CY7C1292DV18CY7C1294DV18
Document #: 001-00350 Rev. *A Page 12 of 23
TAP Controller Block Diagram
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
TAP Electrical Characteristics Over the Operating Range[10, 11, 12]
Parameter Description Test Conditions Min. Max. Unit
VOH1 Output HIGH Voltage IOH = −2.0 mA 1.4 V
VOH2 Output HIGH Voltage IOH = −100 µA1.6 V
VOL1 Output LOW Voltage IOL = 2.0 mA 0.4 V
VOL2 Output LOW Voltage IOL = 100 µA0.2V
VIH Input HIGH Voltage 0.65VDD VDD + 0.3 V
VIL Input LOW Voltage –0.3 0.35VDD V
IXInput and OutputLoad Current GND ≤ VI ≤ VDD −55µA
Notes:
10.These characteristic pertain to the TAP inputs (TMS, TCK, TDI and TDO). Parallel load levels are specified in the Electrical Characteristics table.
11.Overshoot: VIH(AC) < VDDQ +0.85V (Pulse width less than tCYC/2), Undershoot: VIL(AC) > –1.5V (Pulse width less than tCYC/2).
12.All voltage referenced to Ground.
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