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HT37B90 Scheda tecnica(PDF) 3 Page - Holtek Semiconductor Inc |
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HT37B90 Scheda tecnica(HTML) 3 Page - Holtek Semiconductor Inc |
3 / 80 page PadDescription HT37B90,HT37B70 PadName I/O Configuration Option Function VDD ¾ ¾ Positivedigitalpowersupply VDD_DAC ¾ ¾ Positive DAC circuitpowersupply VDD_AMP ¾ ¾ PositivepowerAmp.powersupply VDD_ADC ¾ ¾ PositiveADCcircuitpowersupply VSS ¾ ¾ Negativedigitalpowersupply,ground VSS_DAC ¾ ¾ Negative DAC powersupply,ground VSS_AMP ¾ ¾ NegativeAMPpowersupply,ground VSS_ADC ¾ ¾ NegativeADCpowersupply,ground PA0~PA4 PA5/INT PA6/TMR0 PA7/TMR1 I/O Wake-up, Pull-high orNone Bidirectional 8-bit input/output port. Each pin can be configured as a wake-up input by configuration option. Software instructions determine if the pin is a CMOS output or Schmitt Trigger input. Configuration options determine if all pins on this port have pull-high resistors. Pins PA5, PA6 and PA7 are pin-sharedwith INT,TMR0andTMR1,respectively. PB0/AD0~ PB7/AD7 I/O Pull-high orNone Bidirectional 8-bit input/output port. Software instructions determine if the pin is a CMOS output or Schmitt Trigger input. A configuration option determines if all pins on this port have pull-high resistors. Pins PB0 ~ PB7 are pin-shared withAD0andAD7,respectively. PC0/K0~ PC7/K7 I/O Pull-high orNone Bidirectional 8-bit input/output port. Software instructions determine if the pin is a CMOS output or Schmitt Trigger input. A configuration option determines if all pins on this port have pull-high resistors. Pins PC0 ~ PC7 are pin-shared withK0andK7,respectively(K0~K7areCR/Ffunction). PD0/RCOUT PD1/RR PD2/RC PD3/CC PD4/WAS PD5/DT PD6/CK PD7 I/O Pull-high orNone Bidirectional 8-bit input/output port. Software instructions determine if the pin is a CMOS output or Schmitt Trigger input. A configuration option determines if all pins on this port have pull-high resistors. Pins PD0~PD3 are pin-shared with R/F OSC input pins RCOUT, RR, RC and CC. PD4~PD6 are pin-shared with IIS interfacepinsWAS,DTand CK.PD7isnormalI/Oport. RCOUT:CapacitororresistorconnectionpintoRC OSC RR:Oscillationinputpin RC:Referenceresistorconnectionpin CC:Referencecapacitorconnectionpin WAS,DTand CK controlpinfor IIS function WAS: IIS wordselectoutput DT: IIS datatransmitoutput CK: IIS serialclockoutput PE0/Min PE1/Mout PE2/Mth PE3/SDO PE4/SDI PE5/SCS PE6/SCK PE7 I/O Pull-high orNone Bidirectional 8-bit input/output port. Software instructions determine if the pin is a CMOS output or Schmitt Trigger input. A configuration option determines if all pins on this port have pull-high resistors. Pins PE0~PE2 are pin-shared with UART interface pins Min, Mout and Mth. Pins PE3~PE6 are pin-shared with SPI interfacepins SDO, SDI, SCS and SCK.PE7isnormalI/Oport. Min, Mout and Mth controlpinfor UART Function Min:MIDIinput Mout:MIDIoutput Mth:MIDIthrough SDO, SDI, SCS and SCK controlpinfor SPI Function SDO: SPI dataoutputpin SDI: SPI datainputpin SCS: SPI slaveselectsignal. SCK: SPI clock RCH O ¾ Audiorightchanneloutput HT37B90/HT37B70/HT37B50/HT37B30 Rev.1.00 3 June22,2017 |
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