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HT66F20 Datasheet(PDF) 236 Page - Holtek Semiconductor Inc

Part # HT66F20
Description  Enhanced A/D Flash Type 8-Bit MCU with EEPROM
PDF  298 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F20 Datasheet(HTML) 236 Page - Holtek Semiconductor Inc

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HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
Enhanced A/D Flash Type 8-Bit MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
Enhanced A/D Flash Type 8-Bit MCU with EEPROM
UART Module Serial Interface
UART Module Features
• InterconnectedtoHoltekMCUviaSPIinterface
• Full-duplex,UniversalAsynchronousReceiverandTransmitter(UART)communication
♦
8or9bitcharacterlength
♦
Even,oddornoparityoptions
♦
Oneortwostopbits
♦
Baudrategeneratorwith8-bitprescaler
♦
Parity,framing,noiseandoverrunerrordetection
♦
Supportforinterruptonaddressdetect
♦
AddressDetectInterrupt-lastcharacterbit=1
♦
Transmitterandreceiverenabledindependently
♦
4-bytedeepFIFOreceiverdatabuffer
♦
TransmitandReceiveMultipleInterruptGenerationSources:
– TransmitterEmpty
– TransmitterIdle
– ReceiverFull
– ReceiverOverrun
– AddressModeDetect
♦
TXpinishighimpedancewhentheUARTtransmitmoduleisdisabled
♦
RXpinishighimpedancewhentheUARTreceivemoduleisdisabled
• CMOSclockinput,CLKI,upto20MHzat5Voperatingvoltage
UART Module Overview
Thedevicecontainsafullyembeddedfull-duplexasynchronousserialcommunicationsUART
interfacethatenablesdatatransmissionanddatareceptionwithexternaldevices.Possible
applicationscouldincludedatacommunicationnetworksbetweenmicrocontrollers,low-costdata
linksbetweenPCsandperipheraldevices,portableandbatteryoperateddevicecommunication,
factoryautomationandprocesscontroltonamebutafew.
UART Module Block Diagram
SD I
SD O
SC K
SC S
VD D
CL KI
IN T
GN D
UAR T M odul e
V DD
TX
RX
UA RT
In te rf ac e
SPI
In te rf ac e



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