HT48R10A datasheet(21/42 Pages) HOLTEK

21 / 42 page

Application Circuits

HT48R10A-1

Rev. 1.20

July 2, 2001

PB 0 / BZ

PB 1 / BZ

OS C 1 / P C 3

OS C 2 / P C 4

PA0 ~ P A 7

RE S

IN T / P C 0

TM R / P C 1

V DD

PB2 ~ P B 7

PC 2

VD D

470 pF

NM O S

ope n dr ai n

VS S

0. 1 m F

100 k W

0. 1 m F

PB 0 / BZ

PB 1 / BZ

OS C 1 / P C 3

OS C 2 / P C 4

PA0 ~ P A 7

HT 4 8 R1 0 A - 1

RE S

IN T / P C 0

TM R / P C 1

V DD

PB2 ~ P B 7

PC 2

VD D

VS S

0. 1 m F

100 k W

0. 1 m F

51k W ~

1M W

HT 4 8 R1 0 A - 1

RC oscillator for multiple I/O applications

Crystal or ceramic resonator for multiple I/O

applications

Internal RC oscillator for multiple I/O

applications

Internal RC oscillator with RTC for multiple I/O

applications

PB 0 / BZ

PB 1 / BZ

OS C 1 / P C 3

OS C 2 / P C 4

PA0 ~ P A 7

HT 4 8 R1 0 A - 1

RE S

IN T / P C 0

TM R / P C 1

V DD

PB2 ~ P B 7

PC 2

VD D

VS S

0. 1 m F

100 k W

0. 1 m F

PB 0 / BZ

PB 1 / BZ

OS C 1 / P C 3

OS C 2 / P C 4

PA0 ~ P A 7

HT 4 8 R1 0 A - 1

RE S

IN T / P C 0

TM R / P C 1

V DD

PB2 ~ P B 7

PC 2

VD D

VS S

0. 1 m F

100 k W

0. 1 m F

3276 8H z

Note: C1=C2=300pF if fSYS<1MHz

Otherwise, C1=C2=0

Note: The resistance and capacitance for reset circuit should be designed in such a way as to ensure

that the VDD is stable and remains within a valid operating voltage range before bringing

RES to high.

HT48R10A Scheda tecnica(PDF) 21 Page - Holtek Semiconductor Inc

HT48R10A Scheda tecnica(HTML) 21 Page - Holtek Semiconductor Inc

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