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STM32F427AI 데이터시트(PDF) 169 Page - STMicroelectronics

부품명 STM32F427AI
상세설명  32b Arm® Cortex®-M4 MCUFPU, 225DMIPS, up to 2MB Flash/2564KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 com. interfaces, camera & LCD-TFT
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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STM32F427AI 데이터시트(HTML) 169 Page - STMicroelectronics

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DS9405 Rev 12
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STM32F427xx STM32F429xx
Electrical characteristics
197
6.3.26
FMC characteristics
Unless otherwise specified, the parameters given in Table 87 to Table 102 for the FMC
interface are derived from tests performed under the ambient temperature, fHCLK frequency,
and VDD supply voltage conditions summarized in Table 17, with the following configuration:
•
Output speed is set to OSPEEDRy[1:0] = 10 except at VDD range 1.7 to 2.1 V where
OSPEEDRy[1:0] = 11
•
Measurement points are done at CMOS levels: 0.5VDD
Refer to Section 6.3.17: I/O port characteristics for more details on the input/output
characteristics.
Asynchronous waveforms and timings
Figure 55 through Figure 58 represent asynchronous waveforms and Table 87 through
Table 94 provide the corresponding timings. The results shown in these tables are obtained
with the following FMC configuration:
•
AddressSetupTime = 0x1
•
AddressHoldTime = 0x1
•
DataSetupTime = 0x1 (except for asynchronous NWAIT mode, DataSetupTime = 0x5)
•
BusTurnAroundDuration = 0x0
•
For SDRAM memories, VDD ranges from 2.7 to 3.6 V and maximum frequency
FMC_SDCLK = 90 MHz
•
For Mobile LPSDR SDRAM memories, VDD ranges from 1.7 to 1.95 V and maximum
frequency FMC_SDCLK = 84 MHz



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