STM32F100RET6B STMicroelectronics, STM32F100RET6B Datasheet - Page 50

• 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

Electrical characteristics
50/97
Table 22.
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 13. Typical application with an 8 MHz crystal
1. R
Low-speed external clock generated from a crystal/ceramic resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on characterization
results obtained with typical external components specified in
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 on the resonator characteristics (frequency,
package, accuracy).
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 15081 Rev 5
S
OSC_OU T
OSC_IN
)
(4)
L1
R
V
V
load
Startup
STM32F100xC, STM32F100xD, STM32F100xE
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
Table
Min
25
f HSE
4
23. In the application,
Typ
200
30
8
2
Max
24
1
ai14128b
mA/V
MHz
Unit
mA
ms
kΩ
pF