Cypress CY7C1446AV33, CY7C1440AV33, CY7C1442AV33 manual ZZ Mode Timing30, DON’T Care

Page 24

CY7C1440AV33

CY7C1442AV33

CY7C1446AV33

Switching Waveforms (continued)

ZZMode Timing[30, 31]

CLK

tZZ

ZZ

tZZI

ISUPPLY

I DDZZ

ALL INPUTS (except ZZ)

Outputs (Q)

High-Z

DON’T CARE

tZZREC

tRZZI

DESELECT or READ Only

Notes:

30.Device must be deselected when entering ZZ mode. See Cycle Descriptions table for all possible signal conditions to deselect the device.

31.DQs are in high-Z when exiting ZZ sleep mode.

Document #: 38-05383 Rev. *E

Page 24 of 31

[+] Feedback

Image 24

Contents Features Functional Description1Selection Guide 250 MHz 200 MHz 167 MHz UnitLogic Block Diagram CY7C1440AV33 1M x Logic Block Diagram CY7C1442AV33 2M xCY7C1440AV33 Pin Configurations Pin Tqfp Pinout CY7C1442AV33 2M xCY7C1442AV33 2M x Pin Definitions Name DescriptionByte Write Select Inputs, active LOW. Qualified with Power supply inputs to the core of the device Power supply for the I/O circuitryGround for the core of the device Ground for the I/O circuitryFunctional Overview Interleaved Burst Address Table Mode = Floating or VDD Linear Burst Address Table Mode = GNDZZ Mode Electrical Characteristics Truth Table for Read/Write4,8,9 Truth Table for Read/Write4, 8Write Cycle, Suspend Burst Function CY7C1440AV33TAP Controller State Diagram TAP Controller Block DiagramIeee 1149.1 Serial Boundary Scan Jtag Performing a TAP Reset TAP RegistersTAP Instruction Set TAP Timing BypassTAP AC Switching Characteristics Over the operating Range10 3V TAP AC Test Conditions5V TAP AC Test Conditions 5V TAP AC Output Load EquivalentTAP DC Electrical Characteristics And Operating Conditions Identification Register DefinitionsScan Register Sizes Identification CodesBall Fbga Boundary Scan Order 14,15 SAMPLE/PRELOADBypass CY7C1440AV33 1M x 36, CY7C1442AV33 2M x Bit # Ball IDBall Fbga Boundary Scan Order 14 CY7C1446AV33 512K x Bit # Ball IDElectrical Characteristics Over the Operating Range17 Maximum RatingsOperating Range Ambient RangeCapacitance19 Thermal ResistanceAC Test Loads and Waveforms Switching Characteristics Over the Operating Range 24 250 200 167 Parameter Description Unit MinMin Max Set-up Times Switching Waveforms Read Cycle Timing26Write Cycle Timing26 Read/Write Cycle Timing26, 28 CLZZZ Mode Timing30 DON’T CareOrdering Information 250 Package Diagrams Pin Tqfp 14 x 20 x 1.4 mmBall Fbga 15 x 17 x 1.4 mm Ball Fbga 14 x 22 x 1.76 mm Issue Date Orig. Description of Change Document HistoryDocument Number AC Switching Characteristics table Updated the Ordering Information table473650 VKN