CY7C0852V CYPRESS [Cypress Semiconductor], CY7C0852V Datasheet - Page 22

• Manufacturer Part Number: CY7C0852V
• Description: FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-06070 Rev. *D
Switching Waveforms
Notes:
34. CE
35. Address in output mode. Host must not be driving address bus after t
36. Address in input mode. Host can drive address bus after t
37. An * is the internal value of the address counter (or the mask register depending on the CNT/MSK level) being Read out on the address lines.
Readback State of Address Counter or Mask Register
EXTERNAL
ADDRESS
DATA
INTERNAL
ADDRESS
CNTEN
A
0
ADS
0
–A
CLK
= OE = B0 – B3 = LOW; CE
OUT
16
t
t
SCN
SAD
EXTERNAL
ADDRESS
t
SA
LOAD
Q
A
x-2
t
t
n
HAD
HCN
t
HA
t
CH2
t
CYC2
t
CL2
READBACK
1
(continued)
COUNTER
INTERNAL
= R/W = CNTRST = MRST = HIGH.
ADDRESS
Q
x-1
A
n
t
CD2
INCREMENT
CKHZ
Q
n
t
t
CA2
.
CKHZ
or t
CKLZ
[34, 35, 36, 37]
CM2
in next clock cycle.
A
n+1
A
n*
t
CKLZ
A
n+2
Q
n+1
CY7C0850V/CY7C0851V
CY7C0852V/CY7C0853V
A
Q
n+3
n+2
Q
A
n+3
Page 22 of 29
n+4