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| 80CL31 Datasheet, PDF (24/40 Pages) NXP Semiconductors – Low-voltage single-chip 8-bit microcontrollers | |||
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Philips Semiconductors
Low-voltage single-chip 8-bit microcontrollers
Product specification
80CL31/80CL51
1.7.2 RC Oscillator (see Figure 16)
The externally adjustable RC-oscillator has a frequency range from 100 kHz to 500 kHz.
Rf
XTAL1
C1i
V1
gm
R2
SCHMITT
TRIGGER
XTAL2
C2i
Figure 15. Equivalent Circuit Diagram
600
fosc
(kHz)
400
200
0
0
2
4
6
RC(µs)
Figure 16. Frequency as a Function of RC
January 1995
24
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