SI4455-B1A-FM Datasheet, PDF(9/40 Page) Silicon Laboratories – EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER

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SI4455-B1A-FM Datasheet, PDF (9/40 Pages) Silicon Laboratories – EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER

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Si4455

Table 7. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ)1

Parameter

Symbol

Test Condition

Min

Typ Max

Rise Time

Fall Time

Input Capacitance

Logic High Level Input Voltage

Logic Low Level Input Voltage

Input Current

Input Current if Pullup is Activated

Drive Strength for Output Low

Level2

Drive Strength for Output High

Level (GPIO1, GPIO2, GPIO3)2

Drive Strength for Output High

Level (GPIO0)2

Logic High Level Output Voltage

Logic Low Level Output Voltage

TRISE

TFALL

CIN

VIH

VIL

IIN

IINP

IOmaxLL

IOmaxLH

IOmaxHL

IOmaxHH

IOmaxLL

IOmaxLH

IOmaxHL

IOmaxHH

IOmaxLL

IOmaxLH

IOmaxHL

IOmaxHH

VOH

VOL

0.1 x VDD to 0.9 x VDD,

CL= 10 pF, DRV<1:0> = LL

VDD = 3.3 V

0.9 x VDD to 0.1 x VDD,

CL= 10 pF, DRV<1:0> = LL

VDD = 3.3 V

0 < VIN < VDD

VIL = 0 V

DRV[1:0] = LL

DRV[1:0] = LH

DRV[1:0] = HL

DRV[1:0] = HH

DRV[1:0] = LL

DRV[1:0] = LH

DRV[1:0] = HL

DRV[1:0] = HH

DRV[1:0] = LL

DRV[1:0] = LH

DRV[1:0] = HL

DRV[1:0] = HH

DRV[1:0] = HL

VDD x 0.7

â10

VDD x 0.8

2.3

6.66

5.03

3.16

1.13

5.75

4.37

2.73

0.96

2.53

2.21

1.7

0.80

VDD x 0.3

VDD x 0.2

Notes:

1. All specifications guaranteed by qualification. Qualification test conditions are listed under âQualification Test

Conditionsâ in "1.1. Definition of Test Conditions" on page 11.

2. GPIO output current measured at 3.3 VDC VDD with VOH = 2.64 VDC and VOL = 0.66 VDC.

Unit

ÂµA

Rev 1.1

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