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STM32G081EB Scheda tecnica(PDF) 107 Page - STMicroelectronics

Il numero della parte STM32G081EB
Spiegazioni elettronici  Arm® Cortex®-M0 32-bit MCU, 128 KB Flash, 36 KB RAM,4x USART, timers, ADC, DAC, comm. I/Fs, AES, RNG, 1.7-3.6V
PDF  136 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32G081EB Scheda tecnica(HTML) 107 Page - STMicroelectronics

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DS12231 Rev 4
107/136
STM32G081xB
Electrical characteristics
108
Figure 31. I2S master timing diagram (Philips protocol)
1. Based on characterization results, not tested in production.
2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
USART characteristics
Unless otherwise specified, the parameters given in Table 72 for USART are derived from
tests performed under the ambient temperature, fPCLKx frequency and supply voltage
conditions summarized in Table 21: General operating conditions. The additional general
conditions are:
•
OSPEEDRy[1:0] set to 10 (output speed)
•
capacitive load C = 30 pF
•
measurement points at CMOS levels: 0.5 x VDD
Refer to Section 5.3.14: I/O port characteristics for more details on the input/output alternate
function characteristics (NSS, CK, TX, and RX for USART).
MSv39720V1
CPOL = 0
CPOL = 1
tc(CK)
WS output
SDreceive
SDtransmit
tw(CKH)
tw(CKL)
tsu(SD_MR)
tv(SD_MT)
th(SD_MT)
th(WS)
th(SD_MR)
MSB receive
Bitn receive
LSB receive
MSB transmit
Bitn transmit
LSB transmit
tf(CK)
tr(CK)
tv(WS)
LSB receive(2)
LSB transmit(2)
10%
90%
Table 72. USART characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fCK
USART clock frequency
Master mode
-
-
8
MHz
Slave mode
-
-
21



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