NXP Semiconductors HEF4066B
The HEF4066B has four independent bilateral analogue switches (transmission gates). Each switch has two input/output terminals (Y/Z) and an active HIGH enable input (E). When E is connected to VDD a low impedance bidirectional path between Y and Z is established (ON condition).DESCRIPTION
When E is connected to VSS the switch is HEF4066B gates disabled and a high impedance between Y and Z is established (OFF condition). The HEF4066B is pin compatible with the HEF4016B but exhibits a much lower ON resistance. In addition the ON resistance is relatively constant over the full input signal range. Fig.1 Functional diagram. Fig.2 Pinning diagram. PINNING HEF4066BP(N): 14-lead DIL; plastic (SOT27-1) HEF4066BD(F): 14-lead DIL; ceramic (cerdip) (SOT73)) HEF4066BT(D): 14-lead SO; plastic (SOT108-1) ( ): Package Designator North America APPLICATION INFORMATION An example of application for the HEF4066B is:● Analogue and digital switching E0 to E3 Y0 to Y3 Z0 to Z3 enable inputs input/output terminals input/output terminals Fig.3 Schematic diagram (one switch). January 1995 2 Philips Semiconductors Product specification Quadruple bilateral switches RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Power dissipation per switch For other RA...