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6.6 DC ELECTRICAL CHARACTERISTICS—NMSI1 IN IDL MODE
Characteristic
Input Low Level Voltage
Input High Level Voltage
Input Low Level Current
Input High Level Current
Output Low Level Voltage
Output High Level Voltage
6.7 AC ELECTRICAL SPECIFICATIONS—CLOCK TIMING
(see Figure 6-1, Figure 6-2, Figure 6-3, and Figure 6-4)
Num.
Frequency of Operation
1
Clock Period (EXTAL) (See note 3)
2, 3
Clock Pulse Width (EXTAL)
4, 5
Clock Rise and Fall Times (EXTAL)
5a
EXTAL to CLKO Delay (See Notes 1 and 2)
NOTE:
1. CLKO loading is 50 pF max.
2. CLKO skew from the rising and falling edges of EXTAL will not differ from each other by more than 1 ns, if the
EXTAL rise time equals the EXTAL fall time.
3. You may not stop the clock input at any time.
EXTAL
V
CIL
CLKO
MOTOROLA
Symbol
Input Pin Characteristics: L1CLK, L1SY1, L1RXD, L1GR
V
IL
V
IH
II
L
II
H
Output Pin Characteristics: L1TXD, SDS1- SDS2, L1RQ
V
OL
V
OH
Characteristic
V
= 4V
CIH
= 0.6V
5
Figure 6-1. Clock Timing Diagram
MC68302 USER'S MANUAL
Min
Max
-10%
+ 20%
V
- 20%
V
+ 10%
DD
DD
—
10
—
10
0
1.0
V
- 1.0
V
DD
DD
16.67 MHz
Symbol
Min
Max
f
8
16.67
t
60
125
cyc
t
, t
25
62.5
CL
CH
t
, t
—
5
Cr
Cf
t
2
11
CD
1
2
3
4
5a
5a
Electrical Characteristics
Unit
Condition
(% of V
V
DD
V
V
= V
A
in
ss
V
= V
A
in
DD
I
= 5.0 mA
V
OL
I
= 400 A
V
OH
20 MHz
25 MHz
Min
Max
Min
Max
8
20
8
25
50
125
40
125
21
62.5
16
62.5
—
4
—
4
2
9
2
7
)
Unit
MHz
ns
ns
ns
ns
6-5
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