Operating voltage: fSYS=4MHz: 2.2V~5.5V fSYS=8MHz: 3.3V~5.5V 13 to 23 bidirectional I/O lines External interrupt input shared with an I/O line 8-bit programmable Timer/Event Counter with overflow interrupt and 7-stage prescaler On-chip crystal and RC oscillator Watchdog Timer function PFD for audio frequency generation Power down and wake-up functions to reduce power consumptionPDF Datacheet Download,集成电路参数 Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V 4 or 6-level subroutine nesting 4 channels 8 or 9-bit resolution A/D converter 1 or 2 channel 8-bitPWMoutput shared with I/O lines Bit manipulation instruction Table read instructions 63 powerful instructions All instructions executed in one or two machine cycles Low voltage reset function Range of packaging types
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