STM32L4P5CE datasheet(241/311 Pages) STMICROELECTRONICS

241 / 311 page

DS12903 Rev 2

241/311

STM32L4P5xx

Electrical characteristics

277

Figure 42. SPI timing diagram - slave mode and CPHA = 0

tdis(SO) Data output disable time Slave mode

tv(SO)

Data output valid time

Slave mode 2.7 V < VDD < 3.6 V

Voltage Range V1

15.5

Slave mode 1.71 V < VDD < 3.6 V

Voltage Range V1

-11

Slave mode 1.71 V < VDD < 3.6 V

Voltage Range V2

-13

Slave mode(3)

1.08 V < VDD < 1.32 V

-27

tv(MO)

Master mode

th(SO)

Data output hold time

Slave mode 1.71 V < VDD < 3.6 V

Slave mode(3)

1.08 < VDD < 1.32 V

th(MO)

Master mode

1. Guaranteed by characterization results.

2. The maximum frequency in Slave transmitter mode is determined by the sum of tv(SO) and tsu(MI) which has to fit into

SCK low or high-phase preceding the SCK sampling edge. This value can be achieved when the SPI communicates with a

master having tsu(MI) = 0 while Duty(SCK) = 50%.

3. SPI mapped on GPIOG port which is supplied by VDDIO2 specified down to 1.08V. SPI is tested in this voltage.

Table 96. SPI characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max(2)

Unit

MSv41658V1

NSS input

CPHA=0

CPOL=0

CPHA=0

CPOL=1

MISO output

MOSI input

tsu(SI)

th(SI)

tw(SCKL)

tw(SCKH)

tc(SCK)

tr(SCK)

th(NSS)

tdis(SO)

tsu(NSS)

ta(SO)

tv(SO)

Next bits IN

Last bit OUT

First bit IN

First bit OUT

Next bits OUT

th(SO)

tf(SCK)

Last bit IN

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