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Digital port characteristics – Rainbow Electronics ATA5746 User Manual

Page 39

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39

4596A–RKE–05/06

ATA5745/ATA5746 [Preliminary]

17. Digital Port Characteristics

All parameters refer to GND and are valid for T

amb

= –40°C to +105°C, V

VS3V_AVCC

= V

VS5V

= 2.7V to 3.3V, and V

VS5V

= 4.5V to 5.5V.

Typical values are given at V

VS3V_AVCC

= V

VS5V

= 3V, T

amb

= 25°C, and f

RF

= 433.92 MHz unless otherwise specified. Details about current

consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”

No.

Parameters

Test Conditions

Pin

Symbol

Min.

Typ.

Max.

Unit

Type*

11

Digital Ports

11.1

ENABLE input

- Low level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

6

V

Il

0.2

× V

S

0.12

×

V

S

V

A

- High level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

= 4.5V to

5.5V

6

V

Ih

0.8

× V

S

V

A

11.2

RX input

- Low level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

19

V

Il

0.2

× V

S

0.12

×

V

S

V

A

- High level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

19

V

Ih

0.8

× V

S

V

A

11.3

BR0 input

- Low level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

20

V

Il

0.2

× V

S

0.12

×

V

S

V

A

- High level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

20

V

Ih

0.8

× V

S

V

A

11.4

BR1 input

- Low level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

21

V

Il

0.2

× V

S

0.12

×

V

S

V

A

- High level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

21

V

Ih

0.8

× V

S

V

A

11.5

ASK_NFSK input

- Low level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

22

V

Il

0.2

× V

S

0.12

×

V

S

V

A

- High level input

voltage

V

S

= V

VS3V_AVCC

=

V

VS5V

= 2.7V to 3.3V

V

S

= V

VS5V

=

4.5V to 5.5V

22

V

Ih

0.8

× V

S

V

A

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter