L9954 datasheet(15/37 Pages) STMICROELECTRONICS

15 / 37 page

L9954 / L9954XP

Electrical specifications

Doc ID 14279 Rev 3

15/37

IDOLK

Tristate leakage current

VCSN = VCC,

0V < VDO < VCC

-10

µA

CDO

(1)

Tristate input

capacitance

VCSN = VCC,

0V < VCC < 5.3V

Value of input capacity is not measured in production test. Parameter guaranteed by design.

Table 16.

DO timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

tr DO

DO rise time

CL = 100 pF, Iload = -1mA

140

tf DO

DO fall time

CL = 100 pF, Iload = 1mA

100

ten DO tri L

DO enable time

from tristate to low level

CL = 100 pF, Iload = 1mA

pull-up load to VCC

100

250

tdis DO L tri

DO disable time

from low level to tristate

CL = 100 pF, Iload = 4 mA

pull-up load to VCC

380

450

ten DO tri H

DO enable time

from tristate to high level

CL =100 pF, Iload = -1mA

pull-down load to GND

100

250

tdis DO H tri

DO disable time

from high level to tristate

CL = 100 pF, Iload = -4mA

pull-down load to GND

380

450

td DO

DO delay time

VDO < 0.3 VCC, VDO > 0.7VCC,

CL = 100pF

250

Table 17.

CSN timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

tCSN_HI,stb

CSN HI time, switching from

standby mode

Transfer of SPI-command

to Input Register

µs

tCSN_HI,min CSN HI time, active mode

Transfer of SPI-command

to input register

4µs

Table 15.

DO (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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