em78p510nso32j/s ELAN Microelectronics Corp, em78p510nso32j/s Datasheet - Page 56

• Manufacturer Part Number: em78p510nso32j/s
• Description: 8-bit Microprocessor With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P510N
8-Bit Microprocessor with OTP ROM
50 •
In most applications, pin R-OSCI and pin OSCO can be connected with a crystal or
ceramic resonator to generate oscillation. Figure 6-7 depicts such circuitry. Table 5
provides the recommended values of C1 and C2. Since each resonator has its own
attribute, user should refer to its specification for appropriate values of C1 and C2. RS,
a serial resistor, may be necessary for AT strip cut crystal or low frequency mode.
Table 5 Capacitor Selection Guide for Crystal Oscillator or Ceramic Resonators
Oscillator Source
Main Oscillator
Sub-oscillator
Ceramic Resonators
Crystal
Oscillator
Crystal Oscillator
Oscillator Type
Figure 6-7 Circuit for Crystal/Resonator
100K~1 MHz
1M~6 MHz
6M~12 MHz
12M~20 MHz
(This specification is subject to change without further notice)
Frequency
32.768kHz
10.0 MHz
12.0 MHz
16.0 MHz
20.0 MHz
2.0 MHz
4.0 MHz
1.0 MHz
2.0 MHz
4.0 MHz
6.0 MHz
8.0 MHz
455kHz
100kHz
200kHz
455kHz
Product Specification (V1.1) 01.25.2008
C1 (pF)
30
30
30
68
30
30
30
30
30
30
30
30
30
20
15
40
C2 (pF)
30
30
30
68
30
30
30
30
30
30
30
30
30
20
15
40