Chapter 3 Scan Path Block
NEC Scan D-F/F (CB)
Chapter 3 Scan Path Block
Switching speed
Function
Block
type
Input
Output
Path
→
t LD0 (ns)
t 1
Standard type
Q output
Block type
IN
CB
OUT
MIN.
(LH) 0.412
(LL) 0.405
(LH) 0.516
TYP. MAX.
MIN.
0.011
0.010
0.011
0.010
TYP. MAX. Symbol Fanin Symbol Fanout
Normal
Name cells Name cells
QB output
Name cells Name cells
0.681
0.659
0.854
0.933
1.304
1.254
1.655
1.780
1.150
0.250
2.297
0.015
0.013
0.015
0.013
0.021
0.017
0.021
0.018
D
CB
1.0
2.3
Q
35
35
SE631
→
Q
Drivability
Name cells
Name cells
QB
CB
→
QB
x1
x2
x4
x8
SE631
11
(LL)
0.561
0.610
0.270
0.958
Set up time
Hold time
Min Pulse
D
D
CB
Logic Diagram for "Normal"
Truth Table for "Normal"
D
CB
Q
QB
D
H01
N01
Q
0
1
X
0
1
1
0
Hold
CB H02
N02 QB
X:Irrelevant
Logic Diagram for "Q output"
Truth Table for "Q output"
Logic Diagram for "QB output"
Truth Table for "QB output"
Block Library A13872EJ5V0BL
3 - 58
Block Library A13872EJ5V0BL
3 - 59
ETC [ ETC ]
