CYD18S72V CYPRESS [Cypress Semiconductor], CYD18S72V Datasheet - Page 8

• 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
CNT/MSK
CNTEN
ADS
CNTRST
MRST
Bidirectional
Address
Lines
CLK
From
Address
Lines
From
Mask
Register
From
Mask
From
Counter
Figure 1. Counter, Mask, and Mirror Logic Block Diagram
17
17
Decode
Logic
17
17
Increment
+1
+2
Logic
Mirror
PRELIMINARY
Wrap
1
0
Bit 0
Load/Increment
17
1
0
1
0
Detect
Wrap
Counter/
Address
Register
Mask
Register
1
0
17
Counter
Wrap
To
Counter
[1]
17
To Readback
and Address
Decode
Address
Decode
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Page 8 of 26
Array
RAM