Automotive Contact Monitor

and Level Shifter

4

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TIMING CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

IN0 to DO0 Propagation Delay

22

35

IN1 to DO1 Propagation Delay

22

µs

CLK Frequency

Input rise/fall time < 2ns,

5

MHz

Falling Edge of

CS to Rising Edge

of CLK Required Setup Time

Input rise/fall time < 2ns,

110

ns

Falling Edge of CLK to Rising

Edge of

CS Required Setup Time

Input rise/fall time < 2ns,

50

ns

SDI Valid to Falling Edge of CLK

Required Setup Time

Input rise/fall time < 2ns,

30

ns

Falling Edge of CLK to SDI

Required Hold Time

Input rise/fall time < 2ns,

20

ns

Time From Falling Edge of

CS to

SDO Low Impedance

Input rise/fall time < 2ns,

55

ns

Time From Rising Edge of

CS to

SDO High Impedance

55

ns

Time from Rising Edge of CLK to

SDO Data Valid

70

ns

3.18

5.9

9.42

Debounce time

63

120

188

ms

Scanning Time Pulse

130

250

400

µs

Scanning Time Period

SC2 = 0, SC1 = 1, SC0 = 1

4

8

14

ms

Wetting Time Pulse

WTOFF = 0

10

21

35

ms

Time from Shutdown To Normal

Operation

SD low-to-high transition to input

monitoring enabled

200

µs

correlation to the +125°C tests.

Note 5: Wetting current rise/fall time is measured as the time from 10% to 90% of the maximum wetting current.

Note 6: Guaranteed by design.