Tap controller block diagram, Tap electrical characteristics – Cypress CY7C1157V18 User Manual
Page 15
CY7C1146V18, CY7C1157V18
CY7C1148V18, CY7C1150V18
Document Number: 001-06621 Rev. *D
Page 15 of 27
TAP Controller Block Diagram
Figure 3. Tap Controller Block Diagram
TAP Electrical Characteristics
The Tap Electrical Characteristics table over the operating range follows.
Parameter
Description
Test Conditions
Min
Max
Unit
V
OH1
Output HIGH Voltage
I
OH
=
−2.0 mA
1.4
V
V
OH2
Output HIGH Voltage
I
OH
=
−100 μA
1.6
V
V
OL1
Output LOW Voltage
I
OL
= 2.0 mA
0.4
V
V
OL2
Output LOW Voltage
I
OL
= 100
μA
0.2
V
V
IH
Input HIGH Voltage
0.65 V
DD
V
DD
+ 0.3
V
V
IL
Input LOW Voltage
–0.3
0.35 V
DD
V
I
X
Input and Output Load Current
GND
≤ V
I
≤ V
DD
−5
5
μA
0
0
1
2
.
.
29
30
31
Boundary Scan Register
Identification Register
0
1
2
.
.
.
.
106
0
1
2
Instruction Register
Bypass Register
Selection
Circuitry
Selection
Circuitry
TAP Controller
TDI
TDO
TCK
TMS
Notes
11. These characteristics pertain to the TAP inputs (TMS, TCK, TDI, and TDO). Parallel load levels are specified in the Electrical Characteristics Table.
12. Overshoot: V
IH
(AC) < V
DDQ
+ 0.35V (Pulse width less than t
CYC
/2), Undershoot: V
IL
(AC) >
−
0.3V (Pulse width less than t
CYC
/2).
13. All voltage referenced to ground.