L99DZ120 datasheet(52/162 Pages) STMICROELECTRONICS

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Electrical specifications

L99DZ120

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DocID029145 Rev 4

Note:

See Figure 19: SPI output timing.

Note:

See Figure 20: SPI CSN - output timing.

3.4.22

Input LIN_FLASH for Flash mode

The voltages are referred to ground and currents are assumed positive, when the current

flows into the pin. 6V ≤ VSREG ≤ 18; V1 = 5 V; Tj = -40 °C to 150 °C.

Table 34. DO timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

tr DO

DO rise time

CL = 50 pF; ILOAD = -1 mA

tf DO

DO fall time

CL = 50 pF; ILOAD = -1 mA

ten DO tri L

DO enable time from

3-state to low level

CL = 50 pF; ILOAD = -1 mA;

pull-up load to V1

100

tdis DO L tri

DO disable time from

low level to 3-state

CL = 50 pF; ILOAD = -1 mA;

pull-up load to V1

100

ten DO tri H

DO enable time from

3-state to high level

CL = 50 pF; ILOAD = -1 mA;

pull-down load to GND

100

tdis DO H tri

DO disable time from

high level to 3-state

CL = 50 pF; ILOAD = -1 mA;

pull-down load to GND

100

td DO

DO delay time

VDO < 0.3 V1;

VDO > 0.7 V1; CL = 50 pF

Table 35. CSN timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

tCSN_HI,min

Minimum CSN

high time, active

mode

Transfer of SPI-command to

Input Register

μs

tCSNfail

CSN low timeout

Table 36. Inputs LIN_FLASH for Flash mode

Symbol

Parameter

Test condition

Min.

Typ.

Max. Unit

VflashL

Input low level (VLIN_FLASH

for exit from Flash mode)

6.1

7.25

8.4

VflashH

Input high level (VLIN_FLASH

for transition into Flash

mode)

7.4

8.4

9.4

VflashHYS

Input voltage hysteresis

0.6

0.8

1.0

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