CY7C266-45PC 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C266-45PC Datasheet PDF : 11 Pages
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AC Test Loads and Waveforms
Test Load for -20 through -25 speeds
5V
OUTPUT
R1 500
(658Ω MIL)
5V
OUTPUT
R1 500Ω
(658Ω MIL)
30 pF
INCLUDING
JIG AND
SCOPE
R2 333Ω
(403Ω MIL)
5 pF
INCLUDING
JIG AND
SCOPE
R2 333Ω
(403Ω MIL)
(a) NormalLoad
Equivalent to: THÉ VENIN EQUIVALENT
OUTPUT
RTH 200
250 MIL
(b) HighZ Load
Test Load for -35 through -45 speeds
R1250 Ω
5V
5V
OUTPUT
OUTPUT
R1 250Ω
30pF
INCLUDING
JIG AND
SCOPE
R2167 Ω
5 pF
INCLUDING
JIG AND
SCOPE
R2167 Ω
(c) Normal Load
Equivalent to: THÉ VENIN EQUIVALENT
OUTPUT
RTH 100Ω
2.0V
(d) High Z Load
3.0V
GND
< 5 ns
90%
10%
CY7C266
90%
10%
< 5 ns
Switching Characteristics Over the Operating Range[2]
7C266-20
7C266-25
7C266-45
Parameter
Description
Min. Max. Min. Max. Min. Max. Unit
tAA
tHZCE
tHZOE
tAOE
tACE
tOHA
tPU
tPD
Address to Output Valid
20
25
45
ns
Chip Enable Inactive to High Z
25
30
45
ns
Output Enable Inactive to High Z
12
12
20
ns
Output Enable Active to Output Valid
12
12
20
ns
Chip Enable Active to Output Valid
25
30
45
ns
Data Hold from Address Change
3
3
3
ns
Chip Enable Active to Power-up
25
30
45
ns
Chip Enable Inactive to Power-down
25
30
45
ns
Document #: 38-04005 Rev. *B
Page 4 of 11
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