HT66F20 datasheet(124/298 Pages) HOLTEK

124 / 298 page

Rev. 1.90

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Rev. 1.90

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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

Standard Type TM – STM

TheStandardTypeTMcontainsfiveoperatingmodes,whichareCompareMatchOutput,Timer/

EventCounter,CaptureInput,SinglePulseOutputandPWMOutputmodes.TheStandardTMcan

alsobecontrolledwithanexternalinputpinandcandrivetwoexternaloutputpins.

STM

Name

TM No.

TM Input Pin

TM Output Pin

HT66��0

10-�it STM

TCK1

TP1_0� TP1_1

HT66��0

—

HT66�40

16-�it STM

�

TCK�

TP�_0� TP�_1

HT66�50

16-�it STM

�

TCK�

TP�_0� TP�_1

HT66�60

16-�it STM

�

TCK�

TP�_0� TP�_1

CCRP

CCRA

Tn CC LR

Co mp ar at or P M at ch

Co mp ar at or A Ma tc h

Tn CK 2~ Tn CK 0

Tn ON

Tn PAU

b7 ~b 9 or b 8~ b15

3 or 8 - bi t Co m par at or P

10 o r 16 - bi t

Co mp ar at or A

Co unt er C le ar

10 o r 16- bi t C ount - up C o unt er

Tn PF I nt e rru pt

Tn AF I nt e rru pt

TP n Pi n

I nput /O ut pu t

b0 ~b 9 or

b0 ~b 15

E dge

De te ct or

Tn IO 1, T nI O0

Tn M1 , Tn M0

Tn IO 1, T nI O0

Tn PO L

Tn OC

Po la ri ty

Co nt ro l

Ou t put

Co nt ro l

TP n_0

TP n_1

TC Kn

11 1

00 0

00 1

01 0

01 1

10 0

10 1

11 0

f SYS /4

f SYS

f H /1 6

f H /6 4

f TB C

Re se rv ed

Standard Type TM Block Diagram

Standard TM Operation

TherearetwosizesofStandardTMs,oneis10-bitswideandtheotheris16-bitswide.Atthecoreis

a10or16-bitcount-upcounterwhichisdrivenbyauserselectableinternalorexternalclocksource.

Therearealsotwointernalcomparatorswiththenames,ComparatorAandComparatorP.These

comparatorswillcomparethevalueinthecounterwithCCRPandCCRAregisters.TheCCRP

comparatoris3or8-bitswidewhosevalueiscomparedthewithhighest3or8bitsinthecounter

whiletheCCRAisthetenorsixteenbitsandthereforecomparesallcounterbits.

Theonlywayofchangingthevalueofthe10or16-bitcounterusingtheapplicationprogram,is

toclearthecounterbychangingtheTnONbitfromlowtohigh.Thecounterwillalsobecleared

automaticallybyacounteroverfloworacomparematchwithoneofitsassociatedcomparators.

Whentheseconditionsoccur,aTMinterruptsignalwillalsousuallybegenerated.TheStandard

TypeTMcanoperateinanumberofdifferentoperationalmodes,canbedrivenbydifferentclock

sourcesincludinganinputpinandcanalsocontrolanoutputpin.Alloperatingsetupconditionsare

selectedusingrelevantinternalregisters.

HT66F20 Datasheet(PDF) 124 Page - Holtek Semiconductor Inc

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