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Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
SWITCHING CHARACTERISTICS*
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Characteristic
Output Rise and Fall Time
t TLH , t THL = (1.5 ns/pF) C L + 25 ns
t TLH , t THL = (0.75 ns/pF) C L + 12.5 ns
t TLH , t THL = (0.55 ns/pF) C L + 9.5 ns
Propagation Delay Time
Sum in to Sum Out
t PLH , t PHL = (1.7 ns/pF) C L + 620 ns
t PLH , t PHL = (0.66 ns/pF) C L + 217 ns
t PLH , t PHL = (0.5 ns/pF) C L + 155 ns
Sum in to Sum Out (Logic Mode)
t PLH , t PHL = (1.7 ns/pF) C L + 520 ns
t PLH , t PHL = (0.66 ns/pF) C L + 182 ns
t PLH , t PHL = (0.5 ns/pF) C L + 155 ns
Sum in to A = B
t PLH , t PHL = (1.7 ns/pF) C L + 870 ns
t PLH , t PHL = (0.66 ns/pF) C L + 297 ns
t PLH , t PHL = (0.5 ns/pF) C L + 220 ns
Sum in to P or G
t PLH , t PHL = (1.7 ns/pF) C L + 400 ns
t PLH , t PHL = (0.66 ns/pF) C L + 147 ns
t PLH , t PHL = (0.5 ns/pF) C L + 105 ns
Sum in to C n+4
t PLH , t PHL = (1.7 ns/pF) C L + 530 ns
t PLH , t PHL = (0.66 ns/pF) C L + 187 ns
t PLH , t PHL = (0.5 ns/pF) C L + 135 ns
Carry in to Sum Out
t PLH , t PHL = (1.7 ns/pF) C L + 295 ns
t PLH , t PHL = (0.66 ns/pF) C L + 112 ns
t PLH , t PHL = (0.5 ns/pF) C L + 80 ns
Carry in to C n+4
t PLH , t PHL = (1.7 ns/pF) C L + 220 ns
t PLH , t PHL = (0.66 ns/pF) C L + 87 ns
t PLH , t PHL = (0.5 ns/pF) C L + 60 ns
* The formulas given are for the typical characteristics only at 25 _ C.
#Data labelled "Typ" is not to be used for design purposes but is intended as an indication of the IC's potential performance.
Test
Sum in to Sum out
Delay Time
Sum in to P
Delay Time
Sum in to G
Delay Time
Sum in to C n+4
Delay Time
C n to Sum out
Delay Time
C n to C n+4
Delay Time
Sum in to A = B
Delay Time
Sum in to Sum out
Delay Time
(Logic Mode)
MOTOROLA CMOS LOGIC DATA
(C L = 50 pF, T A = 25 _ C)
Symbol
t TLH ,
t THL
t PLH ,
t PHL
t PLH ,
t PHL
t PLH ,
t PHL
t PLH ,
t PHL
t PLH
t PLH ,
t PHL
t PLH ,
t PHL
AC TEST SETUP REFERENCE TABLE
AC Paths
Inputs
Outputs
Remaining A's
A0
Any F
Remaining A's
A0
P
B0
G
B0
C n+y
C n
Any F
C n
C n+4
A0
A = B
Remaining A's
B 0
Any F
V DD
Min
5.0
—
10
—
15
—
5.0
—
10
—
15
—
5.0
—
10
—
15
—
5.0
—
10
—
15
—
5.0
—
10
—
15
—
5.0
—
10
—
15
—
5.0
—
10
—
15
—
5.0
—
10
—
15
—
DC Data Inputs
To V SS
To V DD
All B's
C n
All B's
C n
All A's
Remaining B's
C n
All A's
Remaining B's
C n
All A's
All B's
All A's
All B's
All B's
C n
Exclusive
All A's
M
Typ #
Max
Unit
ns
100
200
50
100
40
80
ns
705
1410
250
500
180
360
ns
605
1210
215
430
180
360
ns
955
1910
330
660
245
490
ns
485
970
180
360
130
260
ns
615
1230
220
440
160
360
ns
380
760
145
290
105
210
ns
305
610
120
240
85
170
Fig. 3
g
Waveform
Mode
Add
#1
Add
#1
Add
#1
Add
#2
Add
#1
Add
#1
Sub
#2
#2
OR
MC14581B
6–491
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