SN74F163AD Equivalent & Substitute Parts

Part Overview

The SN74F163AD is a 4-bit binary counter IC manufactured by Texas Instruments, designed for synchronous counting applications with a maximum count rate of 100 MHz. This component features positive edge triggering, synchronous reset, and operates across a supply voltage range of 4.5 V to 5.5 V. The device is currently in Last Time Buy status, indicating discontinued production with limited inventory availability. Identifying equivalent substitute parts is essential for design continuity, long-term supply chain planning, and ensuring project viability beyond the Last Time Buy window.

Substiute Parts

SN74F163AD

Texas InstrumentsIn Stock: 2141SN74F163AD Datasheet

Current PartRFQ

SN74F163ADR

Texas InstrumentsIn Stock: 8780SN74F163ADR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F163AD is determined by strict equivalence across the following critical parameters:

• Logic Function: Binary counter with identical 4-bit architecture and up-counting direction
• Electrical Characteristics: Synchronous reset, synchronous timing, positive edge trigger, and 100 MHz count rate
• Supply Voltage: 4.5 V to 5.5 V operating range
• Package Compatibility: 16-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm width)
• Compliance Standards: ROHS3 compliance and REACH unaffected status

The SN74F163ADR qualifies as a direct substitute based on identical electrical specifications, functional characteristics, and package configuration. The only distinction is the packaging format: the main part uses Tube packaging, while the substitute uses Tape & Reel (TR) format. Both formats contain the same die and are functionally interchangeable at the component level.

Parameter Comparison

Engineering Selection Recommendations

The SN74F163ADR is the direct substitute for the SN74F163AD. Both components are manufactured by Texas Instruments with identical electrical specifications, functional characteristics, and package dimensions. The SN74F163ADR maintains Active product status with higher inventory availability (8681 Pcs), compared to the Last Time Buy status of the SN74F163AD (2100 Pcs). Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

The primary distinction is packaging format: Tube versus Tape & Reel. This difference does not affect component functionality or electrical performance. Selection between these variants depends on assembly process requirements and procurement logistics rather than technical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SN74F163ADR directly replace the SN74F163AD in existing designs?

A: Yes. The SN74F163ADR is electrically and functionally identical to the SN74F163AD. Both components share the same 16-SOIC package dimensions, supply voltage range (4.5 V to 5.5 V), count rate (100 MHz), and all functional characteristics including synchronous reset and positive edge triggering.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube and Tape & Reel are packaging and delivery formats only. They contain identical components with the same electrical specifications and performance. Tube packaging is typically used for lower-volume orders or manual assembly, while Tape & Reel format is optimized for automated pick-and-place assembly processes. The choice depends on manufacturing requirements, not component functionality.

Q: Why is the SN74F163AD in Last Time Buy status?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. Customers are advised to transition to active alternatives. The SN74F163ADR, with identical specifications and Active status, is the recommended path forward for continued supply chain access.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74F163AD and SN74F163ADR maintain identical ROHS3 compliance and REACH unaffected status. Regulatory and environmental certifications are equivalent across both part numbers.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: 4-bit binary counter architecture, up-counting direction, synchronous reset and timing, positive edge triggering, 100 MHz count rate, 4.5 V to 5.5 V supply voltage, 0°C to 70°C operating temperature range, and 16-SOIC package configuration. Any deviation in these parameters would require re-evaluation of compatibility.