Philips Semiconductors
Quadruple R/S latch with 3-state outputs
Product specification
HEF4044B
MSI
Dynamic power
dissipation per
package (P)
VDD
V
TYPICAL FORMULA FOR P (µW)
5
1300 fi + ∑ (foCL) × VDD 2
10
5200 fi + ∑ (foCL) × VDD 2
15
12 900 fi + ∑ (foCL) × VDD 2
where
fi = input freq. (MHz)
fo = output freq. (MHz)
CL = total load capacitance (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
Fig.5 Waveforms showing minimum Sn and Rn pulse widths.
APPLICATION INFORMATION
An example of application for the HEF4044B is:
• Four-bit storage with output enable
January 1995
5