HEF4518 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
HEF4518 Datasheet PDF : 7 Pages
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Philips Semiconductors
Dual BCD counter
Product specification
HEF4518B
MSI
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; input transition times ≤ 20 ns
Dynamic power
dissipation per
package (P)
VDD
V
5
10
15
TYPICAL FORMULA FOR P (µW)
750fi + ∑ (foCL) × VDD2
3300 fi + ∑ (foCL) × VDD2
8000 fi + ∑ (foCL) × VDD2
where
fi = input freq. (MHz)
fo = output freq. (MHz)
CL = load capacitance (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
Fig.4 Waveforms showing recovery time for MR; minimum CP0, CP1 and MR pulse widths.
January 1995
5
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