CD74HCT163M Equivalent & Substitute Parts

Part Overview

The CD74HCT163M is a 4-bit binary counter IC manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This synchronous counter operates at a maximum count rate of 20 MHz with positive edge triggering and supports supply voltages from 4.5 V to 5.5 V across an operating temperature range of -55°C to 125°C. The device features synchronous reset and is compliant with ROHS3 and REACH standards. Currently listed as Last Time Buy status, identifying substitute parts with equivalent electrical and mechanical specifications is essential for design continuity and long-term component availability.

Substiute Parts

CD74HCT163M

Texas InstrumentsIn Stock: 2359CD74HCT163M Datasheet

Current PartRFQ

CD74HCT163M96

Texas InstrumentsIn Stock: 5456CD74HCT163M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HCT163M is determined by strict equivalence across the following critical parameters:

• Logic Function: Binary counter with 4-bit capacity, 1 element configuration
• Electrical Characteristics: Synchronous operation with positive edge triggering, 20 MHz count rate capability
• Supply Voltage: 4.5 V to 5.5 V operating range
• Temperature Range: -55°C to 125°C operational limits
• Package Specification: 16-SOIC surface mount package with 0.154" (3.90mm) width
• Regulatory Compliance: ROHS3 and REACH compliance status

The CD74HCT163M96 qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is packaging format: the main part is supplied in Tube packaging, while the substitute is supplied in Tape & Reel (TR) format. Both maintain the same 16-SOIC physical footprint and electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The CD74HCT163M96 is a direct functional and electrical equivalent to the CD74HCT163M. Both parts are manufactured by Texas Instruments and maintain identical electrical performance specifications, operating parameters, and regulatory compliance certifications. The CD74HCT163M96 carries Active product status, providing superior long-term availability compared to the Last Time Buy status of the main part. The packaging format difference (Tape & Reel versus Tube) does not affect electrical compatibility or PCB-level performance. Selection between these parts should be based on procurement requirements: Tape & Reel packaging is standard for automated assembly processes, while Tube packaging is suitable for manual handling and lower-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT163M96 be used as a direct replacement for the CD74HCT163M in existing designs?

A: Yes. Both parts are electrically and functionally identical. The 16-SOIC package footprint is identical, and all electrical specifications match precisely. The only difference is the supply packaging format.

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

A: Tube packaging is used for manual component handling and lower-volume assembly. Tape & Reel packaging is designed for automated pick-and-place assembly equipment. The physical component and electrical performance are identical; the difference is in how units are supplied and handled during manufacturing.

Q: Why is the CD74HCT163M listed as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments is discontinuing this specific packaging configuration. The CD74HCT163M96 in Tape & Reel format remains in Active status and represents the ongoing production variant of this counter IC.

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

A: No. Both parts maintain identical ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings.

Q: What is the maximum count rate for both parts?

A: Both the CD74HCT163M and CD74HCT163M96 support a maximum count rate of 20 MHz with positive edge triggering.

Q: Do both parts support the same supply voltage range?

A: Yes. Both parts operate across the identical supply voltage range of 4.5 V to 5.5 V and maintain the same operating temperature range of -55°C to 125°C.