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HT66FB540 Datasheet(PDF) 8 Page - Holtek Semiconductor Inc |
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HT66FB540 Datasheet(HTML) 8 Page - Holtek Semiconductor Inc |
8 / 245 page Rev. 1.00 8 ���i� 0�� �01� Rev. 1.00 9 ���i� 0�� �01� HT66FB540/HT66FB550/HT66FB560 A/D Flash USB 8-Bit MCU with SPI HT66FB540/HT66FB550/HT66FB560 A/D Flash USB 8-Bit MCU with SPI Features CPU Features • Operatingvoltage ♦ VDD(MCU): fSYS=4MHz/6MHz:2.2V~5.5V fSYS=12MHz:2.7V~5.5V ♦ VDD(USBmode): fSYS=6MHz/12MHz:3.3V~5.5V fSYS=16MHz:4.5V~5.5V • Upto0.25μsinstructioncyclewith16MHzsystemclockatVDD=5V • Powerdownandwake-upfunctionstoreducepowerconsumption • Fouroscillators ♦ ExternalCrystal–HXT ♦ External32.768kHzCrystal–LXT ♦ InternalRC–HIRC ♦ Internal32kHzRC–LIRC • Multi-modeoperation:NORMAL,SLOW,IDLEandSLEEP • Allinstructionsexecutedinoneortwoinstructioncycles • Tablereadinstructions • 63powerfulinstructions • Upto12-levelsubroutinenesting • Bitmanipulationinstruction Peripheral Features • FlashProgramMemory:4K×16~16K×16 • RAMDataMemory:512×8~1024×8 • USB2.0FullSpeedcompatible • Upto8endpointssupportedincludingendpoint0 • Allendpointsexceptendpoint0cansupportinterruptandbulktransfer • Allendpointsexceptendpoint0canbeconfiguredas8,16,32,64bytesFIFOsize • Endpoint0supportcontroltransfer • Endpoint0has8byteFIFO • Support3.3VLDOandinternalUDP1.5kΩpull-upresistor • Internal12MHzRCOSCwith0.25%accuracyforallUSBmodes • WatchdogTimerfunction • Upto45bidirectionalI/Olines • Dualpin-sharedexternalinterrupts |
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