參數(shù)資料
型號: MC68EC000D
廠商: Motorola, Inc.
英文描述: Addendum to M68000 User Manual
中文描述: 增編M68000用戶手冊
文件頁數(shù): 11/26頁
文件大小: 249K
代理商: MC68EC000D
11
M68000 USER’S MANUAL ADDENDUM
MOTOROLA
6.0 MC68SEC000 AC ELECTRICAL SPECIFICATIONS — CLOCK
TIMING (See Figure 2)
Add the following table and Figure 8 to Section 10.9 on page 10-9.
Applies to 3.3V and 5V.
Figure 8. MC68SEC000 Clock Input Timing Diagram
10MHz
16MHz
20MHz
NUM.
CHARACTERISTIC
Frequency of Operation
Cycle time
Clock Pulse Width
SYMBOL
f
tcyc
t
CL
t
CH
t
Cr
t
Cf
MIN
0
100
45
45
MAX
10.0
min
0
60
27
27
max
16.7
min
0
50
21
21
max
20.0
UNIT
MHz
ns
ns
1
2,3
4,5
Clock Rise and Fall Times
10
10
5
5
4
4
ns
0.8 V
2.0 V
4
5
1
2
3
NOTE: Timing measurements are referenced to and from a low voltage of 0.8 V and a
high voltage of 2.0 V, unless otherwise noted. The voltage swing through this
range should start outside and pass through the range such that the rise or
fall will be linear between 0.8 V and 2.0 V.
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