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STM32F334X4 bảng dữ liệu(PDF) 94 Page - STMicroelectronics

tên linh kiện STM32F334X4
Giải thích chi tiết về linh kiện  ARMCortex-M4 32b MCUFPU,up to 64KB Flash,16KB SRAM, 2 ADCs,3 DACs,3 comp.,op-amp, 217ps 10-ch (HRTIM1)
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32F334X4 bảng dữ liệu(HTML) 94 Page - STMicroelectronics

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Electrical characteristics
STM32F334x4 STM32F334x6 STM32F334x8
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DocID025409 Rev 5
Figure 29. Typical connection diagram using the ADC
1. Refer to Table 64 for the values of RAIN.
2. Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the
pad capacitance (roughly 7 pF). A high Cparasitic value will downgrade conversion accuracy. To remedy
this, fADC should be reduced.
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 10: Power-supply
scheme. The 10 nF capacitor should be ceramic (good quality) and it should be placed as
close as possible to the chip.
6.3.20
DAC electrical specifications
Table 69. DAC characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VDDA
Analog supply voltage
-
2.4
-
3.6
V
RLOAD(1) Resistive load
DAC output buffer ON (to VSSA )5
-
-
k
Ω
RLOAD(1) Resistive load
DAC output buffer ON (to VDDA)25
-
-
k
Ω
RO(1)
Output impedance
DAC output buffer OFF
-
-
15
k
Ω
CLOAD(1) Capacitive load
DAC output buffer ON
-
-
50
pF
VDAC_OUT(
1)
Voltage on DAC_OUT
output
Corresponds to 12-bit input code
(0x0E0) to (0xF1C) at VDDA = 3.6 V
and (0x155) and (0xEAB) at VDDA =
2.4 V
0.2
-
VDDA – 0.2
V
DAC output buffer OFF
-0.5
-
mV
--
VDDA– 1LSB
V
IDDA(3)
DAC DC current
consumption in quiescent
mode(2)
With no load, middle code (0x800)
on the input
-
-
380
µA
With no load, worst code (0xF1C) on
the input.
-
-
480
µA



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