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STM32U073RCT6 Datasheet(PDF) 106 Page - STMicroelectronics

Part # STM32U073RCT6
Description  Ultra-low-power Arm® Cortex®-M0 32-bit MCU, up to 256-Kbyte flash memory, 40-Kbyte SRAM, USB, LCD
PDF  146 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U073RCT6 Datasheet(HTML) 106 Page - STMicroelectronics

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Figure 30. 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)
6.3.29
SPI characteristics
Unless otherwise specified, the parameters given in Table 87 for SPI are derived from tests performed under the
ambient temperature, fPCLKx frequency and supply voltage conditions summarized in Section 6.3.1: General
operating conditions.
•
Output speed is set to OSPEEDRy[1:0] = 11
•
Capacitive load C = 30 pF
•
Measurement points are done at CMOS levels: 0.5 × VDD
Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate function
characteristics (NSS, SCK, MOSI, MISO for SPI).
STM32U073x8/B/C
Electrical characteristics
DS14548 - Rev 2
page 106/146



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