CY7C008V-20AC Cypress Semiconductor Corp, CY7C008V-20AC Datasheet - Page 9
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CY7C008V-20AC
Manufacturer Part Number
CY7C008V-20AC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheets
1.CY7C008V-20AC.pdf
(18 pages)
2.CY7C008V-20AC.pdf
(18 pages)
3.CY7C008V-20AC.pdf
(18 pages)
4.CY7C008V-20AC.pdf
(18 pages)
Specifications of CY7C008V-20AC
Density
512Kb
Access Time (max)
20ns
Operating Supply Voltage (typ)
5V
Package Type
TQFP
Operating Temp Range
0C to 70C
Supply Current
265mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
100
Word Size
8b
Lead Free Status / Rohs Status
Not Compliant
Document #: 38-06044 Rev. *C
Switching Waveforms
Write Cycle No. 2: CE Controlled Timing
Write Cycle No. 1: R/W Controlled Timing
Notes:
24. R/W must be HIGH during all address transitions.
25. A write occurs during the overlap (t
26. t
27. If OE is LOW during a R/W controlled write cycle, the write pulse width must be the larger of t
28. To access RAM, CE = V
29. Transition is measured ±500 mV from steady state with a 5-pF load (including scope and jig). This parameter is sampled and not 100% tested.
30. During this period, the I/O pins are in the output state, and input signals must not be applied.
31. If the CE or SEM LOW transition occurs simultaneously with or after the R/W LOW transition, the outputs remain in the high-impedance state.
CE
DATA OUT
ADDRESS
ADDRESS
CE
DATA IN
DATA IN
to be placed on the bus for the required t
as short as the specified t
HA
[28]
[28]
is measured from the earlier of CE or R/W or (SEM or R/W) going HIGH at the end of write cycle.
R/W
R/W
OE
IL
PWE
, SEM = V
.
t
t
(continued)
SA
SA
NOTE 30
SCE
IH
.
or t
SD
PWE
. If OE is HIGH during an R/W controlled write cycle, this requirement does not apply and the write pulse can be
) of a LOW CE or SEM.
t
[24, 25, 26, 31]
HZWE
[24, 25, 26, 27]
[29]
t
t
AW
AW
t
t
WC
WC
t
t
SCE
PWE
[27]
t
t
SD
SD
PWE
or (t
HZWE
t
t
HA
HA
t
t
+ t
HD
HD
SD
t
LZWE
) to allow the I/O drivers to turn off and data
CY7C008V/009V
CY7C018V/019V
t
HZOE
[29]
NOTE 30
Page 9 of 18