解密

下面是关于em78p153s芯片的主要性能特征介绍，我们提供给广大客户及其他各类技术工程师参考借鉴。

14-leadpackages:em78p153s

em78p153sisan8-bitmicroprocessorwithlow-powerandhigh-speedcmostechnology.itisequippedwitha14x13-bitselectricalonetimeprogrammablereadonlymemory(otp-rom)withinit.itprovidesaprotectionbittopreventintrusionofuser’scodeintheotpmemoryaswellas15optionbitstomatchuser’srequirements.withitsotp-romfeature,theem78p153soffersusersaconvenientwayofdevelopingandverifyingtheirprograms.moreover,userdevelopedcodecanbeeasilyprogrammedwiththeelanwriter.

operatingvoltagerange:3v~5v

operatingfrequencyrange(baseon2clocks):

*ercmode:dc~4mhzat5v,dc~4mhzat3v,dc~4mhzat3v.

lowpowerconsumption:

*lessthen5maat5v/4mhz

*typicalof1?a,duringthesleepmode

14x13bitsonchiprom

built-incalibratedircoscillators(8mhz,4mhz,1mhz,455khz)

programmableprescalerofoscillatorset-uptime

onesecurityregistertopreventthecodeintheotpmemoryfromintruding

oneconfigurationregistertomatchtheuser’srequirements

32×8bitsonchipregisters(sram,generalpurposeregister)

2bi-directionali/oports

5levelstacksforsubroutinenesting

8-bitrealtimeclock/counter(tcc)withselectivesignalsourcesandtriggeredges,

andwithoverflowinterrupt

powerdownmode(sleepmode)

threeavailableinterruptions

*tccoverflowinterrupt

*input-portstatuschangedinterrupt(wakeupfromthesleepmode)

*externalinterrupt

programmablefreerunningwatchdogtimer

7programmablepull-highi/opins

7programmableopen-draini/opins

6programmablepull-downi/opins

twoclocksperinstructioncycle

packagetype:14pinssop,dip

*14pindip300mil:em78p153sp

*14pinsop150mil:em78p153sn

thetransientpointofsystemfrequencybetweenhxtandlxtisaround400khz.

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