74HC160DB,118 Equivalent & Substitute Parts

Part Overview

The 74HC160DB,118 is a decade counter IC manufactured by Nexperia USA Inc., classified as a 4-bit positive edge-triggered synchronous counter in a 16-SSOP surface mount package. This component is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part operates across a 2V to 6V supply range with a maximum count rate of 66 MHz and supports asynchronous reset functionality.

Substiute Parts

74HC160DB,118

Nexperia USA Inc.In Stock: 103774HC160DB,118 Datasheet

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CD74HC4017PWR

Texas InstrumentsIn Stock: 1597CD74HC4017PWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC160DB,118 is determined by the following critical parameters:

• Logic Function: Decade counter operation (divide-by-10 counting)
• Bit Width: 4-bit counter element
• Trigger Type: Positive edge-triggered operation
• Reset Type: Asynchronous reset capability
• Supply Voltage Compatibility: 2V to 6V operation range
• Package Compatibility: 16-pin surface mount configuration
• Compliance Standards: ROHS3 compliance and EAR99 classification

The CD74HC4017PWR from Texas Instruments shares the same logic family (74HC series) and decade counter classification. However, this substitute presents a functional difference: it provides 10-bit counter capability versus the 4-bit configuration of the original part. This distinction affects circuit-level integration and output pin utilization.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC4017PWR is available as an active product from Texas Instruments, providing supply chain continuity for the obsolete 74HC160DB,118. Both parts maintain ROHS3 compliance and EAR99 classification, satisfying regulatory requirements for equivalent substitution.

Key considerations for selection:

• Bit Width Difference: The substitute provides 10-bit output capability compared to the 4-bit original. Circuit designs utilizing only 4-bit counting functionality can accommodate this difference through selective output pin usage.
• Count Rate: The substitute operates at 35 MHz maximum versus 66 MHz for the original part. Applications requiring the full 66 MHz performance specification cannot use this substitute.
• Package Dimensions: The 16-TSSOP package (4.40mm width) is narrower than the 16-SSOP package (5.30mm width). PCB layout modifications may be required for footprint compatibility.
• Temperature Range: The substitute supports -55°C to 125°C operation, extending the lower temperature limit by 15°C compared to the original -40°C specification.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC4017PWR directly replace the 74HC160DB,118 in existing designs?

A: Direct replacement requires evaluation of three factors: (1) whether the application uses only 4-bit counting outputs, (2) whether the 35 MHz count rate meets performance requirements, and (3) whether PCB footprint modifications are acceptable for the narrower 16-TSSOP package.

Q: What is the functional difference between 4-bit and 10-bit counter configurations?

A: The 74HC160DB,118 provides four output pins for binary counting states (0-15). The CD74HC4017PWR provides ten decoded output pins (0-9), each representing a specific decade count state. Circuit integration differs accordingly.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the 74HC160DB,118 and CD74HC4017PWR are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes.

Q: Does the extended temperature range of the substitute provide additional design flexibility?

A: The CD74HC4017PWR supports operation to -55°C, compared to -40°C for the original part. This extended range is available if required by application specifications, though the upper temperature limit remains identical at 125°C.

Q: What package considerations apply to substitution?

A: The original 16-SSOP package (5.30mm width) differs from the substitute 16-TSSOP package (4.40mm width). PCB footprint redesign is necessary for physical compatibility, though both are 16-pin surface mount configurations with identical pin counts.