STM32L412R8U6PXXX datasheet(160/192 Pages) STMICROELECTRONICS

部件名	STM32L412R8U6PXXX

功能描述	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS

PDF	192 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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160 / 192 page

Electrical characteristics

STM32L412xx

160/192

DS12469 Rev 8

Figure 33. 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 90. 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

STM32L412R8U6PXXX 数据表(PDF) 160 Page - STMicroelectronics

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