Read/Write Cycle Timing 26, 28 | Cypress CY7C1387D, CY7C1386F

CY7C1386D, CY7C1386F

CY7C1387D, CY7C1387F

Switching Waveforms (continued)

Read/Write Cycle Timing [26, 28, 29]

tCYC

CLK

tCH tCL

tADS tADH

ADSP

ADSC

tAS tAH

ADDRESS A1

A2

A3

A4

A5

A6

BWE, BW			tWES	tWEH
BWE, BW	X
	tCES	tCEH
CE
ADV
OE
		tCO	tDS	tDH
Data In (D)	High-Z		D(A3)
		t	tOEHZ
		CLZ
Data Out (Q)	High-Z	Q(A1)	Q(A2)
	High-Z	Q(A1)	Q(A2)
	Back-to-Back READs		Single WRITE
			DON’T CARE

tOELZ

D(A5) D(A6)

Q(A4)	Q(A4+3)
BURST READ	Back-to-Back
	WRITEs

UNDEFINED

Notes

28.The data bus (Q) remains in high-Z following a Write cycle, unless a new read access is initiated by ADSP or ADSC.

29.GW is HIGH.

Document Number: 38-05545 Rev. *E

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Cypress CY7C1387D, CY7C1386F, CY7C1387F, CY7C1386D manual Read/Write Cycle Timing 26, 28

Contents

Cypress Semiconductor Corporation FeaturesSelection Guide 250 MHz 200 MHz 167 MHz Unit Logic Block Diagram CY7C1387D/CY7C1387F 3 1M x Logic Block Diagram CY7C1386D/CY7C1386F 3 512K x CY7C1387D 1M x Pin Configurations Pin Tqfp Pinout 3 Chip EnablesCY7C1386D 512K X Pin Configurations Ball BGA Pinout 1 Chip Enable Pin Configurations Ball Fbga Pinout 3 Chip Enable Byte write select inputs, active LOW. Qualified with Power supply inputs to the core of the devicePin Definitions Name Description Functional Overview ZZ Mode Electrical Characteristics Interleaved Burst Address Table Mode = Floating or VDDLinear Burst Address Table Mode = GND Operation Add. Used Function CY7C1387D/CY7C1387F Truth Table for Read/Write 6Function CY7C1386D/CY7C1386F TAP Controller Block Diagram TAP Controller State Diagram TAP Instruction Set Bypass Register TAP Timing TAP AC Switching Characteristics GND VIN Vddq 3V TAP AC Test Conditions5V TAP AC Test Conditions 3V TAP AC Output Load Equivalent Register Name Bit Size Identification Register DefinitionsScan Register Sizes Identification Codes Internal Ball BGA Boundary Scan Order 14Bit # Ball ID G10 F10 Internal A10 B10M11 M10 Range Ambient Electrical CharacteristicsMaximum Ratings Operating Range AC Test Loads and Waveforms CapacitanceThermal Resistance Description 250 200 167 Unit Parameter Min Switching Characteristics Over the Operating Range 20 Read Cycle Timing Switching Waveforms Adsc Write Cycle Timing 26 Read/Write Cycle Timing 26, 28 ZZ Mode Timing 30 Ordering Information CY7C1386D, CY7C1386F CY7C1387D, CY7C1387F Pin Thin Plastic Quad Flat pack 14 x 20 x 1.4 mm Package Diagrams Ball BGA 14 x 22 x 2.4 mm Ball Fbga 13 x 15 x 1.4 mm Document Number Issue Date Orig. Description of ChangeDocument History