Cypress CY7C1292DV18 TAP AC Switching Characteristics Over the Operating Range13, Hold Times

CY7C1292DV18

CY7C1294DV18

TAP AC Switching Characteristics Over the Operating Range[13, 14]

Parameter	Description	Min.	Max.	Unit
tTCYC	TCK Clock Cycle Time	50		ns
tTF	TCK Clock Frequency		20	MHz
tTH	TCK Clock HIGH	20		ns
tTL	TCK Clock LOW	20		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
Output Times
tTDOV	TCK Clock LOW to TDO Valid		10	ns
tTDOX	TCK Clock LOW to TDO Invalid	0		ns

TAP Timing and Test Conditions[13]

		0.9V
			50Ω
TDO
	Z0 = 50Ω		CL = 20 pF	0V
				tTH

ALL INPUT PULSES

1.8V

0.9V

tTL

GND

(a)

Test Clock

TCK

Test Mode Select

TMS

Test Data-In

TDI

Test Data-Out

TDO

tTMSS

tTDIS

tTMSH

tTDIH

tTDOV

tTCYC

tTDOX

Notes:

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

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

Document #: 001-00350 Rev. *A Page 13 of 23

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