CYRF89235

Document Number: 001-77748 Rev. *F

Page 21 of 45

DC GPIO Specifications

The following tables list guaranteed maximum and minimum specifications for the voltage and temperature ranges: 2.4 V to 3.0 V and

0 °C

guidance only.

Table 13. 2.4 V to 3.0 V DC GPIO Specifications

Symbol

Description

Conditions

Min

Typ

Max

Units

Pull-up resistor

–

4

5.60

8

k



High output voltage Port 2 or 3 or

4 pins

source current in all I/Os

VIN – 0.20

–

–

V

High output voltage Port 2 or 3 or

4 pins

source current in all I/Os

VIN – 0.40

–

–

V

High output voltage Port 0 or 1

pins with LDO regulator Disabled

for port 1

source current in all I/Os

VIN – 0.20

–

–

V

High output voltage Port 0 or 1

pins with LDO regulator Disabled

for Port 1

source current in all I/Os

VIN – 0.50

–

–

V

High output voltage Port 1 pins

with LDO enabled for 1.8 V out

maximum of 20 mA source current

in all I/Os

1.50

1.80

2.10

V

High output voltage Port 1 pins

with LDO enabled for 1.8 V out

of 20 mA source current in all I/Os

1.20

–

–

V

Low output voltage

IOL = 10 mA, maximum of 30 mA

sink current on even port pins (for

example, P0[2] and P1[4]) and 30

mA sink current on odd port pins

(for example, P0[3] and P1[5])

–

–

0.75

V

Input low voltage

–

–

–

0.72

V

Input high voltage

–

1.40

–

V

Input hysteresis voltage

–

–

80

–

mV

Input leakage (absolute value)

–

–

1

1000

nA

Capacitive load on pins

Package and

pin dependent Temp = 25

C

0.50

1.70

7

pF

Input Low Voltage with low

threshold enable set, Enable for

Port1

Bit3 of IO_CFG1 set to enable low

threshold voltage of Port1 input

0.7

V

–

Input High Voltage with low

threshold enable set, Enable for

Port1

Bit3 of IO_CFG1 set to enable low

threshold voltage of Port1 input

1.2

–

V