Cypress CY7C0850AV, CY7C0852AV, CY7C0853AV, CY7C0851AV Read-to-Readback-to-Read-to-Read R/W = High

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					CY7C0850AV, CY7C0851AV
					CY7C0852AV, CY7C0853AV
Switching Waveforms (continued)
		Figure 18. Read-to-Readback-to-Read-to-Read (R/W = HIGH)
		tCYC2
	tCL2	tCH2
CLK
	tSAD	tHAD
ADS
CNTEN
	tSCN tHCN				tSA	tHA
						tHA
ADDRESS						An+1
COUNTER	An		An+1		An+2
INTERNAL	An		An+1		An+2		An+3		An+4
ADDRESS
OE
DATAOUT				Q				Qn+2	Q	n+3
				n+1				Qn+2		n+3
		READ	NO OPERATION		READ		READ		READ
	INCREMENT		READBACK	INCREMENT	INCREMENT			INCREMENT

Document #: 38-06070 Rev. *H

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Contents 176TQFP 172FBGA Functional DescriptionProduct Selection Guide Density Mbit 32K x 64K x 128K x Cypress Semiconductor Corporation 198 Champion CourtRAM Array Logic Block DiagramTrue Mirror RegPin Configurations Ball BGA Top ViewCY7C0853AV CY7C0850AV CY7C0851AV CY7C0852AV Pin Definitions Mailbox Interrupts Master ResetOperation Description Address Counter and Mask Register Operations Retransmit Mask Reset OperationCounter Interrupt Mask Load OperationCnten ADS Cntrst Mrst CLKProgrammable Counter-Mask Register Operation 1 Performing a TAP Reset Ieee 1149.1 Serial Boundary Scan JtagOperating Range Electrical CharacteristicsMaximum Ratings CapacitanceSwitching Characteristics Normal Load Load Three-state Delay LoadPort to Port Delays Master Reset TimingJtag Timing Parameter Description 167/133/100 Unit MinSwitching Waveforms Master ResetBank Select Read 26 Read-to-Write-to-Read OE Controlled 25, 28, 30 Write with Address Counter Advance Disabled-to-Write-to-Read-to-Write-to-Read Read-to-Readback-to-Read-to-Read R/W = High Counter Reset 32 Readback State of Address Counter or Mask Register35, 36, 37 LeftPort LPort Write to RightPort RPort Read39, 40 Counter Interrupt and Retransmit 34, 42, 43, 44 CLK 128K × 36 4M 3.3V Synchronous CY7C0852AV Dual-Port Sram Ordering Information256K × 36 9M 3.3V Synchronous CY7C0853AV Dual-Port Sram 64K × 36 2M 3.3V Synchronous CY7C0851AV Dual-Port SramPackage Diagrams Ball Fbga 15 x 15 x 1.25 mmPin Thin Quad Flat Pack 24 × 24 × 1.4 mm Document History Submis Orig. Description of Change Sion DateWorldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationUSB