MC68HC05E0 Datasheet, PDF (19/96 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

R_SMAX
C₀
C₁
C_OSC1
C_OSC2
R_P
Q
Crystal
2 MHz
400
5
0.008
15 - 40
15 - 30
10
30
4 MHz
75
7
0.012
15 - 30
15 - 25
10
40
Units
Ω
pF
µF
pF
pF
MΩ
K
Ceramic Resonator
2
2 - 4 MHz
Units
R_S (typical)
10
Ω
C₀
40
pF
C₁
4.3
pF
C_OSC1
30
pF
C_OSC2
30
pF
R_P
1 - 10
MΩ
Q
1250
–
(a) Crystal/Ceramic Resonator Parameters
MC68HC05E0
OSC1
OSC2
R_P
OSC1
L ^C1 R_s
C₀
OSC2
(c) Equivalent Crystal Circuit
C_OSC1
C_OSC2
(b) Crystal/Ceramic Resonator
Oscillator Connections
MC68HC05E0
OSC1
OSC2
Unconnected
External Clock
(d) External Clock Source Connections
Figure 2-1 Oscillator Connections
MC68HC05E0
FUNCTIONAL PIN DESCRIPTION
MOTOROLA
2-3