GMS87C1102 datasheet(21/80 Pages) HYNIX

21 / 80 page

HYUNDAI MicroElectronics

GMS87C1102 / GMS87C1202

Oct. 1999 ver 1.0

Table 10-1 RC Oscillator Frequencies

Cext

Rext

Average

Fosc @ 5V,25

°C

24pF

20K

2.02MHz

±14.11%

33K

1.34MHz

±11.50%

47K

0.952MHz

±10.30%

100K

0.48MHz

±9.07%

39pF

20K

1.536MHz

±14.79%

33K

1.012MHz

±11.67%

47K

0.72MHz

±10.42%

100K

0.364MHz

±9.75%

100pF

20K

0.78MHz

±13.53%

33K

0.512MHz

±10.35%

47K

0.364MHz

±9.48%

100K

0.18MHz

±7.34%

T yp ical R C O scilla tor

1.5

1.0

0.5

(M H z )

F OSC

2.5

V DD

(V )

Frequency VS. V DD

2.5

2.0

3.5

4 .5

5 .5

Ta =25

°C

R= 2 0 k

R=3 3K

R= 47 K

R = 100 K

T y p ic a l R C O s cilla to r

1.2

1.0

0.8

(M H z)

F OS C

2.5

V DD

(V )

F requ ency VS. V DD

1.6

1.4

3.5

4 .5

5.5

R = 20K

R = 47K

R = 100K

0.2

0.4

0.6

R = 33K

T yp ica l R C O s cilla to r

0.6

0.5

0.4

(M H z )

F OSC

2.5

V DD

(V )

F reque ncy VS . V DD

0.8

0.7

3.5

4 .5

5 .5

R= 2 0 K

R= 47 K

R = 100K

0.1

0.2

0.3

R = 33K

T y p ic a l R C O s cilla to r

1.0 0 5

1.000

0.9 9 5

0.9 7 5

F OS C

1 03 0

5 07 0

V DD

(V )

F re que ncy VS . T e m p eratu re

1.0 1 0

4 0

0.9 8 0

0.9 8 5

0.9 9 0

V DD =5V

V DD =3 V

F OS C(25 °C)

C e x t=2 4pF

Ta=2 5

°C

C e xt= 39p F

Ta=25

°C

C e x t=100pF

R =25K

Ce x t= 2 4 p F

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