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STM32L433CB 데이터시트(PDF) 168 Page - STMicroelectronics

부품명 STM32L433CB
상세설명  Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, USB FS, LCD, ext. SMPS
PDF  225 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32L433CB 데이터시트(HTML) 168 Page - STMicroelectronics

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Electrical characteristics
STM32L433xx
168/225
DS11449 Rev 5
Figure 33. 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.
IDDV(DAC)
DAC consumption from
VREF+
DAC output
buffer ON
No load, middle
code (0x800)
-
185
240
µA
No load, worst code
(0xF1C)
-
340
400
DAC output
buffer OFF
No load, middle
code (0x800)
-
155
205
Sample and hold mode, buffer ON,
CSH = 100 nF, worst case
-
185 ₓ
Ton/(Ton
+Toff)
(4)
400 ₓ
Ton/(Ton
+Toff)
(4)
Sample and hold mode, buffer OFF,
CSH = 100 nF, worst case
-
155 ₓ
Ton/(Ton
+Toff)
(4)
205 ₓ
Ton/(Ton
+Toff)
(4)
1. Guaranteed by design.
2. In buffered mode, the output can overshoot above the final value for low input code (starting from min value).
3. Refer to Table 70: I/O static characteristics.
4. Ton is the Refresh phase duration. Toff is the Hold phase duration. Refer to RM0394 reference manual for more details.
Table 82. DAC characteristics(1) (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
(1)
Buffer
12-bit
digital to
analog
converter
Buffered/non-buffered DAC
DACx_OUT
RLOAD
CLOAD
ai17157d



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