CDC2536DBRG4 Equivalent & Substitute Parts

Part Overview

The CDC2536DBRG4 is a PLL Clock Driver IC manufactured by Texas Instruments, designed for clock distribution and timing applications requiring up to 100MHz frequency operation. This device features a 1:6 input-to-output ratio with integrated divider and multiplier functionality, operating from a 3V to 3.6V supply. The part is discontinued at DiGi Electronics, making identification of compatible substitutes essential for ongoing design support and procurement.

Substiute Parts

CDC2536DBRG4

Texas InstrumentsIn Stock: 851CDC2536DBRG4 Datasheet

Current PartRFQ

CDC2536DBR

Texas InstrumentsIn Stock: 17303CDC2536DBR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CDC2536DBRG4 is determined by strict equivalence across the following critical parameters:

• Base Product Number: CDC2536 (core silicon functionality)
• Package Type: 28-SSOP (0.209", 5.30mm Width) — mechanical and electrical compatibility
• Electrical Specifications: LVTTL input/output, 1:6 ratio, 100MHz maximum frequency, 3V–3.6V supply
• Functional Features: PLL with bypass, integrated divider/multiplier
• Compliance: ROHS3 Compliant, REACH Unaffected

The primary difference between the main part and its substitute lies in packaging configuration (tube vs. tape & reel) and product status (discontinued vs. active). The electrical and functional characteristics remain identical.

Parameter Comparison

Engineering Selection Recommendations

The CDC2536DBR is a direct functional equivalent to the CDC2536DBRG4. Both parts share identical electrical specifications, pinout, and performance characteristics. The CDC2536DBR is the recommended substitute due to its active product status and significantly higher inventory availability (17,292 units vs. 750 units).

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The packaging difference (tape & reel vs. tube) does not affect electrical performance and is a procurement consideration only. Designs currently using CDC2536DBRG4 can transition to CDC2536DBR without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Are CDC2536DBRG4 and CDC2536DBR electrically identical?

A: Yes. Both parts are based on the same CDC2536 silicon, with identical electrical specifications, pinout, frequency range (100MHz), supply voltage (3V–3.6V), input/output logic levels (LVTTL), and 1:6 ratio configuration.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging configuration. CDC2536DBRG4 is supplied in tube packaging, while CDC2536DBR is supplied in tape & reel (TR) format. This affects procurement and handling but does not impact electrical performance or PCB assembly compatibility.

Q: Can I use CDC2536DBR as a direct replacement in my design?

A: Yes. The CDC2536DBR is a direct substitute. No circuit changes, PCB modifications, or design re-qualification are required. The 28-SSOP package dimensions and pinout are identical.

Q: Why is CDC2536DBRG4 discontinued?

A: The base product CDC2536 remains in production. The specific packaging variant (CDC2536DBRG4) has been discontinued at DiGi Electronics. The active equivalent CDC2536DBR provides the same functionality with better availability.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status. There are no differences in environmental or regulatory certifications.

Q: What is the inventory situation for these parts?

A: CDC2536DBRG4 has limited stock (750 units). CDC2536DBR is actively produced with significantly higher availability (17,292 units), making it the preferred choice for new designs and ongoing production.