INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: * The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC * The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4025B gates Triple 3-input NOR gate Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification HEF4025B gates Triple 3-input NOR gate DESCRIPTION The HEF4025B provides the positive triple 3-input NOR function. The outputs are fully buffered for highest noise immunity and pattern insensitivity of output impedance. Fig.2 Pinning diagram. HEF4025BP(N): 14-lead DIL; plastic HEF4025BD(F): 14-lead DIL; ceramic (cerdip) (SOT27-1) (SOT73) HEF4025BT(D): Fig.1 Functional diagram. 14-lead SO; plastic (SOT108-1) ( ): Package Designator North America Fig.3 Logic diagram (one gate). FAMILY DATA, IDD LIMITS category GATES See Family Specifications January 1995 2 Philips Semiconductors Product specification HEF4025B gates Triple 3-input NOR gate AC CHARACTERISTICS VSS = 0 V; Tamb = 25 C; CL = 50 pF; input transition times 20 ns VDD V SYMBOL TYP. TYPICAL EXTRAPOLATION FORMULA MAX. Propagation delays In On HIGH to LOW 5 10 tPHL 15 5 LOW to HIGH 10 tPLH 15 Output transition times HIGH to LOW 5 10 tTHL 15 5 LOW to HIGH 10 15 VDD V Dynamic power dissipation per package (P) 5 tTLH 70 135 ns 43 ns + (0,55 ns/pF) CL 25 55 ns 14 ns + (0,23 ns/pF) CL 20 40 ns 12 ns + (0,16 ns/pF) CL 60 120 ns 33 ns + (0,55 ns/pF) CL 25 50 ns 14 ns + (0,23 ns/pF) CL 15 35 ns 7 ns + (0,16 ns/pF) CL 10 ns + (1,0 ns/pF) CL 60 120 ns 30 60 ns 9 ns + (0,42 ns/pF) CL 20 40 ns 6 ns + (0,28 ns/pF) CL 60 120 ns 30 60 ns 9 ns + (0,42 ns/pF) CL 20 40 ns 6 ns + (0,28 ns/pF) CL 10 ns + (1,0 ns/pF) CL TYPICAL FORMULA FOR P (W) 900 fi + (foCL) x VDD 2 10 4000 fi + (foCL) x VDD 2 15 10 900 fi + (foCL) x VDD 2 where fi = input freq. (MHz) fo = output freq. (MHz) CL = load capacitance (pF) (foCL) = sum of outputs VDD = supply voltage (V) January 1995 3