CY7C271A Просмотр технического описания (PDF) - Cypress Semiconductor
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CY7C271A Datasheet PDF : 10 Pages
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CY7C271A
AC Test Loads and Waveforms
R1 500Ω
5V
658Ω MIL
R1 500Ω
5V
658Ω MIL
3.0V
OUTPUT
OUTPUT
30 pF
R2 333Ω
403Ω MIL
5 pF
R2 333Ω GND
403Ω MIL
INCLUDING
INCLUDING
≤ 5 ns
JIG AND
JIG AND
SCOPE
SCOPE
(a) NormalLoad
(b) High-Z Load
Equivalent to:
OUTPUT
THÉVENIN EQUIVALENT
200Ω
250Ω MIL
2.00V Commercial
1.90V MIL
ALL INPUT PULSES
90%
10%
90%
10%
≤ 5 ns
Switching Characteristics Over the Operating Range[2, 3]
7C271A-25
7C271A-30
7C271A-35
7C271A-45
Parameter
Description
Min. Max. Min. Max. Min. Max. Min. Max. Unit
tAA
tACS
Address to Output Valid
CS1/CS2 Active to
Output Valid
25
30
35
45
ns
12
18
18
18
ns
tACE
tHZCS
tHZCE
tPU
tPD
CE Active to Output Valid
30
35
35
45
ns
CS1/CS2 Inactive to High Z
12
18
18
18
ns
CE Inactive to High Z
12
18
18
18
ns
CE Active to Power-Up
0
0
0
0
ns
CE Inactive to
Power-Down
30
35
40
40
ns
tOH
Output Data Hold
0
0
0
0
ns
Document #: 38-04013 Rev. *B
Page 3 of 10
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