Chapter 2 Function Block
Chapter 2 Function Block
Switching speed
D-F/F with Hold
Normal
Function
Block
type
Input
Output
Path
→
t LD0 (ns)
t 1
Standard type
Low Gate type
Block type
IN
OUT
MIN.
TYP. MAX.
MIN.
0.011
0.010
0.011
0.010
TYP. MAX. Symbol Fanin Symbol Fanout
Q output
Name cells
QB output
Normal
Q output
QB output
(HH) 0.362
(HL) 0.409
(HH) 0.528
(HL) 0.521
0.680
0.554
0.661
0.866
0.821
0.998
1.224
1.639
1.492
1.500
1.590
0.000
0.000
2.015
0.998
1.223
1.500
1.600
0.000
0.000
1.600
1.002
0.958
1.470
1.560
0.010
0.000
1.382
0.015
0.013
0.015
0.013
0.021
0.017
0.021
0.018
D
C
H
1.0
1.0
1.0
Q
35
35
F641H
C
C
→
Q
Drivability
Name cells
Name cells
Name cells
Name cells
Name cells
QB
→
QB
Low Power
F641H
10
F641HQ
9
F641HB
9
x1
x2
x4
Set up time
Set up time
Hold time
Hold time
Min Pulse
D
H
D
H
C
0.670
0.270
0.250
0.714
Logic Diagram for "Normal"
Truth Table for "Normal"
(HH) 0.361
(HL) 0.409
0.680
0.554
0.660
0.011
0.010
0.015
0.013
0.021
0.017
D
C
H
1.0
1.0
1.0
Q
35
34
F641HQ
F641HB
C
→
Q
D
C
H
Q
QB
D
C
H
H01
H02
H03
N01
Q
Set up time
Set up time
Hold time
Hold time
Min Pulse
D
H
D
H
C
0.670
0.270
0.250
0.580
0
1
0
0
1
X
0
1
1
0
X
X
Hold
Hold
N02 QB
(HH) 0.338
(HL) 0.345
0.680
0.540
0.543
0.011
0.011
0.015
0.014
0.022
0.020
D
C
H
1.0
1.0
1.0
QB
C
→
QB
X:Irrelevant
Set up time
Set up time
Hold time
Hold time
Min Pulse
D
H
D
H
C
0.670
0.270
0.250
0.541
Logic Diagram for "Q output"
Truth Table for "Q output"
D
C
H
Q
D
C
H
H01
H02
H03
N01
Q
0
1
0
0
1
X
0
1
X
X
Hold
Hold
X:Irrelevant
Logic Diagram for "QB output"
Truth Table for "QB output"
D
C
H
QB
D
C
H
H01
H02
H03
0
1
0
0
1
X
1
0
X
X
Hold
Hold
N01 QB
X:Irrelevant
Block Library A13872EJ5V0BL
2 - 308
Block Library A13872EJ5V0BL
2 - 309