STM32F103ZC

Manufacturer Part NumberSTM32F103ZC
DescriptionMainstream Performance line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, motor control, USB and CAN
ManufacturerSTMicroelectronics
STM32F103ZC datasheet
 

Specifications of STM32F103ZC

CoreARM 32-bit Cortex™-M3 CPUConversion Range0 to 3.6 V
Dma12-channel DMA controllerSupported Peripheralstimers, ADCs, DAC, SDIO, I2Ss, SPIs, I2Cs and USARTs
Systick Timera 24-bit downcounter  
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STM32F103xC, STM32F103xD, STM32F103xE
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).
Table 24.
LSE oscillator characteristics (f
Symbol
Parameter
R
Feedback resistor
F
Recommended load capacitance
C
, C
versus equivalent serial
L1
L2
resistance of the crystal (R
I
LSE driving current
2
g
Oscillator transconductance
m
(3)
t
Startup time
SU(LSE)
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
ST microcontrollers”.
3.
t
is the startup time measured from the moment it is enabled (by software) to a stabilized 32.768 kHz oscillation is
SU(LSE)
reached. This value is measured for a standard crystal and it can vary significantly with the crystal manufacturer
Note:
For C
and C
, it is recommended to use high-quality ceramic capacitors in the 5 pF to
L1
L2
15 pF range selected to match the requirements of the crystal or resonator (see
C
and C
are usually the same size. The crystal manufacturer typically specifies a load
L1
L2,
capacitance which is the series combination of C
Load capacitance C
C
is the pin capacitance and board or trace PCB-related capacitance. Typically, it is
stray
between 2 pF and 7 pF.
Caution:
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
= C
= 8 pF.
L1
L2
= 32.768 kHz)
LSE
Conditions
R
= 30 kΩ
S
)
S
V
= 3.3 V, V
DD
IN
T
A
T
A
T
A
T
V
is
DD
stabilized
T
A
T
A
T
A
T
A
L1
has the following formula: C
L
L
and C
L1
7 pF. Never use a resonator with a load
L
Doc ID 14611 Rev 8
Electrical characteristics
Table
24. In the application,
(1) (2)
Min
Typ
Max
5
= V
1.4
SS
5
= 50 °C
1.5
= 25 °C
2.5
= 10 °C
4
= 0 °C
6
A
= -10 °C
10
= -20 °C
17
= -30 °C
32
= -40 °C
60
and C
.
L2
= C
x C
/ (C
+ C
) + C
L1
L2
L1
L2
(15 pF) it is strongly recommended
L2
= 6 pF, and C
L
stray
Unit
15
pF
µA
µA/V
s
Figure
23).
where
stray
= 2 pF,
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