CY7C1470V25_12 CYPRESS [Cypress Semiconductor], CY7C1470V25_12 Datasheet - Page 19

• Manufacturer Part Number: CY7C1470V25_12
• Manufacturer: CYPRESS [Cypress Semiconductor]

TAP AC Switching Characteristics
Over the Operating Range
2.5 V TAP AC Test Conditions
Input pulse levels ...............................................V
Input rise and fall time ....................................................1 ns
Input timing reference levels ....................................... 1.25 V
Output reference levels .............................................. 1.25 V
Test load termination supply voltage .......................... 1.25 V
2.5 V TAP AC Output Load Equivalent
Document Number: 38-05290 Rev. *O
Notes
Parameter
Clock
t
t
t
t
Output Times
t
t
Set-up Times
t
t
t
Hold Times
t
t
t
TCYC
TF
TH
TL
TDOV
TDOX
TMSS
TDIS
CS
TMSH
TDIH
CH
16. t
17. Test conditions are specified using the load in TAP AC Test Conditions. t
CS
and t
CH
[16, 17]
TDO
refer to the set-up and hold time requirements of latching data from the boundary scan register.
TCK clock cycle time
TCK clock frequency
TCK clock HIGH time
TCK clock LOW time
TCK clock LOW to TDO valid
TCK clock LOW to TDO invalid
TMS set-up to TCK clock rise
TDI set-up to TCK clock rise
Capture set-up to TCK rise
TMS hold after TCK clock rise
TDI hold after clock rise
Capture hold after clock rise
Z = 50
O
1.25V
20pF
50
SS
Description
to 2.5 V
R
/t
F
= 1 ns.
1.8 V TAP AC Test Conditions
Input pulse levels ................................ 0.2 V to V
Input rise and fall time ....................................................1 ns
Input timing reference levels ......................................... 0.9 V
Output reference levels ................................................ 0.9 V
Test load termination supply voltage ............................ 0.9 V
1.8 V TAP AC Output Load Equivalent
TDO
Z = 50
O
Min
50
20
20
–
–
0
5
5
5
5
5
5
CY7C1470V25
CY7C1472V25
CY7C1474V25
0.9V
20pF
50
Max
20
10
–
–
–
–
–
–
–
–
–
–
DDQ
Page 19 of 38
– 0.2 V
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns