SIO Pipelined Sync SRAM Specification Sheet

CY7C1347G
Document #: 38-05516 Rev. *F Page 11 of 22
Switching Characteristics
Over the Operating Range
[14, 15]
Parameter Description
–250 –200 –166 –133
Unit
Min Max Min Max Min Max Min Max
t
POWER
V
DD
(Typical) to the first Access
[10]
1111ms
Clock
t
CYC
Clock Cycle Time 4.0 5.0 6.0 7.5 ns
t
CH
Clock HIGH 1.7 2.0 2.5 3.0 ns
t
CL
Clock LOW 1.7 2.0 2.5 3.0 ns
Output Times
t
CO
Data Output Valid After CLK Rise 2.6 2.8 3.5 4.0 ns
t
DOH
Data Output Hold After CLK Rise 1.0 1.0 1.5 1.5 ns
t
CLZ
Clock to Low-Z
[11, 12, 13]
0000ns
t
CHZ
Clock to High-Z
[11, 12, 13]
2.6 2.8 3.5 4.0 ns
t
OEV
OE LOW to Output Valid
2.6 2.8 3.5 4.5 ns
t
OELZ
OE LOW to Output Low-Z
[11, 12, 13]
0000ns
t
OEHZ
OE HIGH to Output High-Z
[11, 12, 13]
2.6 2.8 3.5 4.0 ns
Setup Times
t
AS
Address Setup Before CLK Rise 1.2 1.2 1.5 1.5 ns
t
ADS
ADSC, ADSP Setup Before CLK Rise
1.2 1.2 1.5 1.5 ns
t
ADVS
ADV Setup Before CLK Rise
1.2 1.2 1.5 1.5 ns
t
WES
GW, BWE, BW
X
Setup Before CLK Rise
1.2 1.2 1.5 1.5 ns
t
DS
Data Input Setup Before CLK Rise 1.2 1.2 1.5 1.5 ns
t
CES
Chip Enable Setup Before CLK Rise 1.2 1.2 1.5 1.5 ns
Hold Times
t
AH
Address Hold After CLK Rise 0.3 0.5 0.5 0.5 ns
t
ADH
ADSP, ADSC Hold After CLK Rise
0.3 0.5 0.5 0.5 ns
t
ADVH
ADV Hold After CLK Rise
0.3 0.5 0.5 0.5 ns
t
WEH
GW, BWE, BW
X
Hold After CLK Rise
0.3 0.5 0.5 0.5 ns
t
DH
Data Input Hold After CLK Rise 0.3 0.5 0.5 0.5 ns
t
CEH
Chip Enable Hold After CLK Rise 0.3 0.5 0.5 0.5 ns
Notes
10. This part has an internal voltage regulator; t
POWER
is the time that the power must be supplied above V
DD
(min) initially before a read or write operation can be initiated.
11. t
CHZ
, t
CLZ
, t
OELZ
, and t
OEHZ
are specified with AC test conditions shown in part (b) of AC Test Loads and Waveforms on page 10. Transition is measured ±200 mV
from steady-state voltage.
12. At any 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
before Low-Z under the same system conditions.
13. This parameter is sampled and not 100% tested.
14. Timing references level is 1.5V when V
DDQ
= 3.3V and is 1.25V when V
DDQ
= 2.5V on all data sheets.
15. Test conditions shown in (a) of AC Test Loads and Waveforms on page 10 unless otherwise noted.
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