参数资料
型号: Enhanced Am486 dx4
厂商: Advanced Micro Devices, Inc.
英文描述: High-Performance Design On-Chip Integration Complete 32-Bit Architecture Micrprocessor(高性能设计片上集成完全32位体系微处理器)
中文描述: 高性能设计的片上集成完整的32位架构Micrprocessor(高性能设计片上集成完全32位体系微处理器)
文件页数: 62/69页
文件大小: 1068K
代理商: ENHANCED AM486 DX4
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; T
CASE
= 0°C to +85°C; C
L
= 50 pF unless otherwise specified
Symbol
Parameter
Min
Max
Unit
Figure
Notes
t
24
TCK Frequency
25
MHz
1X Clock
t
25
TCK Period
40
ns
45, 46
Note 1
t
26
TCK High Time at 2 V
10
ns
45
t
27
TCK Low Time at 0.8 V
10
ns
45
t
28
TCK Rise Time (0.8 V–2 V)
4
ns
45
Note 2
t
29
TCK Fall Time (2 V–0.8 V)
4
ns
45
Note 2
t
30
TDI, TMS Setup Time
8
ns
46
Note 3
t
31
TDI, TMS Hold Time
7
ns
46
Note 3
t
32
TDO Valid Delay
3
25
ns
46
Note 3
t
33
TDO Float Delay
36
ns
46
Note 3
t
34
All Outputs (Non-Test) Valid Delay
3
25
ns
46
Note 3
t
35
All Outputs (Non-Test) Float Delay
30
ns
46
Note 3
t
36
All Inputs (Non-Test) Setup Delay
8
ns
46
Note 3
t
37
All inputs (Non-Test) Hold Time
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.
7
ns
46
Note 3
Notes:
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