PI6C180BVE Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The PI6C180BVE is a clock fanout buffer (distribution) IC manufactured by Diodes Incorporated, designed for 1:18 clock distribution applications with a maximum frequency of 140 MHz. This component features TTL input/output compatibility and operates within a supply voltage range of 3.135V to 3.465V. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

PI6C180BVE

Diodes IncorporatedIn Stock: 784PI6C180BVE Datasheet

Current PartRFQ

CDC318ADL

Texas InstrumentsIn Stock: 1362CDC318ADL Datasheet

MFR RecommendedRFQ

CDC318ADLR

Texas InstrumentsIn Stock: 1562CDC318ADLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PI6C180BVE are identified based on the following critical parameters that determine functional equivalence:

• Fanout Ratio (1:18): Both substitute parts maintain the identical 1:18 input-to-output distribution ratio, ensuring equivalent clock distribution capability.
• Package Type (48-BSSOP): All parts use the same 48-BSSOP surface mount package with identical physical dimensions (0.295", 7.50mm Width), enabling direct PCB footprint compatibility.
• Supply Voltage Range (3.135V ~ 3.465V): Substitute parts operate within the same supply voltage specification, ensuring compatibility with existing power delivery systems.
• Operating Temperature Range (0°C ~ 70°C): Identical temperature operating range across all parts.
• Logic Compatibility: Substitute parts support TTL output compatibility with the original part, with additional LVTTL input support providing enhanced flexibility.
• Non-Differential Architecture: All parts maintain single-ended (non-differential) input and output configuration.

The primary technical difference is the maximum frequency specification: the PI6C180BVE operates at 140 MHz, while substitute parts operate at 100 MHz. This represents a reduction in maximum operating frequency but does not affect substitution validity for applications operating below 100 MHz.

Parameter Comparison

Engineering Selection Recommendations

Both CDC318ADL and CDC318ADLR are active, production-status alternatives to the obsolete PI6C180BVE. Both substitute parts are manufactured by Texas Instruments and maintain full ROHS3 compliance and REACH unaffected status, consistent with the original part's regulatory certifications.

The CDC318ADL is supplied in tube packaging, while the CDC318ADLR is supplied in cut tape and Digi-Reel® formats. Selection between these two variants depends on procurement and assembly requirements rather than functional performance.

The maximum frequency reduction from 140 MHz to 100 MHz is the only functional parameter change. Applications requiring clock distribution at frequencies below 100 MHz can implement either substitute part without functional limitation. Applications requiring operation above 100 MHz cannot use these substitutes.

Frequently Asked Questions (FAQ)

Q: Can CDC318ADL or CDC318ADLR be used as direct replacements for PI6C180BVE?

A: Yes, for applications operating at clock frequencies of 100 MHz or below. Both substitute parts maintain identical 1:18 fanout ratio, package dimensions, supply voltage range, and operating temperature specifications. The 48-BSSOP package footprint is identical, enabling direct PCB substitution.

Q: What is the impact of the 40 MHz frequency reduction (140 MHz to 100 MHz)?

A: The frequency reduction affects only the maximum operating specification. Applications using clock frequencies at or below 100 MHz experience no functional impact. Applications requiring operation above 100 MHz cannot use these substitute parts.

Q: Are there differences in logic level compatibility?

A: The PI6C180BVE accepts TTL input exclusively. The CDC318ADL and CDC318ADLR accept LVTTL input, providing broader input compatibility. Both substitute parts support TTL output, maintaining compatibility with TTL-based downstream logic.

Q: What is the difference between CDC318ADL and CDC318ADLR?

A: Both parts are functionally identical. The difference is packaging format: CDC318ADL is supplied in tube packaging, while CDC318ADLR is supplied in cut tape and Digi-Reel® formats. Selection depends on assembly line requirements and procurement preferences.

Q: Are moisture sensitivity levels compatible?

A: The PI6C180BVE has MSL 1 (unlimited shelf life), while both substitute parts have MSL 2 (1-year shelf life). This represents a more stringent moisture handling requirement for the substitute parts. Storage and handling procedures must comply with MSL 2 specifications.

Q: Do all parts meet the same regulatory standards?

A: Yes. The PI6C180BVE, CDC318ADL, and CDC318ADLR are all ROHS3 compliant and REACH unaffected, ensuring equivalent regulatory compliance across all three parts.