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STM32F205RFT6 데이터시트(PDF) 129 Page - STMicroelectronics

부품명 STM32F205RFT6
상세설명  ARM®-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32F205RFT6 데이터시트(HTML) 129 Page - STMicroelectronics

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STM32F20xxx
Electrical characteristics
183
Figure 55. Power supply and reference decoupling (VREF+ connected to VDDA)
1. VREF+ and VREF– inputs are both available on UFBGA176 package. VREF+ is also available on all packages
except for LQFP64. When VREF+ and VREF– are not available, they are internally connected to VDDA and
VSSA.
6.3.21
DAC electrical characteristics
Table 68. DAC characteristics
Symbol
Parameter
Min
Typ
Max
Unit
Comments
VDDA
Analog supply voltage
1.8(1)
-3.6
V
-
VREF+
Reference supply voltage 1.8(1)
-3.6
V
VREF+ ≤VDDA
VSSA
Ground
0
-
0
V
-
RLOAD(2)
Resistive load with buffer
ON
5-
-
k
Ω
-
RO(2)
Impedance output with
buffer OFF
--
15
k
Ω
When the buffer is OFF, the Minimum
resistive load between DAC_OUT and
VSS to have a 1% accuracy is 1.5 MΩ
CLOAD(2)
Capacitive load
-
-
50
pF
Maximum capacitive load at DAC_OUT
pin (when the buffer is ON).
DAC_OUT
min(2)
Lower DAC_OUT voltage
with buffer ON
0.2
-
-
V
It gives the maximum output excursion
of the DAC.
It corresponds to 12-bit input code
(0x0E0) to (0xF1C) at VREF+ = 3.6 V
and (0x1C7) to (0xE38) at VREF+ =
1.8 V
DAC_OUT
max(2)
Higher DAC_OUT voltage
with buffer ON
--
VDDA – 0.2
V



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