Philips Semiconductors
Product specification
Quadruple 2-input NAND Schmitt trigger
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25
°C;
C
L
= 50 pF; input transition times
≤
20 ns
V
DD
V
Propagation delays
I
n
→
O
n
HIGH to LOW
LOW to HIGH
Output transition times
HIGH to LOW
5
10
15
5
10
15
5
10
15
5
LOW to HIGH
10
15
t
TLH
t
THL
t
PLH
t
PHL
SYMBOL
TYP.
90
40
30
85
40
30
60
30
20
60
30
20
MAX.
185 ns
80 ns
60 ns
170 ns
80 ns
60 ns
120 ns
60 ns
40 ns
120 ns
60 ns
40 ns
HEF4093B
gates
TYPICAL EXTRAPOLATION
FORMULA
63 ns
+
(0,55 ns/pF) C
L
29 ns
+
(0,23 ns/pF) C
L
22 ns
+
(0,16 ns/pF) C
L
58 ns
+
(0,55 ns/pF) C
L
29 ns
+
(0,23 ns/pF) C
L
22 ns
+
(0,16 ns/pF) C
L
10 ns
+
(1,0 ns/pF) C
L
9 ns
+
(0,42 ns/pF) C
L
6 ns
+
(0,28 ns/pF) C
L
10 ns
+
(1,0 ns/pF) C
L
9 ns
+
(0,42 ns/pF) C
L
6 ns
+
(0,28 ns/pF) C
L
V
DD
V
Dynamic power
dissipation per
package (P)
5
10
15
TYPICAL FORMULA FOR P (µW)
1300 f
i
+ ∑(f
o
C
L
)
×
V
DD2
6400 f
i
+ ∑(f
o
C
L
)
×
V
DD2
18 700 f
i
+ ∑(f
o
C
L
)
×
V
DD2
where
f
i
= input freq. (MHz)
f
o
= output freq. (MHz)
C
L
= load capacitance (pF)
∑
(f
o
C
L
) = sum of outputs
V
DD
= supply voltage (V)
January 1995
4
PHILIPS [ NXP SEMICONDUCTORS ]
