CY7C1215H
Document #: 38-05666 Rev. *B
Page 9 of 15
Switching Characteristics
Over the Operating Range
[10, 11]
Parameter
Description
166 MHz
133 MHz
Unit
Min.
Max
Min.
Max
t
POWER
V
DD
(Typical) to the First Access
[12]
1
1
ms
Clock
t
CYC
Clock Cycle Time
6.0
7.5
ns
t
CH
Clock HIGH
2.5
3.0
ns
t
CL
Clock LOW
2.5
3.0
ns
Output Times
t
CO
Data Output Valid after CLK Rise
3.5
4.0
ns
t
DOH
Data Output Hold after CLK Rise
1.5
1.5
ns
t
CLZ
Clock to Low-Z
[13, 14, 15]
0
0
ns
t
CHZ
Clock to High-Z
[13, 14, 15]
3.5
4.0
ns
t
OEV
OE LOW to Output Valid
3.5
4.5
ns
t
OELZ
OE LOW to Output Low-Z
[13, 14, 15]
0
0
ns
t
OEHZ
OE HIGH to Output High-Z
[13, 14, 15]
3.5
4.0
ns
Set-up Times
t
AS
Address Set-up before CLK Rise
1.5
1.5
ns
t
ADS
ADSC, ADSP Set-up before CLK Rise
1.5
1.5
ns
t
ADVS
ADV Set-up before CLK Rise
1.5
1.5
ns
t
WES
GW, BWE, BW
[A:D]
Set-up before CLK Rise
1.5
1.5
ns
t
DS
Data Input Set-up before CLK Rise
1.5
1.5
ns
t
CES
Chip Enable Set-Up before CLK Rise
1.5
1.5
ns
Hold Times
t
AH
Address Hold after CLK Rise
0.5
0.5
ns
t
ADH
ADSP, ADSC Hold after CLK Rise
0.5
0.5
ns
t
ADVH
ADV Hold after CLK Rise
0.5
0.5
ns
t
WEH
GW, BWE, BW
[A:D]
Hold after CLK Rise
0.5
0.5
ns
t
DH
Data Input Hold after CLK Rise
0.5
0.5
ns
t
CEH
Chip Enable Hold after CLK Rise
0.5
0.5
ns
Notes:
10. Timing reference level is 1.5V when V
DDQ
= 3.3V and is 1.25 when V
DDQ
= 2.5V.
11. Test conditions shown in (a) of AC Test Loads unless otherwise noted.
12. This part has a voltage regulator internally; t
POWER
is the time that the power needs to be supplied above V
DD
(minimum) initially before a Read or Write operation
can be initiated.
13. t
CHZ
, t
CLZ
,t
OELZ
, and t
OEHZ
are specified with AC test conditions shown in part (b) of AC Test Loads. Transition is measured ± 200 mV from steady-state voltage.
14. At any given voltage and temperature, t
OEHZ
is less than t
OELZ
and t
CHZ
is less than t
CLZ
to eliminate bus contention between SRAMs when sharing the same
data bus. These specifications do not imply a bus contention condition, but reflect parameters guaranteed over worst case user conditions. Device is designed
to achieve High-Z prior to Low-Z under the same system conditions.
15. This parameter is sampled and not 100% tested.
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