PI6C2509-133LE Equivalent & Substitute Parts

Part Overview

The PI6C2509-133LE 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/output logic levels and a supply voltage range of 3V to 3.6V. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

PI6C2509-133LE

Diodes IncorporatedIn Stock: 2170PI6C2509-133LE Datasheet

Current PartRFQ

CDC509PWR

Texas InstrumentsIn Stock: 18292CDC509PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI6C2509-133LE is determined by the following critical parameters that must remain consistent:

Package compatibility: Both parts must use the 24-TSSOP form factor to ensure direct PCB footprint compatibility without layout modifications.

Functional specifications: Input-to-output ratio of 1:9, single circuit configuration, and PLL with bypass capability must be maintained.

Electrical characteristics: Supply voltage range of 3V to 3.6V, operating temperature range of 0°C to 70°C, and logic level compatibility are mandatory for system integration.

Frequency performance: The substitute must support the maximum frequency requirements of the application. The PI6C2509-133LE operates at 150MHz maximum; substitutes operating at lower maximum frequencies remain compatible if the application does not exceed the substitute's frequency specification.

Compliance and certifications: RoHS3 compliance and MSL rating of 1 ensure environmental and manufacturing process compatibility.

The CDC509PWR from Texas Instruments meets all these substitution criteria and is classified as an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The CDC509PWR is the manufacturer-recommended substitute for the PI6C2509-133LE. Both devices share identical package geometry, supply voltage specifications, operating temperature range, and functional configuration. The CDC509PWR is currently in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete PI6C2509-133LE.

The primary difference between these parts is the maximum frequency specification: the PI6C2509-133LE supports 150MHz while the CDC509PWR supports 125MHz. Applications operating at or below 125MHz will experience no functional impact. Applications requiring operation above 125MHz must evaluate whether the reduced frequency ceiling of the CDC509PWR is acceptable for the intended use case.

The logic level difference (CMOS versus LVTTL) reflects different input and output signal specifications. Both are compatible with 3V to 3.6V supply operation. System-level signal integrity analysis is required to confirm that LVTTL output levels from the CDC509PWR meet the input requirements of downstream components designed for CMOS levels.

Both parts maintain ROHS3 compliance and MSL rating of 1, ensuring compatibility with standard manufacturing and storage processes.

Frequently Asked Questions (FAQ)

Q: Can the CDC509PWR directly replace the PI6C2509-133LE without PCB modifications?

A: Yes, both devices use the identical 24-TSSOP package with matching pin assignments. No PCB layout changes are required for physical substitution.

Q: What is the impact of the 125MHz maximum frequency on the CDC509PWR compared to the 150MHz specification of the PI6C2509-133LE?

A: The CDC509PWR is suitable for applications operating at clock frequencies of 125MHz or lower. If your system requires operation above 125MHz, the CDC509PWR cannot be used. Verify your application's maximum clock frequency requirement before selecting this substitute.

Q: Are there compatibility concerns with the LVTTL output of the CDC509PWR replacing the CMOS output of the PI6C2509-133LE?

A: LVTTL and CMOS logic levels operate within the same 3V to 3.6V supply range. Compatibility depends on the input specifications of the components receiving the clock signal. Confirm that downstream devices accept LVTTL signal levels. Signal integrity analysis may be required for critical timing paths.

Q: Is the CDC509PWR available in the same packaging format?

A: Yes, the CDC509PWR is supplied in 24-TSSOP packaging with identical dimensions (0.173", 4.40mm Width). Tape & Reel packaging is available for production quantities.

Q: What is the product status difference between these two parts?

A: The PI6C2509-133LE is classified as obsolete, indicating discontinued manufacturing and limited availability. The CDC509PWR is an active product with ongoing production and supply chain support from Texas Instruments, making it the preferred choice for new designs and long-term system support.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes, both the PI6C2509-133LE and CDC509PWR are ROHS3 compliant with MSL rating of 1 (Unlimited). Both meet REACH requirements and carry the same ECCN and HTSUS classifications.