CD4059AE Equivalent & Substitute Parts

Part Overview

The CD4059AE is a 16-bit divide-by-N counter IC manufactured by Texas Instruments, part of the 4000 CMOS logic series. This through-hole mounted device operates as a programmable counter with asynchronous reset, capable of dividing input frequencies up to 12 MHz across a supply voltage range of 3V to 12V. The CD4059AE is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. Substitute parts maintain identical functional specifications while offering alternative packaging and mounting technologies to support modern manufacturing processes.

Substiute Parts

CD4059AE

Texas InstrumentsIn Stock: 1529CD4059AE Datasheet

Current PartRFQ

CD4059AM

Texas InstrumentsIn Stock: 3341CD4059AM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4059AE is determined by functional equivalence across core electrical parameters. The CD4059AM qualifies as a direct substitute based on the following criteria:

Electrical Equivalence Parameters:

• Logic Type: Divide-by-N (identical)
• Bit Configuration: 16-bit, 1 element (identical)
• Count Direction: Down (identical)
• Reset Mechanism: Asynchronous (identical)
• Trigger Configuration: Positive Edge (identical)
• Maximum Count Rate: 12 MHz (identical)
• Supply Voltage Range: 3V to 12V (identical)
• Operating Temperature Range: -55°C to 125°C (identical)

Compliance Parameters:

• RoHS3 Compliance (identical)
• Moisture Sensitivity Level 1 (identical)
• REACH Status: REACH Unaffected (identical)

The primary distinction between the CD4059AE and CD4059AM is packaging and mounting technology: the CD4059AE uses through-hole 24-DIP packaging, while the CD4059AM uses surface-mount 24-SOIC packaging. Both parts share the same base product number (CD4059) and maintain full functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CD4059AM is the active equivalent for the obsolete CD4059AE. Both parts maintain identical electrical specifications and compliance certifications (ROHS3, REACH Unaffected). Selection between these parts depends on circuit board design requirements:

CD4059AE (Through-Hole 24-DIP): Suitable for legacy designs, prototype boards, or applications requiring through-hole mounting technology. Product status is obsolete; availability is limited to existing inventory.

CD4059AM (Surface-Mount 24-SOIC): Recommended for new designs and production applications. Active product status ensures long-term availability and supply chain continuity. Surface-mount packaging supports modern PCB manufacturing processes and reduces board footprint.

Both parts are ROHS3 compliant and carry unlimited moisture sensitivity rating, making them suitable for standard industrial and commercial applications without additional handling requirements.

Frequently Asked Questions (FAQ)

Q: Can CD4059AM directly replace CD4059AE in existing designs?

A: Electrical functionality is identical. Physical replacement requires PCB redesign due to different mounting technologies: CD4059AE uses through-hole 24-DIP, while CD4059AM uses surface-mount 24-SOIC. Pin configurations and signal levels are equivalent.

Q: Why is the CD4059AE classified as obsolete?

A: The CD4059AE has been superseded by the CD4059AM, which uses modern surface-mount packaging. Texas Instruments maintains the CD4059AM as the active product in this family.

Q: Are there any electrical differences between CD4059AE and CD4059AM?

A: No. Both parts share identical specifications for logic type, bit configuration, count rate (12 MHz), supply voltage range (3V to 12V), operating temperature range (-55°C to 125°C), and reset mechanism (asynchronous).

Q: What is the impact of different packaging on circuit design?

A: CD4059AE (24-DIP) requires through-hole mounting and larger board space. CD4059AM (24-SOIC) uses surface-mount technology, enabling smaller PCB footprint and automated assembly. Signal integrity and electrical performance remain unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both CD4059AE and CD4059AM are ROHS3 compliant and carry REACH Unaffected status, meeting environmental and regulatory requirements for industrial and commercial applications.

Q: What is the moisture sensitivity rating for these parts?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling or baking requirements during storage or assembly.