參數(shù)資料
型號(hào): S80486-DX4-75-S-V-8-B
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 75 MHz, MICROPROCESSOR, PQFP208
封裝: SQFP-208
文件頁數(shù): 59/69頁
文件大?。?/td> 1070K
代理商: S80486-DX4-75-S-V-8-B
Enhanced Am486 Microprocessor
AMD
62
PRELIMINARY
Enhanced Am486 Microprocessor AC Characteristics for
Boundary Scan Test Signals at 25 MHz
V
CC = 3.3 V ±0.3 V; TCASE = 0°C to +85°C; CL = 50 pF unless otherwise specified
Symbol
Parameter
Min
Max
Unit
Figure
Notes
t24
TCK Frequency
25
MHz
1X Clock
t25
TCK Period
40
ns
45, 46
Note 1
t26
TCK High Time at 2 V
10
ns
45
t27
TCK Low Time at 0.8 V
10
ns
45
t28
TCK Rise Time (0.8 V–2 V)
4
ns
45
Note 2
t29
TCK Fall Time (2 V–0.8 V)
4
ns
45
Note 2
t30
TDI, TMS Setup Time
8
ns
46
Note 3
t31
TDI, TMS Hold Time
7
ns
46
Note 3
t32
TDO Valid Delay
3
25
ns
46
Note 3
t33
TDO Float Delay
36
ns
46
Note 3
t34
All Outputs (Non-Test) Valid Delay
3
25
ns
46
Note 3
t35
All Outputs (Non-Test) Float Delay
30
ns
46
Note 3
t36
All Inputs (Non-Test) Setup Delay
8
ns
46
Note 3
t37
All inputs (Non-Test) Hold Time
7
ns
46
Note 3
Notes:
1.
TCK period
≥ CLK period.
2.
Rise/Fall times can be relaxed by 1 ns per 10-ns increase in TCK period.
3.
Parameter measured from TCK.
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