OPERATIONAL DESCRIPTION 1.1 Block diagram TheST17H26isdesignedtoofferultralowcost,lowpowerBluetoothSmart applicationcapabilities,whichintegratespowerful32bitMCU,advancedBLE,16KB onchipOTP,6KBonchipSRAM,a10bitADC,aquadraturedecoder
(QDEC),uptofourchannelPWM,flexibleI/Ointerfaces,andnearlyallofthe peripheralblocksneededforBluetoothLowEnergyapplicationsdevelopment. 1.2 Key features 1.2.1 General features Generalfeaturesareasfollows:
1)Embed32bithighperformanceMCUwithclockupto48MHz. 2)Programmemory:16KBonchipOTP. 3)Datamemory:6KBonchipSRAM. 4)16/12MHzCrystaland32KHz/32MHzembeddedRCoscillator. 5)Upto38/14/9/3GPIOsdependingonpackageoption,withconfigurableinternal pulluporpulldownresistors. 6)Debuginterface:SWS(SingleWireSlave). 7)SupportsMSPI(onlyforST17H38ET48&ST17H30ET24)andI2CSlave(except ST17H28EP8)interface. 8)EmbedsaSARADC:Upto10bitresolutionand4inputchannels. 9)Embedsonequadraturedecoder(QDEC). 10)SupportsuptofourchannelPWMoutput. 11)Embedsthreegeneral32bittimersTimer0~Timer2. Timer0~Timer2areavailableinactivemode Timer0~Timer1supportsfourmodes GenerallyTimer2isprogrammableaswatchdog 12)Alowfrequency32KtimerLTIMERavailableinsuspendmodeordeepsleep 13)Operatingtemperature:40~+85 industrialtemperaturerange. mode. 1.2.2 RF Features RFfeaturesinclude:
1)BLERFtransceiverembedded,workinginworldwideISM band. 2)Adaptivefrequencyhopping. 3)Bluetooth4.0Compliant,1Mbpsdataratemode. 4)RxSensitivity:94dBmat1Mbpsmode. Datasheet for Lenze ST17H26/28/29/30/38 DS-ST17HXX-E11 11 Ver2.0.0 5)Autoacknowledgementandretry. 6)Singlepinantennainterface. 7)RSSImonitoring. 1.2.3 Features of power management module Featuresofpowermanagementmoduleinclude:
1)Powersupplyof1.9V~3.6V. 2)EmbeddedLDO. 3)Batterymonitor:Embeddedlowbatterydetection. 4)Multiplestagepowermanagementtominimizepowerconsumption. 5)Lowpowerconsumption:
Transmittermodecurrent:15mA@0dBmpower,22mA@maxpower Receivermodecurrent:12mA Suspendmodecurrent:10uA Deepsleepmodecurrent:0.7uA set by the user. Frequency Range: 2402~2480MHz When the external crystal oscillator and power supply conditions are satisfied, Bluetooth data transmission and control can be carried out according to the program