74HC4059DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC4059DB,112 is a 16-bit divide-by-N counter IC manufactured by NXP USA Inc. in a 24-SSOP surface mount package. This logic component performs synchronous counting with asynchronous reset, operating at a maximum count rate of 43 MHz across a supply voltage range of 2 V to 6 V. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

74HC4059DB,112

NXP USA Inc.In Stock: 115574HC4059DB,112 Datasheet

Current PartRFQ

CD74HC4059M96

Texas InstrumentsIn Stock: 2313CD74HC4059M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC4059DB,112 is determined by the following critical parameters:

• Logic Type: Divide-by-N counter functionality
• Number of Bits per Element: 16-bit architecture
• Trigger Type: Positive edge triggering
• Reset: Asynchronous reset capability
• Timing: Synchronous operation
• Voltage - Supply: 2 V to 6 V compatibility
• RoHS Compliance: ROHS3 Compliant status

The CD74HC4059M96 from Texas Instruments meets all functional and electrical requirements for direct substitution. Both parts share the same base product number (74HC4059), logic family (74HC series), and core operational characteristics. Differences in package form factor (24-SOIC vs. 24-SSOP) and maximum count rate (32 MHz vs. 43 MHz) are secondary considerations that do not prevent functional equivalence in most applications.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC4059M96 is the manufacturer-recommended substitute for the obsolete 74HC4059DB,112. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The Texas Instruments part carries active product status, providing long-term availability and supply chain stability compared to the NXP obsolete part.

The primary consideration for selection is package compatibility. The 24-SOIC package of the CD74HC4059M96 is physically larger than the 24-SSOP package of the original part. PCB layout modifications may be required to accommodate the wider package width (7.50mm vs. 5.30mm). Pin-to-pin functionality remains identical, allowing direct electrical substitution once package placement is resolved.

The count rate difference (32 MHz vs. 43 MHz) should be evaluated against application timing requirements. Applications operating below 32 MHz encounter no performance limitation. Applications requiring operation above 32 MHz must retain the original NXP part or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC4059M96 replace the 74HC4059DB,112 in all applications?

A: Electrical and functional compatibility is complete. Package form factor differences require PCB layout assessment. Applications with count rate requirements exceeding 32 MHz must retain the original part.

Q: What is the primary difference between these parts?

A: The CD74HC4059M96 uses a 24-SOIC package (7.50mm width) while the 74HC4059DB,112 uses a 24-SSOP package (5.30mm width). Both packages contain 24 pins with identical pinout and electrical characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both the 74HC4059DB,112 and CD74HC4059M96 are ROHS3 compliant with moisture sensitivity level 1 (unlimited).

Q: Why is the 74HC4059DB,112 marked as obsolete?

A: NXP has discontinued this part number. The CD74HC4059M96 from Texas Instruments provides functional continuity for existing designs.

Q: What is the operating temperature range difference?

A: The 74HC4059DB,112 operates from -40°C to 125°C. The CD74HC4059M96 extends the lower temperature limit to -55°C, providing broader environmental coverage.

Q: Are pin assignments identical between these parts?

A: Yes. Both parts share the same base product number (74HC4059) and maintain identical pin assignments and electrical characteristics within their respective package types.