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STM32L552VCU6QXXX bảng dữ liệu(PDF) 279 Page - STMicroelectronics

tên linh kiện STM32L552VCU6QXXX
Giải thích chi tiết về linh kiện  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32L552VCU6QXXX bảng dữ liệu(HTML) 279 Page - STMicroelectronics

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STM32L552xx
Electrical characteristics
307
Figure 54. USART slave mode timing diagram
5.3.30
FSMC characteristics
Unless otherwise specified, the parameters given in Table 132 to Table 145 for the FMC
interface are derived from tests performed under the ambient temperature, fHCLK frequency
and VDD supply voltage conditions summarized in Table 27: General operating conditions,
with the following configuration:
•
Output speed is set to OSPEEDRy[1:0] = 11
•
Capacitive load C = 30 pF
•
Measurement points are done at CMOS levels: 0.5 x VDD
Refer to Section 5.3.15: 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 132 through
Table 139 provide the corresponding timings. The results shown in these tables are
obtained with the following FMC configuration:
•
AddressSetupTime (ADDSET) = 0x1
•
AddressHoldTime (ADDHLD) = 0x1
•
DataHoldTime = 0x1
•
ByteLaneSetup (NBLSET) = 0x1
•
DataSetupTime (DATAST) = 0x1 (except for asynchronous NWAIT mode,
DataSetupTime = 0x5)
•
DataHoldTime (DATAHLD) = 0x1 (1THCLK for read operations and 2THCLK for write
operations)
•
BusTurnAroundDuration = 0x0
•
Capacitive load CL = 30 pF
In all timing tables, the THCLK is the HCLK clock period.
(SI)
MSB IN
BIT1 IN
LSB IN
BIT6 OUT
MSB OUT
LSB OUT
NSS input
MOSI
INPUT
MISO
OUTPUT
(SI)



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