PI6C182BHE Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The PI6C182BHE is a Clock Fanout Buffer (Distribution) IC manufactured by Diodes Incorporated, designed for 1:10 clock distribution at 140 MHz maximum frequency. This component operates with TTL input/output logic levels and 3.135V to 3.465V supply voltage in a 28-SSOP surface mount package.

The PI6C182BHE is classified as Obsolete. Equivalent substitute parts are necessary for new designs, production continuity, and system upgrades where the original component is no longer available from primary sources.

Substiute Parts

PI6C182BHE

Diodes IncorporatedIn Stock: 1062PI6C182BHE Datasheet

Current PartRFQ

CDC319DB

Texas InstrumentsIn Stock: 1309CDC319DB Datasheet

MFR RecommendedRFQ

CDC319DBR

Texas InstrumentsIn Stock: 5656CDC319DBR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PI6C182BHE are qualified based on the following critical parameters that determine functional compatibility:

Matching Parameters (Required for Substitution):

• Type: Fanout Buffer (Distribution)
• Number of Circuits: 1
• Ratio - Input:Output: 1:10
• Differential - Input:Output: No/No
• Package / Case: 28-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount
• Voltage - Supply: 3.135V ~ 3.465V

Allowable Variations:

• Frequency - Max: Substitute parts operating at 100 MHz are acceptable for applications where the original 140 MHz specification exceeds system requirements
• Input/Output Logic Levels: LVTTL input with TTL output compatibility satisfies TTL-level systems
• Operating Temperature Range: Substitute parts with narrower temperature ranges (0°C ~ 70°C) are acceptable for applications within this reduced range
• Product Status: Active substitute parts provide ongoing availability and support

The CDC319DB and CDC319DBR from Texas Instruments meet all matching parameters and allowable variation criteria.

Parameter Comparison

Engineering Selection Recommendations

Both CDC319DB and CDC319DBR are Active products from Texas Instruments and provide direct functional substitution for the obsolete PI6C182BHE. Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards.

The primary distinction between the two substitute options is packaging format: CDC319DB is supplied in bulk packaging, while CDC319DBR is supplied in Tape & Reel format. Selection between these variants depends on production volume and assembly line requirements.

The maximum frequency specification difference (140 MHz original versus 100 MHz substitutes) is acceptable for applications operating below 100 MHz. Systems requiring operation above 100 MHz require alternative component selection outside this substitute group.

The operating temperature range reduction (from -40°C ~ 85°C to 0°C ~ 70°C) applies only to the substitute parts and must be evaluated against specific application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can CDC319DB or CDC319DBR directly replace PI6C182BHE in existing designs?

A: Yes, both CDC319DB and CDC319DBR are direct functional replacements for the PI6C182BHE in the 28-SSOP package. Pin configuration, supply voltage range, and 1:10 distribution ratio are identical. No PCB redesign is required.

Q: What is the impact of the 100 MHz maximum frequency specification on CDC319 substitutes compared to the 140 MHz PI6C182BHE?

A: The CDC319 series operates at a maximum of 100 MHz. This specification is acceptable for applications operating at or below 100 MHz. Applications requiring operation above 100 MHz cannot use these substitute parts.

Q: Are there differences between CDC319DB and CDC319DBR?

A: CDC319DB and CDC319DBR are electrically identical. The difference is packaging format: CDC319DB is supplied in bulk, while CDC319DBR is supplied in Tape & Reel format. Selection depends on production volume and assembly automation requirements.

Q: What is the operating temperature range difference, and does it affect substitution?

A: The PI6C182BHE operates from -40°C to 85°C, while CDC319DB and CDC319DBR operate from 0°C to 70°C. Substitution is valid only for applications operating within the 0°C to 70°C range. Applications requiring extended temperature operation below 0°C or above 70°C cannot use these substitutes.

Q: Are the logic level specifications compatible between PI6C182BHE and CDC319 parts?

A: Yes. The PI6C182BHE specifies TTL input and output. The CDC319 series specifies LVTTL input with LVTTL and TTL output capability. LVTTL is a subset of TTL logic levels and is compatible with TTL systems.

Q: Do all three parts meet current environmental and compliance standards?

A: Yes. The PI6C182BHE, CDC319DB, and CDC319DBR are all ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current manufacturing and environmental requirements.