MC14512BD

Overview

The MC14512BD is an 8-channel data selector manufactured by onsemi, utilizing a single monolithic structure of MOS P-channel and N-channel enhancement mode devices. It operates on a single supply voltage ranging from 3.0 Vdc to 18 Vdc. The device features diode protection on all inputs and provides a 3-state output capable of Logic '1', Logic '0', or High Impedance states. It is designed to drive two low-power TTL loads or one low-power Schottky TTL load over the rated temperature range. The component is housed in a 16-pin SOIC package.

Feature Summary

• Provides 3-state output functionality allowing connection to shared data buses
• Includes input diode protection against high static voltages or electric fields
• Capable of driving standard low-power TTL loads directly

Applications

• Signal multiplexing functions
• Data routing applications
• Digital signal switching
• Signal gating operations
• Number sequence generation

Procurement Notes

Verify the specific ordering suffix to confirm package type and environmental compliance. The 'D' suffix indicates the SOIC-16 package. Ensure the required version matches the datasheet revision for accurate electrical characteristics. Confirm availability of lead-free (G suffix) options if RoHS compliance is mandatory for the target assembly process.

Selection Notes

Select this component when an 8-channel multiplexer with 3-state outputs is required. Verify that the operating voltage falls within the 3V to 18V range. Consider the propagation delay specifications at the intended supply voltage. Ensure unused inputs are tied to appropriate logic levels during design to prevent undefined states.

Part Context

This part belongs to the MC14512B series of 8-channel data selectors. It is constructed using complementary MOS technology. The device serves as a primary solution for selecting one of eight digital inputs to route to a common output line while maintaining bus isolation through its high-impedance state capability.

Replacement Considerations

CD4512BM96 and CD4512BMT from Texas Instruments are confirmed substitutes.