z8f083a ZiLOG Semiconductor, z8f083a Datasheet - Page 166

• Manufacturer Part Number: z8f083a
• Description: High-performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS026308-1207
Figure 24. Typical RC Oscillator Frequency as a Function of the External Capacitance with a 45 K
4000
3750
3500
3250
3000
2750
2500
2250
2000
1750
1500
1250
1000
750
500
250
0
Caution:
0
20
It is possible to operate the RC oscillator using only the parasitic capacitance of the
package and printed circuit board. To minimize sensitivity to external parasitics, external
capacitance values in excess of 20 pF are recommended.
40
60
80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500
When using the external RC OSCILLATOR mode, the oscillator stops
oscillating if the power supply drops below 2.7 V, but before the power
supply drops to the VBO threshold. The oscillator resumes oscillation
when the supply voltage exceeds 2.7 V.
Resistor
C (pF)
Z8 Encore!
Product Specification
®
F083A Series
Crystal Oscillator
Ω
154