XC68HC08KH12 Motorola, XC68HC08KH12 Datasheet - Page 251

• Manufacturer Part Number: XC68HC08KH12
• Description: MICROCONTROLLER
• Manufacturer: Motorola

17.7 Control Timing
17.8 Oscillator Characteristics
MC68HC(7)08KH12
MOTOROLA
Internal Operating Frequency
RST Input Pulse Width Low
Crystal Frequency
External Clock
Crystal Load Capacitance
Crystal Fixed Capacitance
Crystal Tuning Capacitance
Feedback Bias Resistor
Series Resistor
NOTES:
1. V
2. Some modules may require a minimum frequency greater than dc for proper operation; see appropriate table for this
3. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse width to cause a reset.
Reference Frequency
NOTES:
1. The USB module is designed to function at f
2. No more than 10% duty cycle deviation from 50%
3. Consult crystal vendor data sheet
4. Not Required for high frequency crystals
information.
oscillator specifications.
DD
= 4.0 to 5.5 Vdc, V
Characteristic
(3), (4)
(1)
—
Rev. 1.0
(1), (2)
Characteristic
SS
(3)
(3)
(3)
(3)
= 0 Vdc; timing shown with respect to 20% V
(2)
Preliminary Electrical Specifications
f
f
Symbol
CGMXCLK
CGMXCLK
CGMXCLK
C
C
C
R
R
B
S
L
1
2
= 6MHz and CGMVCLK = 48MHz. The values given here are
Min
—
dc
—
—
—
—
—
Symbol
t
f
DD
IRL
OP
2
2
and 70% V
Typ
10
—
—
—
6
C
C
L
L
Preliminary Electrical Specifications
Min
50
—
DD
, unless otherwise noted.
Max
24
—
—
—
—
—
—
Advance Information
Max
—
6
Control Timing
Unit
MHz
MHz
M
MHz
Unit
ns
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