3v tap ac test conditions – Cypress CY7C1360C User Manual
Page 14
CY7C1360C
CY7C1362C
Document #: 38-05540 Rev. *H
Page 14 of 31
3.3V TAP AC Test Conditions
Input pulse levels ................................................ V
SS
to 3.3V
Input rise and fall times ................................................... 1 ns
Input timing reference levels ...........................................1.5V
Output reference levels...................................................1.5V
Test load termination supply voltage ...............................1.5V
3.3V TAP AC Output Load Equivalent
2.5V TAP AC Test Conditions
Input pulse levels................................................. V
SS
to 2.5V
Input rise and fall time .....................................................1 ns
Input timing reference levels......................................... 1.25V
Output reference levels ................................................ 1.25V
Test load termination supply voltage ............................ 1.25V
2.5V TAP AC Output Load Equivalent
TAP AC Switching Characteristics
Over the Operating Range
[10, 11]
Parameter
Description
Min.
Max.
Unit
Clock
t
TCYC
TCK Clock Cycle Time
50
ns
t
TF
TCK Clock Frequency
20
MHz
t
TH
TCK Clock HIGH time
20
ns
t
TL
TCK Clock LOW time
20
ns
Output Times
t
TDOV
TCK Clock LOW to TDO Valid
10
ns
t
TDOX
TCK Clock LOW to TDO Invalid
0
ns
Set-up Times
t
TMSS
TMS Set-up to TCK Clock Rise
5
ns
t
TDIS
TDI Set-up to TCK Clock Rise
5
ns
t
CS
Capture Set-up to TCK Rise
5
ns
Hold Times
t
TMSH
TMS Hold after TCK Clock Rise
5
ns
t
TDIH
TDI Hold after Clock Rise
5
ns
t
CH
Capture Hold after Clock Rise
5
ns
TDO
1.5V
20pF
Z = 50
Ω
O
50
Ω
TDO
1.25V
20pF
Z = 50
Ω
O
50
Ω
TAP DC Electrical Characteristics And Operating Conditions
(0°C < T
A
< +70°C; V
DD
= 3.3V ±0.165V unless otherwise noted)
[12]
Parameter
Description
Conditions
Min.
Max.
Unit
V
OH1
Output HIGH Voltage
I
OH
= –4.0 mA
V
DDQ
= 3.3V
2.4
V
I
OH
= –1.0 mA
V
DDQ
= 2.5V
2.0
V
V
OH2
Output HIGH Voltage
I
OH
= –100 µA
V
DDQ
= 3.3V
2.9
V
V
DDQ
= 2.5V
2.1
V
V
OL1
Output LOW Voltage
I
OL
= 8.0 mA
V
DDQ
= 3.3V
0.4
V
I
OL
= 8.0 mA
V
DDQ
= 2.5V
0.4
V
Notes:
10. t
CS
and t
CH
refer to the set-up and hold time requirements of latching data from the boundary scan register.
11. Test conditions are specified using the load in TAP AC test Conditions. t
R
/t
F
= 1 ns.
12. All voltages referenced to V
SS
(GND).