HEF4512B

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 HEF4512B MSI 8-input multiplexer with 3-state output Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification 8-input multiplexer with 3-state output DESCRIPTION The HEF4512B is an 8-input multiplexer with 8 binary inputs (I0 to I7), an enable input (E) and an output enable input (EO). One of eight binary inputs is selected by select inputs S0, S1 and S2, and is routed to the output O. A HIGH on EO causes O to assume a high impedance OFF-state, regardless of other input conditions. This allows the output HEF4512B MSI to interface directly with bus oriented systems (3-state). When the active LOW enable (E) is HIGH, it forces the output LOW provided EO is LOW. By proper manipulation of the inputs, the device can provide any logic functions of four variables. It cannot be used to multiplex analogue signals. Fig.2 Pinning diagram. HEF4512BP(N): HEF4512BD(F): HEF4512BT(D): Fig.1 Functional diagram. 16-lead DIL; plastic (SOT38-1) 16-lead DIL; ceramic (cerdip) (SOT74) 16-lead SO; plastic (SOT109-1) ( ): Package Designator North America PINNING S0, S1, S2 EO E I0 to I7 O select inputs output enable (active LOW) enable (active LOW) multiplexer inputs multiplexer output FAMILY DATA, IDD LIMITS category MSI ...