STM32U375CE datasheet(162/222 Pages) STMICROELECTRONICS

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Table 107. ADF characteristics

Evaluated by characterization and not tested in production.

Symbol

Parameter

Conditions

Min

Typ Max Unit

fCCKI

Input clock frequency via

ADF_CCK[1:0] pin, in SLAVE SPI mode

1.71 ≤ VDD ≤ 3.6 V

MHz

fCCKO

Output clock frequency in MASTER SPI

mode

fCCKOLF

Output clock frequency in LF_MASTER

SPI mode

fSYMB

Input symbol rate in Manchester mode

tHCCKI tLCCKI

ADF_CCK[1:0] input clock high and low

time

In SLAVE SPI mode

2 × Tadf_proc_ck(1)

tHCCKO tLCCKO

ADF_CCK[1:0] output clock high and

low time

In MASTER SPI mode

2 × Tadf_proc_ck

tHCCKOLF

tLCCKOLF

ADF_CCK[1:0] output clock high and

low time

In LF_MASTER SPI mode

Tadf_proc_ck

tSUCCKI

Data setup time with respect to

ADF_CCK[1:0] input

In SLAVE SPI mode: ADF_CCK[1:0]

configured in input, measured on rising

and falling edge

4.5

tHDCCKI

Data hold time with respect to

ADF_CCK[1:0] input

1.0

tSUCCKO

Data setup time with respect to

ADF_CCK[1:0] output

In MASTER SPI mode: ADF_CCK[1:0]

configured in output, measured on rising

and falling edge

4.5

tHDCCKO

Data hold time with respect to

ADF_CCK[1:0] output

0.5

tSUCCKOLF

Data setup time with respect to

ADF_CCK[1:0] output

In LF_MASTER SPI mode: ADF_CCK[1:0]

configured in output, measured on rising

and falling edge

tHDCCKOLF

Data hold time with respect to

ADF_CCK[1:0] output

1. Tadf_proc_ck is the period of the ADF processing clock.

Figure 48. ADF timing diagram

ADF_SDIx (I)

ADF_CCK (I/O)

tSUCCKI

tSUCCKO

tSUCCKOLF

fCCKI, fCCKO, fCCKOLF

tLCCKI, tLCCKO,

tLCCKOLF

tHDCCKI

tHDCCKO

tHDCCKOLF

tHCCKI, tHCCKO,

tHCCKOLF

tSUCCKI

tSUCCKO

tSUCCKOLF

tHDCCKI

tHDCCKO

tHDCCKOLF

5.3.27

Timer characteristics

The parameters given in Table 108, Table 109, and Table 110 are specified by design, not tested in production.

Refer to Table 86. I/O static characteristics for details on the input/output alternate function characteristics (output

compare, input capture, external clock, PWM output).

STM32U375xx

Electrical characteristics

DS14861 - Rev 2

page 162/222

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