PI6C2509-133LEX Equivalent & Substitute Parts

Part Overview

The PI6C2509-133LEX is a PLL Clock Driver IC manufactured by Diodes Incorporated, designed for clock distribution and timing applications requiring a 1:9 input-to-output ratio. This device operates at a maximum frequency of 150MHz with CMOS input and output logic levels, housed in a 24-TSSOP surface mount package.

The PI6C2509-133LEX is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this clock driver architecture.

Substiute Parts

PI6C2509-133LEX

Diodes IncorporatedIn Stock: 8184PI6C2509-133LEX Datasheet

Current PartRFQ

CDC509PWR

Texas InstrumentsIn Stock: 18292CDC509PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI6C2509-133LEX is determined by the following critical parameters that must remain consistent across equivalent parts:

• Package / Case: 24-TSSOP (0.173", 4.40mm Width) — ensures mechanical and electrical compatibility with existing PCB layouts
• Input:Output Ratio: 1:9 — maintains functional equivalence for clock distribution architecture
• Supply Voltage Range: 3V ~ 3.6V — ensures compatibility with power delivery systems
• Mounting Type: Surface Mount — preserves assembly process compatibility
• Number of Circuits: 1 — maintains single-channel clock driver functionality
• PLL with Bypass: Yes — preserves phase-locked loop and bypass mode capabilities
• RoHS Compliance: ROHS3 Compliant — ensures regulatory and environmental compliance

The CDC509PWR from Texas Instruments meets all critical substitution criteria. While the maximum frequency specification differs (125MHz versus 150MHz), this represents a conservative operational envelope suitable for applications within the 125MHz frequency range.

Parameter Comparison

Engineering Selection Recommendations

The CDC509PWR is the manufacturer-recommended substitute for the obsolete PI6C2509-133LEX. Both devices maintain identical package geometry, pin configuration, and functional architecture, enabling direct replacement in existing designs.

The CDC509PWR offers the advantage of active product status from Texas Instruments, ensuring continued availability and supply chain support. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, satisfying regulatory and environmental requirements.

The logic level difference (CMOS input/output on the PI6C2509-133LEX versus LVTTL on the CDC509PWR) is compatible within the specified 3V ~ 3.6V supply voltage range. The reduced maximum frequency specification of the CDC509PWR (125MHz versus 150MHz) does not impact applications operating below 125MHz.

Frequently Asked Questions (FAQ)

Q: Can the CDC509PWR directly replace the PI6C2509-133LEX on existing PCBs?

A: Yes. Both devices use identical 24-TSSOP packaging with matching pin configurations and footprints. No PCB modifications are required.

Q: What is the significance of the logic level difference between CMOS and LVTTL?

A: Both logic families operate within the 3V ~ 3.6V supply voltage range specified for these devices. LVTTL is a subset of CMOS logic compatibility at these voltage levels, making the CDC509PWR functionally compatible with existing signal conditioning circuits.

Q: Does the 125MHz maximum frequency of the CDC509PWR limit its use?

A: The CDC509PWR is suitable for applications operating at or below 125MHz. If your design requires operation above 125MHz, the CDC509PWR is not appropriate for substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both the PI6C2509-133LEX and CDC509PWR are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited).

Q: What is the packaging format for the CDC509PWR?

A: The CDC509PWR is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations.