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參數(shù)資料
| 型號： | 20V8 |
| 廠商： | Cypress Semiconductor Corp. |
| 元件分類： | PAL |
| 英文描述： | Flash Erasable, Reprogrammable CMOS PAL Device |
| 中文描述： | 閃光可擦除，可再編程的CMOS PAL制式設備 |
| 文件頁數(shù)： | 6/14頁 |
| 文件大?。?/td> | 352K |
| 代理商： | 20V8 |
PALCE20V8
Document #: 38-03026 Rev. **
Page 6 of 14
Commercial and Industrial Switching Characteristics
[2]
20V8
5
Min.
1
20V8
7
Min.
1
20V8
10
Min.
1
20V8
15
Min.
1
20V8
25
Min.
1
Parameter
t
PD
Description
Max.
5
Max.
7.5
Max.
10
Max.
15
Max.
25
Unit
ns
Input to Output
Propagation Delay
[8]
OE to Output Enable
OE to Output Disable
Input to Output
Enable Delay
[7]
Input to Output
Disable Delay
[7,9]
Clock to Output Delay
[8]
Input or Feedback
Set-Up Time
Input Hold Time
External Clock Period
(t
CO
+ t
S
)
Clock Width HIGH
[7]
Clock Width LOW
[7]
External Maximum
Frequency (1/(t
CO
+ t
S
))
[7,10]
Data Path Maximum
Frequency
(1/(t
WH
+ t
WL
))
[7, 11]
Internal Feedback Maximum
Frequency (1/(t
CF
+ t
S
))
[7,12]
Register Clock to
Feedback Input
[7, 13]
Power-Up Reset Time
[7]
t
PZX
t
PXZ
t
EA
5
5
6
6
6
9
10
10
10
15
15
15
20
20
25
ns
ns
ns
t
ER
6
9
10
15
25
ns
t
CO
t
S
1
3
4
1
7
5
1
7
1
10
1
12
ns
ns
10
12
15
t
H
t
P
0
7
0
0
0
0
ns
ns
12
17
22
27
t
WH
t
WL
f
MAX1
3
3
5
5
8
8
8
8
12
12
37
ns
ns
MHz
143
83
58
45.5
f
MAX2
166.
6
100
62.5
62.5
41.6
MHz
f
MAX3
166.
6
100
62.5
50
40
MHz
t
CF
3
3
6
8
10
ns
t
PR
Shaded area contains preliminary information.
Notes:
8.
Min. times are tested initially and after any design or process changes that may affect these parameters.
9.
This parameter is measured as the time after OE pin or internal disable input disables or enables the output pin. This delay is measured to the point at which a previous
HIGH level has fallen to 0.5 volts below V
min. or a previous LOW level has risen to 0.5 volts above V
max.
10. This specification indicates the guaranteed maximum frequency at which a state machine configuration with external feedback can operate.
11.
This specification indicates the guaranteed maximum frequency at which the device can operate in data path mode.
12. This specification indicates the guaranteed maximum frequency at which a state machine configuration with internal only feedback can operate.
13. This parameter is calculated from the clock period at f
MAX
internal (1/f
MAX3
) as measured (see Note 7 above) minus t
S
.
1
1
1
1
1
μ
s
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