STM32F103C8T7 STMicroelectronics, STM32F103C8T7 Datasheet - Page 52

• Manufacturer Part Number: STM32F103C8T7
• Description: MCU 32BIT ARM 64K FLASH 48-LQFP
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32F103C8T7

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 72MHz
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT
• Number Of I /o: 37
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 20K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 48-LQFP
• Featured Product: STM32 Cortex-M3 Companion Products
• Eeprom Size: -
• For Use With: 497-10030 - STARTER KIT FOR STM32497-8511 - KIT STARTER FOR STM32 512K FLASH497-6438 - BOARD EVALUTION FOR STM32 512K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Electrical characteristics
Table 23.
1. Based on characterization, not tested in production.
2. Refer to the note and caution paragraphs below the table, and to the application note AN2867 “Oscillator design guide for
3.
Note:
Caution:
52/99
t
SU(LSE)
Symbol
ST microcontrollers”.
reached. This value is measured for a standard crystal and it can vary significantly with the crystal manufacturer
t
SU(LSE)
R
g
C
I
2
m
F
(3)
is the startup time measured from the moment it is enabled (by software) to a stabilized 32.768 kHz oscillation is
LSE oscillator characteristics (f
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
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
)
L1
Doc ID 13587 Rev 13
and C
V
Conditions
R
LSE
V
stabilized
DD
S
IN
V
= 30 KΩ
DD
= 3.3 V
= 32.768 kHz)
= V
L2
is
.
SS
L1
L
≤
and C
7 pF. Never use a resonator with a load
T
T
T
T
L
T
T
T
T
A
A
A
A
A
A
A
= C
A
(1) (2)
= -10 °C
= -20 °C
= -30 °C
= -40 °C
= 50 °C
= 25 °C
= 10 °C
L2
= 0 °C
L1
(15 pF) it is strongly recommended
x C
STM32F103x8, STM32F103xB
L2
/ (C
L
Min
= 6 pF, and C
5
L1
+ C
Typ
1.5
2.5
10
17
32
60
L2
5
4
6
) + C
L1
and C
Max
stray
1.4
15
stray
= 2 pF,
L2,
where
µA/V
Unit
MΩ
pF
µA
are
s