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STM32F217VG датащи(PDF) 148 Page - STMicroelectronics

номер детали STM32F217VG
подробное описание детали  ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM
PDF  175 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
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STM32F217VG датащи(HTML) 148 Page - STMicroelectronics

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Electrical characteristics
STM32F21xxx
148/175
DocID17050 Rev 9
Figure 73. SD default mode
6.3.28
RTC characteristics
Table 84. SD / MMC characteristics
Symbol
Parameter
Conditions
Min
Max
Unit
fPP
Clock frequency in data transfer
mode
CL ≤ 30 pF
0
48
MHz
-
SDIO_CK/fPCLK2 frequency ratio
-
-
8/3
-
tW(CKL)
Clock low time, fPP = 16 MHz
CL ≤ 30 pF
32
ns
tW(CKH)
Clock high time, fPP = 16 MHz
CL ≤ 30 pF
31
tr
Clock rise time
CL ≤ 30 pF
3.5
tf
Clock fall time
CL ≤ 30 pF
5
CMD, D inputs (referenced to CK)
tISU
Input setup time
CL ≤ 30 pF
2
ns
tIH
Input hold time
CL ≤ 30 pF
0
CMD, D outputs (referenced to CK) in MMC and SD HS mode
tOV
Output valid time
CL ≤ 30 pF
6
ns
tOH
Output hold time
CL ≤ 30 pF
0.3
CMD, D outputs (referenced to CK) in SD default mode(1)
1. Refer to SDIO_CLKCR, the SDI clock control register to control the CK output.
tOVD
Output valid default time
CL ≤ 30 pF
7
ns
tOHD
Output hold default time
CL ≤ 30 pF
0.5
ai14888
CK
D, CMD
(output)
tOVD
tOHD
Table 85. RTC characteristics
Symbol
Parameter
Conditions
Min
Max
-fPCLK1/RTCCLK frequency ratio
Any read/write operation
from/to an RTC register
4-



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