em78p257 ELAN Microelectronics Corp, em78p257 Datasheet - Page 78

• Manufacturer Part Number: em78p257
• Description: 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

This specification is subject to change without prior notice.
Fig. 37 Typical RC OSC Frequency vs. VDD (Cext=100pF, Temperature at 25¢J)
Fig. 38 Typical RC OSC Frequency vs. Temperature (R and C are ideal components)
1.4
1.2
0.8
0.6
0.4
0.2
1
0
2.5
C e x t = 1 0 0 p F , T y p i c a l R C O S C F r e q u e n c y
3
3.5
VDD(Volt)
78
4
R= 3.3K
R = 5.1K
R = 10K
R = 100K
4.5
5
5.5
EM78P257
OTP ROM
06.27.2003(V1.2)