Datasheet

January 1995 4
Philips Semiconductors Product specification
HEX inverting buffers
HEF4049B
buffers
V
DD
V
TYPICAL FORMULA FOR P (µW)
Dynamic power 5 2 500 f
i
+∑(f
o
C
L
) × V
DD
2
where
dissipation per 10 11 000 f
i
+∑(f
o
C
L
) × V
DD
2
f
i
= input freq. (MHz)
package (P) 15 35 000 f
i
+∑(f
o
C
L
) × V
DD
2
f
o
= output freq. (MHz)
C
L
= load capacitance (pF)
∑ (f
o
C
L
) = sum of outputs
V
DD
= supply voltage (V)