Cypress CY7C1473BV25, CY7C1471BV25 TAP AC Switching Characteristics, 5V TAP AC Test Conditions

CY7C1471BV25

CY7C1473BV25, CY7C1475BV25

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
Setup Times
tTMSS	TMS Setup to TCK Clock Rise	5		ns
tTDIS	TDI Setup to TCK Clock Rise	5		ns
tCS	Capture Setup 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

2.5V TAP AC Test Conditions			Figure 6. 2.5V TAP AC Output Load Equivalent
Input pulse levels			VSS to 2.5V				1.25V
Input rise and fall time			1 ns
Input timing reference levels			1.25V						50Ω
Output reference levels			1.25V	TDO
Test load termination supply voltage			1.25V
					ZO= 50Ω				20pF
TAP DC Electrical Characteristics And Operating Conditions
(0°C < T < +70°C; V	DD	= 2.375 to 2.625 unless otherwise noted) [11]
A
Parameter		Description	Test Conditions			Min		Max		Unit
VOH1	Output HIGH Voltage		IOH = –1.0 mA, VDDQ = 2.5V			2.0				V
VOH2	Output HIGH Voltage		IOH = –100 µA, VDDQ = 2.5V			2.1				V
VOL1	Output LOW Voltage		IOL = 1.0 mA, VDDQ = 2.5V				0.4			V
VOL2	Output LOW Voltage		IOL = 100 µA, VDDQ = 2.5V				0.2			V
VIH	Input HIGH Voltage		VDDQ = 2.5V			1.7	VDD + 0.3			V
VIL	Input LOW Voltage		VDDQ = 2.5V			–0.3	0.7			V
IX	Input Load Current		GND < VIN < VDDQ			–5	5			µA

Notes

9.tCS and tCH refer to the setup 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.

11.All voltages refer to VSS (GND).

Document #: 001-15013 Rev. *E Page 16 of 30

[+] Feedback