STM32L433CB datasheet(184/227 Pages) STMICROELECTRONICS

Part #	STM32L433CB

Description	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 256KB flash, 64KB SRAM, USB FS, LCD, ext. SMPS

PDF	227 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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184 / 227 page

Electrical characteristics

STM32L433xx

184/19

DS11449 Rev 7

Figure 34. SPI timing diagram - slave mode and CPHA = 0

tv(SO)

Data output valid time

Slave mode 2.7 < VDD < 3.6 V

Voltage Range 1

12.5

13.5

Slave mode 1.71 < VDD < 3.6 V

Voltage Range 1

-12.5

Slave mode 1.71 < VDD < 3.6 V

Voltage Range 2

-12.5

tv(MO)

Master mode

4.5

th(SO)

Data output hold time

Slave mode

th(MO)

Master mode

1. Guaranteed by characterization results.

2. 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 %.

Table 95. SPI characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

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

STM32L433CB Datasheet(PDF) 184 Page - STMicroelectronics

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