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Cypress CY7C1418AV18, CY7C1416AV18 Switching Waveforms, Nop, NOP Write Read, Care Undefined

Models: CY7C1418AV18 CY7C1420AV18 CY7C1427AV18 CY7C1416AV18

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CY7C1416AV18, CY7C1427AV18

CY7C1418AV18, CY7C1420AV18

Switching Waveforms

Figure 5. Read/Write/Deselect Sequence [26, 27, 28]

NOP		READ	READ
1		2	3
K
tKH	tKL	tCYC	tKHKH
K
LD	tSC
	tSC	tHC

R/W

NOP	NOP	WRITE	WRITE			READ
4	5	6	7			8	9		10

A

A0

A1

tSA tHA

DQ

tKHCH tCLZ tCO

C

A2

A3

tHD

tSD

Q00 Q01 Q10	Q11
tCQDOH
tDOH	tCHZ
tCQD

A4

tHD

tSD

D21

D30

D31

Q41

t KHCH

C#

tKH tKL				tCYC		tKHKH

CQ

tCQOH

CQ#

tCQOH

tCCQO

tCCQO

CARE

UNDEFINED

Notes

26.Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, that is, A0 + 1.

27.Outputs are disabled (High-Z) one clock cycle after a NOP.

28.In this example, if address A4 = A3, then data Q40 = D30 and Q41 = D31. Write data is forwarded immediately as read results. This note applies to the whole diagram.

Document Number: 38-05616 Rev. *F

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Cypress CY7C1418AV18, CY7C1416AV18, CY7C1420AV18, CY7C1427AV18 Switching Waveforms, Nop, NOP Write Read, Care Undefined

Contents

Configurations FeaturesFunctional Description Selection Guide Logic Block Diagram CY7C1427AV18 Logic Block Diagram CY7C1416AV18Doff CLK Logic Block Diagram CY7C1420AV18 Logic Block Diagram CY7C1418AV18BWS Ball Fbga 15 x 17 x 1.4 mm Pinout Pin ConfigurationCY7C1416AV18 4M x CY7C1427AV18 4M x CY7C1420AV18 1M x CY7C1418AV18 2M x Pin Name Pin Description Pin DefinitionsSynchronous Read or Write Input. When Power Supply Inputs for the Outputs of the Device Power Supply Inputs to the Core of the DeviceReferenced with Respect to TDO for Jtag Functional Overview Depth Expansion Application ExampleProgrammable Impedance Echo Clocks BWS0 BWS1 Write Cycle DescriptionsNWS0 NWS1 BWS0 BWS1 BWS2 BWS3 BWS0 Ieee 1149.1 Serial Boundary Scan Jtag Idcode TAP Controller State Diagram TAP Electrical Characteristics TAP Controller Block DiagramTDI TCK TAP Timing and Test Conditions TAP AC Switching Characteristics Scan Register Sizes Identification Register DefinitionsInstruction Codes Register Name Bit Size Bit # Bump ID Boundary Scan Order Power Up Sequence Power Up Sequence in DDR-II SramDLL Constraints DC Electrical Characteristics Electrical CharacteristicsMaximum Ratings AC Electrical Characteristics Thermal Resistance CapacitanceParameter Description Test Conditions Max Unit Parameter Description Test Conditions Fbga Unit Switching Characteristics Clock Rise or K/K in single Clock mode to Data Valid NOP Switching WaveformsRead NOP Write Read Ordering Information 250 167 Ball Fbga 15 x 17 x 1.4 mm Package Diagram ECN Document HistoryOirg. Submission Date Description Of Change Worldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationVKN/AESA Pyrs