Cypress manual Logic Block Diagram CY7C1292DV18, Logic Block Diagram CY7C1294DV18, Doff

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CY7C1292DV18

CY7C1294DV18

Logic Block Diagram (CY7C1292DV18)

D[17:0]

Address

A(17:0)

CLK

Gen.

DOFF

VREF

WPS

Control

BWS

Logic

[1:0]

Write

Address

Reg

Decode

256K x

Decode

Add.Write

18Array

Add.Read

Logic

Control

Read Data Reg.

Reg.

18A(17:0)

RPS

CCQ CQ

Q[17:0]

Logic Block Diagram (CY7C1294DV18)

D[35:0]

Address

A(16:0)

CLK

Gen.

DOFF

Write Add. Decode

Write	Write
Reg	Reg
128K x 36 Array	128K x 36 Array

Read Data Reg.

Read Add. Decode

Address Register

Control

Logic

17A(16:0)

RPS

C			CQ
C			CQ

VREF


WPS		Control
WPS		Control
BWS		Logic
BWS	[3:0]	Logic

72		36

						36

			Reg.		Reg.

	36




			Reg.
			Reg.

				36
				36

36Q[35:0]

Document #: 001-00350 Rev. *A

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Contents Functional Description FeaturesConfigurations Selection GuideDoff Logic Block Diagram CY7C1292DV18Logic Block Diagram CY7C1294DV18 Q34 Pin Configurations Ball Fbga 13 x 15 x 1.4 mm PinoutTMS TDI Pin Definitions Functional Overview DLL RPS WPS Application Example1Write Cycle Descriptions CY7C1292DV18 2 BWSWrite Cycle Descriptions CY7C1294DV18 2 Ieee 1149.1 Serial Boundary Scan Jtag Idcode TAP Controller State Diagram9 EXIT2-IR UPDATE-DR UPDATE-IRTAP Controller Block Diagram Parameter Description Test Conditions Min Max UnitParameter Description Min Max Unit TAP AC Switching Characteristics Over the Operating Range13TAP Timing and Test Conditions13 Hold TimesInstruction Codes Identification Register DefinitionsScan Register Sizes Register Name Bit SizeBoundary Scan Order Bit # Bump IDPower-Up Sequence Power-Up Sequence in QDR-II SramPower-up Waveforms DLL ConstraintsOperating Range Electrical Characteristics Over the Operating Range12Maximum Ratings CapacitanceParameter Description Test Conditions Fbga Unit Thermal Resistance21AC Test Loads and Waveforms Test conditions follow standard test 28.51Output Times Switching Characteristics Over the Operating Range22Set-up Times DLL TimingWrite Read Switching Waveforms27, 28Read/Write/Deselect Sequence Write NOPOrdering Information Package Diagram PIN 1 CornerREV ECN No Issue Date Orig. Description of ChangeDocument History SYT