SCANPSC110F Datasheet, PDF (21/29 Pages) National Semiconductor (TI) – SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)

AC Electrical Characteristics
Military
Symbol
Parameter
T_A = −55˚C
V_CC
to +125˚C
Fig.
Units
(V)
C_L = 50 pF
No.
Guaranteed
Minimum
t_S
Setup Time
TMS_B to TCK_B↑
t_H
Hold Time
TMS_B to TCK_B↑
t_S
Setup Time
TDI_B to TCK_B↑
t_H
Hold Time
TdI_B to TCK_B↑
t_S
Setup Time
S_n to TCK_B↓
(in Update-DR state)
5.0
8.0
5.0
4.0
5.0
6.0
5.0
4.0
5.0
12.5
ns
Figure 13
ns
Figure 13
ns
Figure 13
ns
t_H
Hold Time
S_n to TCK_B↓
5.0
0.0
ns
(in Update-DR state)
t_S
Setup Time
S_n to TCK_B↑
(in Capture-DR or
5.0
4.0
ns
Capture-IR state)
t_H
Hold Time
S_n to TCK_B↑
(in Capture-DR or
5.0
6.0
ns
Capture-IR state)
t_S
Setup Time
TDI_Ln to TCK_B↑
t_H
Hold Time
TDI_Ln to TCK_B↑
t_S
Setup Time
OE to TCK_B↑
(in Capture-DR state)
5.0
2.0
5.0
6.0
5.0
4.0
ns
Figure 13
ns
Figure 13
ns
t_H
Hold Time
OE to TCK_B↑
5.0
4.0
ns
(in Capture-DR State)
t_W
Clock Pulse Width
TCK_B (H or L)
t_WL
Clock Pulse Width
TRST (L)
5.0
24.0
5.0
10.0
ns
Figure 13
ns
Figure 15
t_REC
Recover Time
5.0
2.0
ns
Figure 15
TCK_B↑ from TRST
t_OSHL,
Output-to-Output Skew
5.0
1.0
ns
(Note 8)
t_OSLH
TCK_Ln
t_OSHL,
Output-to-Output Skew
5.0
2.0
ns
(Note 8)
t_OSLH
TMS_Ln (unparked)
F_MAX
Maximum Clock Frequency
5.0
MHz
Note 8: Skew is defined as the absolute value of the difference between the actual propagation delays for any two separate outputs of the same device. The speci-
fication applies to any outputs switching HIGH to LOW (t_OSHL ), or LOW to HIGH (t_OSLH). The specification is guaranteed but not tested.
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