Data Sheet

FSC‐BT630Datasheet
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RecommendedTWIMpullupvaluevs.linecapacitance
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•TheI2Cspecificationallowsalinecapacitanceof400pFatmost.
•FSC‐BT630internalpulluphasafixedvalueoftyp.13kOhm,seeRPUintheGPIOchapter.
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5.6.2I2Cslaveinterfaceelectricalspecifications
Table15:I2Cinterfaceelectricalspecifications(Slave)
Parameter Min Typ Max Unit
f
I2C
‐  BitratesforI2C
a
 100‐400 Kbps
I
I2C,100kbps
‐  RuncurrentforI2C,100kbps ‐ 45 ‐ μA
I
I2C,400kbps
‐  RuncurrentforI2C,400kbps‐45‐μA
I
I2C,IDLE
‐IdlecurrentforI2C ‐ 1 ‐ uA
t
I2C,START,LP
‐  TimefromPREPARERX/PREPARETXtasktotransmission
started,Lowpowermode‐
T
I2C,START,CL
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+
t
START_HFINT
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‐ μS
t
I2C,START,CL
‐  TimefromPREPARERX/PREPARETXtasktotransmission
started,Constantlatencymode
‐ 1.5 ‐ μS
 
a:Higherbitratesorstrongerpull‐upsmayrequireGPIOstobesetasHighDrive,seeGPIOchapterformoredetails.
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Table16:TwoWireInterface(I2C)timingspecifications(Master)
Parameter Min Typ Max Unit
f
I2C,SCL,400kbps
‐  SCLclockfrequency,400kbps‐400‐KHz
t
I2C,SU_DAT
‐  DatasetuptimebeforepositiveedgeonSCL–allmodes 300 ‐ ‐ nS
t
I2C,HD_DAT
‐  DataholdtimeafternegativeedgeonSCL–allmodes 500‐ ‐nS
t
I2C,HD_STA,100kbps
‐  I2CslaveholdtimefromforSTARTcondition(SDAlowto
SCL
5200
‐ ‐ nS