stabilized
V
DD
= 32.768 kHz)
L2
is
.
V
Conditions
R
V
DD
S
L1
IN
L
= 30 KΩ
≤
= 3.3 V
= V
and C
T
T
T
T
7 pF. Never use a resonator with a load
T
T
T
L
T
SS
A
A
A
A
A
A
A
A
= C
= -10 °C
= -20 °C
= -30 °C
= -40 °C
= 50 °C
= 25 °C
= 10 °C
(1)
= 0 °C
L2
L1
(15 pF) it is strongly recommended
x C
L2
/ (C
Min
Electrical characteristics
L
5
= 6 pF, and C
L1
+ C
Typ
1.5
2.5
10
17
32
60
5
4
6
L2
) + C
L1
Max
and C
S
1.4
15
stray
stray
value for
= 2 pF,
L2,
where
µA/V
Unit
MΩ
pF
µA
51/97
s
are