MC68HC908JK3EMP MOTOROLA [Motorola, Inc], MC68HC908JK3EMP Datasheet - Page 220
MC68HC908JK3EMP
Manufacturer Part Number
MC68HC908JK3EMP
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908JK3EMP.pdf
(226 pages)
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MC68HLC908JL3E/JK3E/JK1E
A.6.3 Control Timing
A.6.4 Oscillator Characteristics
Technical Data
220
NOTES:
Internal operating frequency
RST input pulse width low
1. V
2. Some modules may require a minimum frequency greater than dc for proper operation; see appropriate table for this infor-
3. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse width to cause a reset.
mation.
DD
= 2.2 Vdc, V
NOTES:
Crystal frequency, XTALCLK
External clock
Crystal load capacitance
Crystal fixed capacitance
Crystal tuning capacitance
Feedback bias resistor
Series resistor
1. No more than 10% duty cycle deviation from 50%
2. Consult crystal vendor data sheet
3. Not Required for high frequency crystals
reference frequency
Characteristic
SS
= 0 Vdc, T
(2), (3)
Characteristic
Table A-4. Oscillator Component Specifications
(3)
(2)
(1)
A
= T
(2)
(2)
L
(2)
to T
(1)
H
Table A-3. Control Timing
MC68HLC908JL3E/JK3E/JK1E
; timing shown with respect to 20% V
f
f
Symbol
OSCXCLK
OSCXCLK
R
R
C
C
C
B
S
L
1
2
Min
—
dc
—
—
—
—
—
Symbol
t
f
OP
IRL
MC68H(R)C908JL3E/JK3E/JK1E
10 M Ω
2 × C
2 × C
Typ
—
—
—
—
DD
L
L
and 70% V
Min
1.5
—
Max
—
—
—
—
—
8
8
DD
, unless otherwise noted.
Max
—
2
MHz
MHz
Unit
MOTOROLA
—
MHz
Unit
Rev. 2.0
µ s
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