HT86AR72 datasheet(13/68 Pages) HOLTEK

13 / 68 page

A.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

fSYS

System Clock

(RC OSC, Crystal OSC)

HT86AXX:2.0V~5.5V

HT86ARXX:2.2V~5.5V

MHz

tWDTOSC

Watchdog Oscillator Period

180

130

tRES

External Reset Low Pulse Width

¾¾

tSST

System Start-up Timer Period

Power-up or Wake-up

from HALT

1024

*tSYS

tLVR

Low Voltage Reset Time

¾¾

tINT

Interrupt Pulse Width

¾¾

tAD

A/D Clock Period

¾¾

1.0

¾¾

tADC

A/D Conversion Time

¾¾

tAD

tADC

A/D Sampling Time

¾¾

tAD

tMAT

Circumscribe Memory Access Time

HT86AXX:2.0V~5.5V

HT86ARXX:2.2V~5.5V

¾¾

400

Note: *tSYS=1/fSYS

Characteristics Curves

HT86AXX

· R vs. F Chart Characteristics Curves

· T vs. F Chart Characteristics Curves

HT86Axx/HT86ARxx

Rev. 1.00

March 19, 2010

R v s . F C h a r t

R ( k W )

1 4 6

1 8 8

2 7 6

3 5 7

4 0 9

3 . 0 V

4 . 5 V

1 0

T ( ° C )

0 . 9 1

0 . 9 5

0 . 9 9

1 . 0 3

1 . 0 7

1 . 1 1

1 . 1 5

- 6 0

- 4 0

- 2 0

2 0

4 0

6 0

8 0

1 0 0

T v s . F C h a r t

V D D = 3 V

V D D = 5 V

V D D = 3 V

V D D = 5 V

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