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7901A
Table 5-17. Integrated Circuit Characteristics
INPUT LEVEL
OUTPUT LEVE L
CHARACTERISTIC
NUMBER
LOGIC 1
LOGIC 0
LOGIC 1
LOGIC 0
(VOLTS MIN) (VOLTS MAX) (VOLTS MIN) (VOLTS MAX)
2
2.0
0.8
2.4
0.4
8
2.0(1)
0.8
2.4
0.4
12
2.0
0.8
2.4(2)
0.4
13
2.0(3)
0.8
2.4
0.4
29
2.0(4)
0.8(5)
2.4
0.4
3'5
2.0
0.8
2.4
0.4
44
1.8
1.1
2.5
0.4
47
3.0
-3.0
2.6
0.45
48
1.9
0.85
2.4
0.45
49
1.8
1 .1
2.5
0.4
61
2.0
0.8
2.4
0.4
62
2.0
0.9
2.5
0.4
63
2.0
0.8
2.4
0.4
64
-----
6.5
2.5
4.0
66
1.5
1.1
2.4
0.4
67
2.0
0.8
..
----
0.4
68
2.0
0.8
-----
------
69
2.0
0.8
2.4
0.4
72
1.9
1.1
2.6
0.45
73
1.9
0.85
2.4
0.45
74
2.0
0.8
2.4
0.4
75
Input voltage
2:
15min.
Output voltage
+ 12 min.
-
NOTES:
(1 )
Required pulse widths 30 ns minimum.
(2)
BSCO-BSC9 only one output'" O. BCD9 all outputs'" 1.
(3)
Required pulse widths 16 ns minimum.
(4)
+2.2V for pin 1.
(5)
+0.6V for pin 1.
(6)
Delay is 27 ns at output and 22 ns at carry/borrow.
(7)
Delay is 37 ns at output and 18 ns at carry /borrow.
OPEN
PROPOGATION DELAY
INPUT
ACTS TO LOGIC 1 TO LOGIC 0
AS
(NS)
(NS)
1
29
15
1
35
50
1
35
30
1
55
60
1
135
135
1
(6)
(7)
1
15
15
---
90
80
1
40
........
-
1
10
10
1
22
15
---
12
15
1
23 and 30
17 and 22
---
------
-----
1
27
22
1
15
23
---
15 and 25
15and25
---
25 and 15
25 and 15
1
60
35
1
27
27
1
42
45
-
-
-
I
1820·0054
CHARACTERISTIC 2
1820-0192
VCC
1 - - - - - - - - - -
9------1
I
I
112
71
I
I
111
8 1
CHARACTERISTIC 62
1820-0398
CHARACTERISTIC 64
CHARACTERISTIC 72
7901-71
1820-0068
CHARACTERISTIC
2
CHARACTERISTIC
48
CHARACTERISTIC
44
CH
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