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參數(shù)資料
| 型號(hào)： | AM486DX4 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | High-Performance, Clock-Selectable, 3.3 V, 32-Bit Microprocessor(3.3V高性能時(shí)鐘可選32位微處理器) |
| 中文描述： | 高性能，時(shí)鐘可選，3.3伏，32位微處理器（3.3高性能時(shí)鐘可選32位微處理器） |
| 文件頁(yè)數(shù)： | 19/26頁(yè) |
| 文件大小： | 335K |
| 代理商： | AM486DX4 |
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19
Am486DX4 Microprocessor
AMD
P R E L I M I N A R Y
Am486DX4 CPU AC Characteristics for Boundary Scan Test Signals at 25 MHz
V
CC
= 3.3 V
±
0.3 V; T
CASE
=0
°
C to +85
°
C; C
L
= 50 pF. All inputs and outputs are TTL Level.
Notes:
1. Rise/Fall times are measured between 0.8 V and 2.0 V. Rise/Fall times can be relaxed by 1 ns per 10-ns increase in TCK
period.
2. TCK period > CLK period.
3. Parameter measured from TCK.
Symbol
Parameter
Min
Max
Unit
Figure
Notes
t
24
TCK Frequency
25
MHz
1X Clock
t
25
TCK Period
40
ns
9
Note 2
t
26
TCK High Time
10
ns
at 2.0 V
t
27
TCK Low Time
10
ns
at 0.8 V
t
28
TCK Rise Time
4
ns
Note 1
t
29
TCK Fall Time
4
ns
Note 1
t
30
TDI, TMS Setup Time
8
ns
9
Note 3
t
31
TDI, TMS Hold Time
7
ns
9
Note 3
t
32
TDO Valid Delay
3
25
ns
9
Note 3
t
33
TDO Float Delay
30
ns
9
Note 3
t
34
All Outputs (Non-Test) Valid Delay
3
25
ns
9
Note 3
t
35
All Outputs (Non-Test) Float Delay
36
ns
9
Note 3
t
36
All Inputs (Non-Test) Setup Time
8
ns
9
Note 3
t
37
All Inputs (Non-Test) Hold Time
7
ns
9
Note 3
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