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STM32U385CG Datasheet(PDF) 175 Page - STMicroelectronics

Part # STM32U385CG
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 144 DMIPS, 1 MB flash memory, 256 KB SRAM, SMPS, crypto
PDF  224 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U385CG Datasheet(HTML) 175 Page - STMicroelectronics

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Figure 58. USART timing diagram in SPI master mode
1/fCK
tw(CKH)
tw(CKL)
CPHA=0
CPOL=0
CPHA=0
CPOL=1
TX output
RX input
MSB OUT
LSB OUT
BIT1 OUT
MSB IN
LSB IN
BIT6 IN
CPHA=1
CPOL=0
CPHA=1
CPOL=1
tsu(RX)
tv(TX)
th(TX)
th(RX)
Figure 59. USART timing diagram in SPI slave mode
NSS input
CPHA=0
CPOL=0
CPHA=0
CPOL=1
TX output
RX input
th(RX)
tw(CKL)
tw(CKH)
1/fCK
th(NSS)
tsu(NSS)
tv(TX)
Next bits IN
Last bit OUT
First bit IN
First bit OUT
Next bits OUT
th(TX)
Last bit IN
tsu(RX)
5.3.34
SPI characteristics
Unless otherwise specified, the parameters given in Table 121 are derived from tests performed under the
ambient temperature, fPCLKx frequency and supply voltage conditions summarized in Table 27.
•
Output speed set to OSPEEDRy[1:0] = 10
•
Capacitive load CL = 30 pF
•
Measurement points done at 0.5 × VDD level
•
I/O compensation cell activated
•
HSLV activated when VDD ≤ 2.7 V
Refer to Table 86. I/O static characteristics for more details on the input/output alternate function characteristics
(NSS, SCK, MOSI, MISO for SPI).
STM32U385xx
Electrical characteristics
DS14830 - Rev 2
page 175/224



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