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
VOH1 Output HIGH Voltage IOH = −2.0 mA 1.7 V
VOH2 Output HIGH Voltage IOH = −100 µA2.1 V
VOL1 Output LOW Voltage IOL = 2.0 mA 0.7 V
VOL2 Output LOW Voltage IOL = 100 µA0.2V
VIH Input HIGH Voltage 1.7 VDD + 0.3 V
VIL Input LOW Voltage –0.3 0.7 V
IXInput and Output Load Current GND ≤ VI ≤ VDDQ –5 5 µA
TAP AC Switching Characteristics Over the Operating Range [11, 12]
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 10 ns
tTDIS TDI Set-up to TCK Clock Rise 10 ns
tCS Capture Set-up to TCK Rise 10 ns
Hold Times
tTMSH TMS Hold after TCK Clock Rise 10 ns
tTDIH TDI Hold after Clock Rise 10 ns
tCH 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 TCH 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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