STM32L082KB datasheet(103/132 Pages) STMICROELECTRONICS

部件名	STM32L082KB

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

PDF	132 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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103 / 132 page

DS10688 Rev 7

103/132

STM32L082xx

Electrical characteristics

109

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 71. SPI characteristics in voltage Range 1 (1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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