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Product Detailed Parameters
- Description：MULTIPLEXER 8 LINE INPUT
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Type：Data Selector/Multiplexer
- Circuit：1 x 8:1
- Independent Circuits：1
- Current - Output High, Low：-
- Voltage Supply Source：Dual Supply
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：Through Hole
- Package / Case：14-CDIP (0.300", 7.62mm)
- Supplier Device Package：14-CDIP
- Grade：-
- Qualification：-
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Overview
The National Semiconductor CD4512BDM is an 8-channel data selector featuring three-state outputs, designed to interface directly with and drive data lines of bus-oriented systems. It operates under standardized, symmetrical output characteristics and meets JEDEC Tentative Standard No. 13B for 'B' Series CMOS devices. The device is supplied in a 16-lead outline package, specifically the Braze Seal DIP H4S or Frit Seal DIP H1E configurations.
Feature Summary
- Provides eight selectable input channels with direct bus system interfacing capability via three-state outputs.
- Features high-voltage tolerance with a 20-volt rating and tested quiescent current performance at maximum voltage.
- Ensures signal integrity through defined noise margins across 5V, 10V, and 15V parametric ratings.
Applications
- Bus-oriented system data line driving
- CMOS logic circuit design
- Data selection and routing
Procurement Notes
Verify the specific package variant (Braze Seal DIP H4S or Frit Seal DIP H1E) required for your application. Confirm that the component meets the necessary JEDEC standards for your environment. Ensure compatibility with the specified voltage ratings and noise margin requirements before integration into the final design.
Selection Notes
Select this component when an 8-channel multiplexer with three-state output buffering is required for bus systems. Consider the 20V rating and noise margins if operating in higher voltage environments. Verify package availability matches the board layout constraints for the 16-lead DIP options.
Part Context
This part belongs to the CD45xx series of CMOS logic devices, which are widely used in digital electronics. The CD4512 specifically functions as an 8-to-1 data selector. It is comparable to other industry-standard CMOS multiplexers but is distinguished by its specific three-state output configuration and high-voltage testing parameters.
Replacement Considerations
Check for pin-compatible alternatives from manufacturers like Texas Instruments or NXP that offer similar 8-channel 3-state functionality. Ensure replacement parts meet the same JEDEC standards and voltage ratings.
