Cypress CY7C1344H Read/Write Timing16, 18, Adsp Adsc, Address, Burst Read, DON’T Care Undefined

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CY7C1344H

Timing Diagrams (continued)

Read/Write Timing[16, 18, 19]

tCYC

CLK

tt

CH CL

tADS tADH

ADSP

ADSC

tAS tAH

ADDRESS

A1

A2

A3

 

A4

 

 

 

 

 

 

tWES

tWEH

 

 

BWE, BW[A:D]

 

 

 

 

 

 

 

 

 

tCES tCEH

 

 

 

 

 

CE

 

 

 

 

 

 

 

ADV

 

 

 

 

 

 

 

OE

 

 

 

 

 

 

 

 

 

 

 

tDS

tDH

 

 

 

 

 

 

 

tOELZ

 

 

Data In (D)

 

High-Z

t

D(A3)

 

 

 

 

 

OEHZ

 

tCDV

 

 

 

 

 

 

 

 

 

Data Out (Q)

 

Q(A1)

Q(A2)

 

Q(A4)

Q(A4+1)

Q(A4+2) Q(A4+3)

 

 

Back-to-Back READs

Single WRITE

BURST READ

 

 

 

 

 

DON’T CARE

UNDEFINED

 

Notes:

18.The data bus (Q) remains in High-Z following a Write cycle unless an ADSP, ADSC, or ADV cycle is performed.

19.GW is HIGH.

A5 A6

D(A5) D(A6)

Back-to-Back WRITEs

Document #: 001-00211 Rev. *B

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Contents Features Logic Block Diagram Functional Description1Cypress Semiconductor Corporation Pin Configurations Selection Guide15CY7C1344H 133 MHz 100 MHz UnitPin Definitions Interleaved Burst Address Table Mode = Floating or VDD Linear Burst Address Table Mode = GNDFunctional Overview ZZ Mode Electrical Characteristics Parameter Description Test Conditions Min Max UnitAddress Cycle Description Used Adsp Adsc ADV Write CLKTruth Table for Read/Write2 FunctionBWE BW D BW C BW B BW a Maximum Ratings Operating RangeAmbient Range Description Test Conditions Min Max UnitCapacitance9 Thermal Resistance9AC Test Loads and Waveforms Switching Characteristics Over the Operating Range 10 Timing Diagrams Read Cycle Timing16CLK AdscWrite Cycle Timing16 Read/Write Timing16, 18 Adsp AdscAddress Burst ReadZZ Mode Timing 20 DON’T CarePackage Diagram Ordering InformationPin Tqfp 14 x 20 x 1.4 mm Issue Date Orig. Description of Change Document HistoryREV ECN no PCI