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CY7C1302DV25
Document #: 38-05625 Rev. *A Page 9 of 18
TAP Controller Block Diagram
TAP Electrical Characteristics
Over the Operating Range
[10, 13, 15]
Parameter Description Test Conditions Min. Max. Unit
V
OH1
Output HIGH Voltage I
OH
= −2.0 mA 1.7 V
V
OH2
Output HIGH Voltage I
OH
= −100 µA2.1 V
V
OL1
Output LOW Voltage I
OL
= 2.0 mA 0.7 V
V
OL2
Output LOW Voltage I
OL
= 100 µA0.2V
V
IH
Input HIGH Voltage 1.7 V
DD
+ 0.3 V
V
IL
Input LOW Voltage –0.3 0.7 V
I
X
Input and Output Load Current GND ≤ V
I
≤ V
DDQ
–5 5 µA
TAP AC Switching Characteristics Over the Operating Range
[11, 12]
Parameter Description Min. Max. Unit
t
TCYC
TCK Clock Cycle Time 50 ns
t
TF
TCK Clock Frequency 20 MHz
t
TH
TCK Clock HIGH 20 ns
t
TL
TCK Clock LOW 20 ns
Set-up Times
t
TMSS
TMS Set-up to TCK Clock Rise 10 ns
t
TDIS
TDI Set-up to TCK Clock Rise 10 ns
t
CS
Capture Set-up to TCK Rise 10 ns
Hold Times
t
TMSH
TMS Hold after TCK Clock Rise 10 ns
t
TDIH
TDI Hold after Clock Rise 10 ns
t
CH
Capture Hold after Clock Rise 10 ns
Notes:
10.These characteristics pertain to the TAP inputs (TMS, TCK, TDI and TDO). Parallel load levels are specified in the Electrical Characteristics table.
11. T
CS
and T
CH
refer to the set-up and hold time requirements of latching data from the boundary scan register.
12.Test conditions are specified using the load in TAP AC test conditions. Tr/Tf = 1 ns.
0
012..
29
3031
Boundary Scan Register
Identification Register
012..
.
.106
012
Instruction Register
Bypass Register
Selection
Circuitry
Selection
Circuitry
TAP Controller
TDI
TDO
TCK
TMS
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