4.5

I/O operating characteristics

Symbol

Parameter

Min.

Max.

Unit

Conditions

Low-level input voltage

-

0.5

V

High-level input voltage

1.3

-

V

Low-level output voltage

-

0.5

V

High-level output voltage

1.4

-

V

Low-level output current

-

4 (1)

mA

High-level output current

-

4 (1)

mA

Pull-up resistor

30

50

kΩ

Resistor turned on (2)

Pull-down resistor

30

50

kΩ

Resistor turned on (2)

1. GPIO14 max sunk or sourced current is limited to 3mA. The speed should not exceed 2 MHz with a maximum load of 30 pF.

This I/O must not be used as a current source (e.g. to drive an LED).

2. Normally not used. Firmware dependent.

4.6

Pin assignment

SPBT3.0DP2

I/O operating characteristics

DS11599 - Rev 7

page 9/31