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STM32U385CG Datasheet(PDF) 174 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) 174 Page - STMicroelectronics

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Table 120. USART (SPI mode) characteristics
Evaluated by characterization. Not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fCK
USART clock
frequency
SPI master mode 1.71 V ≤
VDDIOX ≤ 3.6 V
-
12
MHz
SPI slave mode 1.71 V ≤
VDDIOX ≤ 3.6 V
32
SPI master or slave mode
1.08 V ≤ VDDIO2 ≤ 1.32 V
15
tsu(NSS)
NSS setup
time
SPI Ssave mode
tker(1) + 3
-
-
ns
th(NSS)
NSS hold
time
SPI slave mode
2
-
-
tw(CKH)
CK high and
low time
SPI master mode
1/ fCK /2-1
1/ fCK /2
1/ fCK /2+1
tw(CKL)
tsu(RX)
Data input
setup time
SPI master mode
14/22(2)
-
-
tsu(RX)
SPI slave mode
2.5
-
-
th(RX)
Data input
hold time
SPI master mode
0.5
-
-
th(RX)
SPI slave mode
1
-
-
tv(TX)
Data output
valid time
SPI Slave
mode
2.7 V ≤
VDDIOX ≤ 3.6
V
-
11.5
15.5
1.71 V ≤
VDDIOX ≤ 3.6
V
-
1.08 V ≤
VDDO2 ≤ 1.32
V
15.5
23.5
tv(TX)
SPI Master
mode
2.7 V ≤
VDDIOX ≤ 3.6
V
-
0.5
2
1.71 V ≤
VDDIOX ≤ 3.6
V
2.5
th(TX)
Data output
hold time
SPI slave mode
8
-
-
th(TX)
Data output
hold time
SPI master mode
0
-
-
1. Tker is the usart_ker_ck_pres clock period.
2. When using SPI on port G.
STM32U385xx
Electrical characteristics
DS14830 - Rev 2
page 174/224



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