STM32L072KB datasheet(114/160 Pages) STMICROELECTRONICS

Part #	STM32L072KB

Description	Ultra-low-power 32-bit MCU Arm®-based Cortex®-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, USB, ADC, DACs

PDF	160 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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114 / 160 page

Electrical characteristics

STM32L072xx

114/160

DS10689 Rev 5

tsu(NSS)

NSS setup time

Slave mode, SPI

presc = 2

4*Tpclk

th(NSS)

NSS hold time

Slave mode, SPI

presc = 2

2*Tpclk

tw(SCKH)

tw(SCKL)

SCK high and low time

Master mode

Tpclk-2

Tpclk

Tpclk+

tsu(MI)

Data input setup time

Master mode

tsu(SI)

Slave mode

th(MI)

Data input hold time

Master mode

th(SI)

Slave mode

3.5

ta(SO

Data output access time

Slave mode

tdis(SO)

Data output disable time

Slave mode

tv(SO)

Data output valid time

Slave mode

1.65 V<VDD<3.6 V

-18

Slave mode

2.7 V<VDD<3.6 V

-18

tv(MO)

Master mode

th(SO)

Data output hold time

Slave mode

th(MO)

Master mode

1. Guaranteed by characterization results.

2. The maximum SPI clock 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 74. SPI characteristics in voltage Range 1 (1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

STM32L072KB Datasheet(PDF) 114 Page - STMicroelectronics

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