HT68F13 datasheet(122/161 Pages) HOLTEK

122 / 161 page

ConfigurationOptions

Configuration options refer to certain options within the MCU that are programmed into the device

during the programming process. During the development process, these options are selected using the

HT-IDE software development tools. As these options are programmed into the device using the

hardware programming tools, once they are selected they cannot be changed later using the application

program. All options must be defined for proper system function, the details of which are shown in the

table.

No.

Options

OscillatorOptions

HighSpeedSystemOscillatorSelection- fH: HXT, ERC, HIRC

HighSpeedInternalRCFrequencySelection:4MHz,8MHzor12MHz

ResetPinOptions

Pinfunction: RES orPB3

WatchdogOptions

WatchdogTimer:enableordisable

WatchdogTimerclocksourceSelection: fSUB or fSYS/4

Note:The fSUB andthe fTBC clocksourcearethe LIRC oscillator.

CLRWDT instructions:1or2instructions

LVR Options

LVR function:enableordisable

LVR voltage:2.10V,2.55V,3.15Vor4.2V

ApplicationCircuits

Note:

²*² Itisrecommendedthatthiscomponentisaddedforadded ESD protection.

²**² Itisrecommendedthatthiscomponentisaddedinenvironmentswherepowerlinenoiseissignificant.

HT68F13/HT68F14/HT68F15

EnhancedI/OFlashTypeMCU

Rev.1.10

122

February9,2011

O S C 1

O S C 2

O S C

C i r c u i t

S e e O s c i l l a t o r

S e c t i o n

R E S

V D D

V S S

0 . 1 m F

V D D

R e s e t

C i r c u i t

0 . 1 ~ 1 m F

1 0 k W ~

1 0 0 k W

3 0 0 W *

0 . 0 1 m F * *

1 N 4 1 4 8 *

P A 4 ~ P A 7

P B 0 , P B 4 ~ P B 7

P C 0 ~ P C 7

P D 0 ~ P D 1

HT68F13 Datasheet(PDF) 122 Page - Holtek Semiconductor Inc

HT68F13 Datasheet(HTML) 122 Page - Holtek Semiconductor Inc

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