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STM32F334X4 bảng dữ liệu(PDF) 96 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]
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STM32F334X4 bảng dữ liệu(HTML) 96 Page - STMicroelectronics

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Electrical characteristics
STM32F334x4 STM32F334x6 STM32F334x8
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DocID025409 Rev 5
Figure 30. 12-bit buffered /non-buffered DAC
1. The DAC integrates an output buffer that can be used to reduce the output impedance and to drive external
loads directly without the use of an external operational amplifier. The buffer can be bypassed by
configuring the BOFFx bit in the DAC_CR register.
6.3.21
Comparator characteristics
Table 70. Comparator characteristics(1)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VDDA
Analog supply voltage
-
2
-
3.6
V
VIN
Comparator input voltage
range
-0
-
VDDA
-
VBG
Scaler input voltage
-
-
VREFINIT
--
VSC
Scaler offset voltage
-
-
±5
±10
mV
tS_SC
VREFINT scaler startup time
from power down
First VREFINT scaler activation
after device power on
--
1(2)
s
Next activations
-
-
0.2
ms
tSTART
Comparator startup time
VDDA ≥ 2.7 V
-
-
4
µs
VDDA < 2.7 V
-
-
10
tD
Propagation delay for
200 mV step with 100 mV
overdrive
VDDA ≥ 2.7 V
-
25
28
ns
VDDA < 2.7 V
-
28
30
Propagation delay for full
range step with 100 mV
overdrive
VDDA ≥ 2.7 V
-
32
35
VDDA < 2.7 V
-
35
40
VOFFSET
Comparator offset error
VDDA ≥ 2.7 V
-
±5
±10
mV
VDDA < 2.7 V
-
-
±25
TVOFFSET Total offset variation
Full temperature range
-
-
3
mV
IDD(COMP)
COMP current
consumption
-
-
400
600
µA
1. Guaranteed by design, not tested in production.
2. For more details and conditions see Figure 31: Maximum VREFINT scaler startup time from power-down.



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