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STM32F334X4 bảng dữ liệu(PDF) 50 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) 50 Page - STMicroelectronics

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Electrical characteristics
STM32F334x4 STM32F334x6 STM32F334x8
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DocID025409 Rev 5
6.3.2
Operating conditions at power-up / power-down
The parameters given in Table 20 are derived from tests performed under the ambient
temperature condition summarized in Table 19.
6.3.3
Characteristics of the embedded reset and power-control block
The parameters given in Table 21 are derived from tests performed under ambient
temperature and VDD supply voltage conditions summarized in Table 19.
Table 20. Operating conditions at power-up / power-down
Symbol
Parameter
Conditions
Min.
Max.
Unit
tVDD
VDD rise time rate
-
0
∞
µs/V
VDD fall time rate
20
∞
tVDDA
VDDA rise time rate
-
0
∞
VDDA fall time rate
20
∞
Table 21. Embedded reset and power control block characteristics
Symbol
Parameter
Conditions
Min.
Typ. Max. Unit
VPOR/PDR(1)
1. The PDR detector monitors VDD and also VDDA (if kept enabled in the option bytes). The POR detector
monitors only VDD.
Power on/power down
reset threshold
Falling edge
1.8(2)
2. The product behavior is guaranteed by design down to the minimum VPOR/PDR value.
1.88
1.96
V
Rising edge
1.84
1.92
2.0
V
VPDRhyst(1) PDR hysteresis
-
-
40
-
mV
tRSTTEMPO(3)
3. Guaranteed by design, not tested in production.
POR reset
temporization
-
1.5
2.5
4.5
ms



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