Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VIHL

Low level Schmitt trigger threshold

Logic input falling

Full supply range

0.8

V

VILH

High level Schmitt trigger threshold

Logic input rising

Full supply range

2

V

VIHyst

Schmitt trigger input hysteresis

0.5

V

VOL

Low level output voltage

IOH = 4 mA

0.4

V

VOH

High level output voltage

IOL = 4 mA

VDDX –

0.3

V

ZO

Output impedance

-40%

50

+40%

Ω

fMAX

Maximum data rate

VIH = 3.3 V

100

Mbps

tr

Output rise time

CL = 15 pF

1.5

4

ns

tf

Output fall time

CL = 15 pF

1.5

4

ns

tDHL

Propagation delay H to L

See Figure 3

25

42

ns

tDLH

Propagation delay L to H

See Figure 3

25

42

ns

tPOWUP

Power-up time

30

µs

tREFRESH

Refresh time

1

2

µs

tWD

Watchdog timeout

2

6

µs

PWD

Pulse width distortion

|tDHL – tDLH|

Full temperature range (1)

3

ns

CMTI

Common mode transient immunity

(2)

50

65

kV/µs

1. Not tested in production. Limit is guaranteed by characterization on a limited number of samples representing the worst

case of production flow.

2. Not tested in production. Limit is guaranteed by characterization on a limited number of samples and simulations.

Note:

Testing conditions: Typical values are defined at Tamb = 25°C and VDD1 = VDD2 = 3 V, minimum and

maximum limits applies to the full temperature range (Tested in production at Tamb = 25°C and the

limits in the full temperature range are guaranteed by characterization on a limited quantity of samples),

unless otherwise specified.

STISO621

Electrical caracteristic

DS13394 - Rev 4

page 5/21