em78p257 ELAN Microelectronics Corp, em78p257 Datasheet - Page 79

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

Fig. 39 Internal RC 1M and 4MHz OSC Frequency vs. Temperature Join Process Drifts, VDD=3V
Fig. 40 Internal RC 32K and 455KHz OSC Frequency vs. Temperature Join Process Drifts, VDD=3V
This specification is subject to change without prior notice.
700
600
500
400
300
200
100
0
6
5
4
3
2
1
0
0
0
IRC 32K and 455KHz OSC Frequency (VDD=3V)
I R C 1 M a n d 4 M H z O S C F r e q u e n c y ( V D D = 3 V )
10
10
20
20
OSC = 4MHz
Temperature (¢J)
Temperature (¢J)
OSC = 1MHz
30
30
OSC = 455KHz
OSC = 32KHz
79
40
40
50
50
60
60
EM78P257
70
OTP ROM
70
06.27.2003(V1.2)