CD4099BCN Equivalent & Substitute Parts

Part Overview

The CD4099BCN is a D-Type, Addressable 8-bit latch IC in a 16-DIP package, part of the 4000B logic series. This component functions as a 1:8 addressable latch with standard output configuration, designed for digital logic applications requiring addressable storage and control. The CD4099BCN is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

CD4099BCN

onsemiIn Stock: 2246CD4099BCN Datasheet

Current PartRFQ

CD4099BE

Texas InstrumentsIn Stock: 2381CD4099BE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4099BCN is determined by strict equivalence across the following critical parameters:

• Logic Architecture: D-Type, Addressable configuration with 1:8 circuit ratio
• Package Compatibility: 16-DIP (0.300", 7.62mm) through-hole mounting
• Electrical Performance: Propagation delay of 50ns and output current specifications
• Operating Range: Temperature range of -55°C to 125°C
• Supply Voltage: Minimum 3V operation capability

The CD4099BE from Texas Instruments meets all substitution criteria. Both parts share identical logic type, circuit configuration, output type, propagation delay, operating temperature range, and package specifications. The CD4099BE maintains backward compatibility with the obsolete CD4099BCN while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The CD4099BE is a direct functional equivalent to the CD4099BCN and is suitable for substitution in all applications. Selection between these parts should be based on the following factors:

For Obsolete Component Replacement: The CD4099BE is the preferred choice due to its active product status, ensuring long-term availability and supply chain reliability. The onsemi CD4099BCN, being obsolete, presents procurement challenges and should be replaced with the Texas Instruments CD4099BE in new designs or system upgrades.

For Compliance Requirements: The CD4099BE carries ROHS3 compliance certification, meeting modern regulatory standards. This is advantageous for applications subject to environmental and hazardous substance restrictions.

For Extended Operating Voltage: The CD4099BE supports a supply voltage range of 3V to 18V, compared to the CD4099BCN's 3V to 15V range. This extended upper limit provides additional design flexibility in systems with variable supply voltages.

For Output Current Specifications: The CD4099BE delivers lower output current (6.8mA versus 8.8mA) while maintaining identical propagation delay and logic performance. This reduction in output current may provide thermal and power consumption benefits in current-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the CD4099BE directly replace the CD4099BCN in existing circuit boards?

A: Yes. Both parts are housed in identical 16-DIP packages with 0.300" (7.62mm) spacing and through-hole mounting. Pin-for-pin compatibility is maintained, allowing direct substitution without PCB modifications.

Q: What is the primary reason for substituting the CD4099BCN?

A: The CD4099BCN is classified as obsolete, creating supply and support challenges. The CD4099BE from Texas Instruments is an active product with equivalent functionality, making it the appropriate long-term replacement.

Q: Are there any electrical differences that affect circuit design?

A: The CD4099BE has a higher maximum supply voltage (18V versus 15V) and lower output current specifications (6.8mA versus 8.8mA). Both differences are compatible with applications designed for the CD4099BCN. The extended voltage range of the CD4099BE provides additional operational flexibility.

Q: Do both parts operate across the same temperature range?

A: Yes. Both the CD4099BCN and CD4099BE operate from -55°C to 125°C, ensuring identical thermal performance characteristics.

Q: What packaging options are available for the CD4099BE?

A: The CD4099BE is supplied in Tube packaging, maintaining the 16-DIP form factor. This is consistent with the through-hole mounting requirement of the original CD4099BCN.

Q: Is the CD4099BE compliant with modern environmental standards?

A: Yes. The CD4099BE is ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations applicable to electronic components.