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| 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 HEF4085B gates Dual 2-wide 2-input AND-OR-invert gate Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification Dual 2-wide 2-input AND-OR-invert gate DESCRIPTION The HEF4085B is a dual 2-wide 2-input AND-OR-invert gate, each with an additional input (A4 or B4) which can be used as either an expander input or an inhibit input. A HIGH on A4 or B4 forces the output (OA or OB) LOW independent of the other inputs (A0 to A3 or B0 to B3). The outputs OA and OB are fully buffered for highest noise immunity and pattern insensitivity of output impedance. HEF4085B gates Fig.2 Pinning diagram. HEF4085BP(N): 14-lead DIL; plastic (SOT27-1) HEF4085BD(F): 14-lead DIL; ceramic (cerdip) (SOT73) HEF4085BT(D): 14-lead SO; plastic (SOT108-1) ( ): Package Designator North America Fig.1 Functional diagram. LOGIC FUNCTION OA = A0 A1 + A2 A3 + A4 OB = B0 B1 + B2 B3 + B4 FAMILY DATA, IDD LIMITS category GATES See Family Specifications Fig.3 Logic diagram (one gate). January 1995 2 Philips Semiconductors Product specification Dual 2-wide 2-input AND-OR-invert gate AC CHARACTERISTICS VSS = 0 V; Tamb = 25 C; CL = 50 pF; input transition times 20 ns VDD V Propagation delays An, Bn On HIGH to LOW 5 10 15 5 LOW to HIGH Output transition times HIGH to LOW 10 15 5 10 15 5 LOW to HIGH 10 15 tTLH tTHL tPLH tPHL 75 30 20 65 30 20 60 30 20 60 30 20 155 ns 60 ns 40 ns 135 ns 55 ns 40 ns 120 ns 60 ns 40 ns 120 ns 60 ns 40 ns 48 ns 19 ns 12 ns 38 ns 19 ns 12 ns 10 ns 9 ns 6 ns 10 ns 9 ns 6 ns + + + + + + + + + + + + SYMBOL TYP. MAX. HEF4085B gates TYPICAL EXTRAPOLATION FORMULA (0,55 ns/pF) CL (0,23 ns/pF) CL (0,16 ns/pF) CL (0,55 ns/pF) CL (0,23 ns/pF) CL (0,16 ns/pF) CL (1,0 ns/pF) CL (0,42 ns/pF) CL (0,28 ns/pF) CL (1,0 ns/pF) CL (0,42 ns/pF) CL (0,28 ns/pF) CL VDD V Dynamic power dissipation per package (P) 5 10 15 TYPICAL FORMULA FOR P (W) 750 fi + (foCL) x VDD2 3200 fi + (foCL) x VDD 9200 fi + (foCL) x VDD 2 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 |
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