HT83050 datasheet(7/40 Pages) HOLTEK

tên linh kiện	HT83050

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A.C. Characteristics

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

fSYS1

System Clock (RC OSC)

¾ 2.4V~5.2V

MHz

fSYS2

System Clock (Crystal OSC)

¾ 2.4V~5.2V

MHz

fTIMER

Timer Input Frequency

¾ 2.4V~5.2V

MHz

tWDTOSC Watchdog Oscillator Period

100

200

148

tWDT1

Watchdog Time-out Period

(WDT OSC)

Without WDT prescaler

tWDT2

Watchdog Time-out Period

(System Clock)

¾ Without WDT prescaler

1024

tSYS

tRES

External Reset Low Pulse Width

¾¾

tSST

System Start-up Timer Period

¾ Power-up or Wake-up from HALT

1024

tSYS

tINT

Interrupt Pulse Width

¾¾

tDRT

Data ROM Access Timer

¾¾

tDRR

Data ROM enable Read

¾ Read after data ROM enable

¾¾

Characteristics Curves

R vs. F Characteristics Curve

HT83XXX

Rev. 1.60

November 19, 2008

R ( k W )

H T 8 3 X X X R v s . F C h a r t

1 4 4

1 8 8

2 7 5

5 6 0

3 V

4 . 5 V

1 0

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