IDT49FCT806SO Equivalent & Substitute Parts

Part Overview

The IDT49FCT806SO is a Clock Fanout Buffer (Distribution) IC manufactured by Renesas Electronics Corporation, designed for 1:5 clock distribution applications. This integrated circuit features 2 circuits with CMOS and LVTTL input/output compatibility, operating within a 4.75V to 5.25V supply voltage range. The device is packaged in a 20-SOIC (0.295", 7.50mm Width) surface mount configuration.

The IDT49FCT806SO is classified as an obsolete product. Locating equivalent or substitute parts becomes necessary when original inventory is depleted or when system redesigns require component sourcing from current manufacturing availability.

Substiute Parts

IDT49FCT806SO

Renesas Electronics CorporationIn Stock: 2402IDT49FCT806SO Datasheet

Current PartRFQ

49FCT806SOG

Renesas Electronics CorporationIn Stock: 111049FCT806SOG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the IDT49FCT806SO is determined by strict equivalence across the following critical parameters:

• Fanout Buffer Function: Type must be Fanout Buffer (Distribution)
• Circuit Count: 2 circuits required
• Distribution Ratio: 1:5 input-to-output ratio
• Logic Compatibility: CMOS and LVTTL input/output support
• Supply Voltage: 4.75V ~ 5.25V operating range
• Operating Temperature: 0°C ~ 70°C range
• Package Specification: 20-SOIC (0.295", 7.50mm Width) surface mount
• Electrical Characteristics: Differential input/output configuration (No/No)

The substitute part 49FCT806SOG meets all these parameters identically, with the only difference being packaging format (Tube versus standard packaging).

Parameter Comparison

Engineering Selection Recommendations

Both the IDT49FCT806SO and 49FCT806SOG are classified as obsolete products manufactured by Renesas Electronics Corporation. Selection between these parts should be based on packaging and inventory requirements rather than electrical performance, as both devices are electrically and mechanically identical.

The 49FCT806SOG variant offers tube packaging, which may be advantageous for automated assembly processes or specific inventory management protocols. Both parts maintain identical RoHS non-compliance status and REACH unaffected classification, making them suitable for applications where legacy component specifications are required.

Inventory availability should be the primary consideration: IDT49FCT806SO has 2360 pieces in stock, while 49FCT806SOG has 1055 pieces available.

Frequently Asked Questions (FAQ)

Q: Are IDT49FCT806SO and 49FCT806SOG electrically interchangeable?

A: Yes. Both parts are electrically identical, featuring the same 1:5 fanout buffer configuration, 2-circuit design, CMOS/LVTTL logic compatibility, and 4.75V to 5.25V supply voltage specification. The only difference is packaging format (standard versus tube).

Q: What does the packaging difference between these parts mean for PCB assembly?

A: The IDT49FCT806SO uses standard packaging while the 49FCT806SOG uses tube packaging. Both are 20-SOIC surface mount packages with identical physical dimensions (0.295", 7.50mm Width). Tube packaging may require different handling in automated pick-and-place systems but does not affect electrical performance or PCB footprint compatibility.

Q: Can these parts be used in new designs?

A: Both parts are classified as obsolete. While they remain available in current inventory, they are no longer in active production. New designs should evaluate current-generation clock distribution buffers from Renesas Electronics Corporation or alternative manufacturers.

Q: Are there any compliance differences between these substitute parts?

A: No. Both parts share identical RoHS non-compliance status, REACH unaffected classification, and moisture sensitivity level (MSL 1 - Unlimited). Compliance characteristics are equivalent across both variants.

Q: What is the significance of the 1:5 ratio specification?

A: The 1:5 ratio indicates that each of the 2 circuits accepts one clock input signal and distributes it to 5 output lines, providing fanout capability for clock distribution applications requiring multiple synchronized outputs from a single input source.