CD4018BPWR Equivalent & Substitute Parts

Part Overview

The CD4018BPWR is a Counter IC Divide-by-N logic component manufactured by Texas Instruments, part of the 4000B series. This 5-bit positive edge-triggered counter operates across a wide supply voltage range of 3 V to 18 V and supports count rates up to 8.5 MHz. The device is packaged in a 16-TSSOP surface mount configuration with asynchronous reset and synchronous timing characteristics.

The CD4018BPWR carries an Obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring divide-by-N counter functionality with identical electrical and mechanical specifications.

Substiute Parts

CD4018BPWR

Texas InstrumentsIn Stock: 758CD4018BPWR Datasheet

Current PartRFQ

CD4018BPW

Texas InstrumentsIn Stock: 2597CD4018BPW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD4018BPWR are determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters define valid substitution:

• Logic Type: Divide-by-N counter architecture
• Bit Configuration: 5-bit single element
• Reset and Timing: Asynchronous reset with synchronous timing
• Count Rate: 8.5 MHz maximum
• Trigger Mechanism: Positive edge-triggered
• Supply Voltage Range: 3 V to 18 V
• Operating Temperature Range: -55°C to 125°C
• Package Type: 16-TSSOP surface mount
• Compliance: ROHS3 and REACH requirements

The CD4018BPW qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and packaging format (Tube vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The CD4018BPW is the recommended substitute for the obsolete CD4018BPWR. Both devices share identical electrical specifications, functional characteristics, and package configuration. The CD4018BPW maintains Active product status with Texas Instruments, ensuring continued availability and supply chain support.

Both parts comply with ROHS3 and REACH requirements, maintaining regulatory compliance for new designs and legacy system replacements. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either device.

Selection between these parts should be based on availability and supply chain requirements rather than technical performance, as electrical and mechanical compatibility is complete.

Frequently Asked Questions (FAQ)

Q: Can CD4018BPW directly replace CD4018BPWR in existing designs?

A: Yes. Both devices are electrically and mechanically identical. The CD4018BPW operates across the same supply voltage range (3 V to 18 V), supports the same count rate (8.5 MHz), and uses the identical 16-TSSOP package. Pin configuration and functional behavior are equivalent.

Q: What is the primary difference between CD4018BPWR and CD4018BPW?

A: The CD4018BPWR is classified as Obsolete, while the CD4018BPW maintains Active status. Packaging format differs (standard vs. Tube), but electrical specifications and performance characteristics are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry ROHS3 compliance and REACH Unaffected status. Moisture sensitivity level (MSL 1 - Unlimited) is identical for both devices.

Q: What parameters must match for a valid substitute?

A: Valid substitutes must maintain identical Logic Type (Divide-by-N), bit configuration (5-bit), reset mechanism (Asynchronous), timing (Synchronous), count rate (8.5 MHz), trigger type (Positive Edge), supply voltage range (3 V to 18 V), operating temperature range (-55°C to 125°C), and package type (16-TSSOP surface mount).

Q: Is the 16-TSSOP package compatible with existing PCB layouts?

A: Yes. Both CD4018BPWR and CD4018BPW use the 16-TSSOP package with identical dimensions (0.173" width, 4.40mm). PCB footprints and land patterns are directly compatible.