Cypress CY7C1462AV33 manual TAP Timing, Parameter Description Min Max Unit Clock, Output Times

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CY7C1460AV33

CY7C1462AV33

CY7C1464AV33

When this scan cell, called the “extest output bus tri-state,” is latched into the preload register during the “Update-DR” state in the TAP controller, it will directly control the state of the output (Q-bus) pins, when the EXTEST is entered as the current instruction. When HIGH, it will enable the output buffers to drive the output bus. When LOW, this bit will place the output bus into a High-Z condition.

This bit can be set by entering the SAMPLE/PRELOAD or EXTEST command, and then shifting the desired bit into that cell, during the “Shift-DR” state. During “Update-DR,” the value

loaded into that shift-register cell will latch into the preload register. When the EXTEST instruction is entered, this bit will directly control the output Q-bus pins. Note that this bit is preset HIGH to enable the output when the device is powered-up, and also when the TAP controller is in the “Test-Logic-Reset” state.

Reserved

These instructions are not implemented but are reserved for future use. Do not use these instructions.

TAP Timing

12

Test Clock

(TCK)tTH

tTMSS tTMSH

Test Mode Select (TMS)

tTDIS tTDIH

Test Data-In (TDI)

3

4

5

6

tTL tCYC

tTDOV

tTDOX

 

Test Data-Out

 

 

 

 

(TDO)

 

 

 

 

DON’T CARE

UNDEFINED

 

 

TAP AC Switching Characteristics Over the Operating Range[9, 10]

 

 

 

Parameter

Description

Min.

Max.

Unit

Clock

 

 

 

 

tTCYC

TCK Clock Cycle Time

50

 

ns

tTF

TCK Clock Frequency

 

20

MHz

tTH

TCK Clock HIGH time

20

 

ns

tTL

TCK Clock LOW time

20

 

ns

Output Times

 

 

 

tTDOV

TCK Clock LOW to TDO Valid

 

10

ns

tTDOX

TCK Clock LOW to TDO Invalid

0

 

ns

Set-up Times

 

 

 

tTMSS

TMS Set-up to TCK Clock Rise

5

 

ns

tTDIS

TDI Set-up to TCK Clock Rise

5

 

ns

tCS

Capture Set-up to TCK Rise

5

 

ns

Hold Times

 

 

 

 

tTMSH

TMS Hold after TCK Clock Rise

5

 

ns

tTDIH

TDI Hold after Clock Rise

5

 

ns

tCH

Capture Hold after Clock Rise

5

 

ns

Notes:

9.tCS and tCH refer to the set-up and hold time requirements of latching data from the boundary scan register.

10. Test conditions are specified using the load in TAP AC test Conditions. tR/tF = 1 ns.

Document #: 38-05353 Rev. *D

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Contents Features Logic Block Diagram-CY7C1460AV33 1M xFunctional Description Cypress Semiconductor CorporationLogic Block Diagram-CY7C1462AV33 2M x Logic Block Diagram-CY7C1464AV33 512K xSelection Guide 250 MHz 200 MHz 167 MHz UnitPin Configurations Pin Tqfp Pinout 2M ×CY7C1462AV33 2M × Pin Definitions Pin Name Type Pin DescriptionPower supply inputs to the core of the device Power supply for the I/O circuitryClock input to the Jtag circuitry Single Read Accesses Burst Read AccessesSingle Write Accesses Burst Write AccessesInterleaved Burst Address Table Mode = Floating or VDD Linear Burst Address Table Mode = GNDZZ Mode Electrical Characteristics Partial Write Cycle Description 1, 2, 3 StallFunction CY7C1460AV33 Function CY7C1462AV33 2,8TAP Controller Block Diagram TAP Controller State Diagram Disabling the Jtag FeatureTest Access Port TAP Performing a TAP ResetBypass Register TAP Instruction SetTAP Timing Parameter Description Min Max Unit ClockOutput Times Set-up TimesTAP DC Electrical Characteristics And Operating Conditions 3V TAP AC Test Conditions5V TAP AC Test Conditions Identification Register DefinitionsScan Register Sizes Identification CodesRegister Name Bit Size ×36 Bit Size ×18 Bit Size ×72 Instruction Code DescriptionBall Fbga Boundary Scan Order CY7C1460AV33 1M x 36, CY7C1462AV33 2M x Bit# Ball IDBit# Ball ID Ball BGA Boundary Scan Order 13 CY7C14604V33 512K x Bit# Ball IDElectrical Characteristics Over the Operating Range15 Maximum RatingsOperating Range Ambient RangeCapacitance17 Thermal Resistance17AC Test Loads and Waveforms Switching Characteristics Over the Operating Range 22 250 200 167 Parameter Description Unit Min MaxSwitching Waveforms Read/Write/Timing24, 25ZZ Mode Timing28 NOP,STALL and Deselect Cycles24, 25Ordering 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 ECN No Issue Date Orig. Description of Change Document History

CY7C1462AV33, CY7C1464AV33, CY7C1460AV33 specifications

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