CYD18S72V CYPRESS [Cypress Semiconductor], CYD18S72V Datasheet - Page 17

• Manufacturer Part Number: CYD18S72V
• Description: FLEx72 3.3V 64K/128K/256K x 72 Synchronous Dual-Port RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-06069 Rev. *D
Switching Waveforms
ADDRESS
Read-to-Write-to-Read (OE Controlled)
Read with Address Counter Advance
DATA
ADDRESS
DATA
CNTEN
DATA
ADS
CLK
OUT
CLK
R/W
OUT
OE
CE
IN
t
t
t
SAD
SCN
SA
t
t
t
SW
SC
SA
Q
A
x–1
n
A
t
EXTERNAL
ADDRESS
CH2
n
READ
t
CH2
t
CYC2
t
t
t
HAD
HCN
HA
t
CYC2
t
(continued)
t
t
HW
HC
HA
t
CL2
t
CL2
Q
x
A
t
READ
[36]
DC
n+1
[31, 34, 36, 37]
t
CD2
t
CD2
READ WITH COUNTER
PRELIMINARY
Q
t
OHZ
n
t
SW
t
Q
SD
D
n
A
n+2
n+2
t
HW
t
HD
t
t
SAD
SCN
Q
WRITE
A
D
n+1
COUNTER HOLD
n+3
n+3
t
t
HCN
HAD
A
n+4
Q
READ WITH COUNTER
n+2
READ
CYD04S72V
CYD09S72V
CYD18S72V
A
n+5
Page 17 of 26
t
CD2
Q
Q
n+4
n+3