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CY7C225A
Document #: 38-04001 Rev. *B
Page 4 of 9
Switching Characteristics Over the Operating Range[3,4]
7C225A-25
7C225A-30
7C225A-40
Unit
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
tSA
Address Set-Up to Clock HIGH
25
30
40
ns
tHA
Address Hold from Clock HIGH
0
0
0
ns
tCO
Clock HIGH to Valid Output
12
15
25
ns
tPWC
Clock Pulse Width
10
15
20
ns
tSES
ES Set-Up to Clock HIGH
10
10
10
ns
tHES
ES Hold from Clock HIGH
0
5
5
ns
tDP, tDC
Delay from PRESET or CLEAR
to Valid Output
20
20
20
ns
tRP, tRC
PRESET or CLEAR Recovery to
Clock HIGH
15
20
20
ns
tPWP, tPWC
PRESET or CLEAR Pulse Width
15
20
20
ns
tCOS
Valid Output from Clock HIGH[7]
20
20
30
ns
tHZC
Inactive Output from Clock
HIGH[7]
20
20
30
ns
tDOE
Valid Output from E LOW
20
20
30
ns
tHZE
Inactive Output from E HIGH
20
20
30
ns
Note:
7.
Applies only when the synchronous (ES) function is used.
Switching Waveforms[4]
tDP
tDC
tCO
tDOE
tHZE
tHZC
tSA
tHA
tPWC
tHES
tPWC
tPWC
tPWC
tPWC
tPWC
tSES
tHA
tCO
tCOS
O0 − O7
A0 − A10
PS or CLR
CP
ES
E
tRP,tRC
tPWP
tPWC
tHES
tSES
tHES
tSES
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