PI5C3245S Equivalent & Substitute Parts

Part Overview

The PI5C3245S is an 8x1:1 bus switch logic IC manufactured by Diodes Incorporated in a 20-SOIC surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The PI5C3245S operates on single supply voltage (4.75V to 5.25V) with an operating temperature range of -40°C to 85°C. Substitute parts must maintain identical circuit configuration, package form factor, and electrical operating parameters to ensure direct compatibility in existing designs.

Key Parameters

Parameter	Specification
Type	Bus Switch
Circuit Configuration	8 x 1:1
Independent Circuits	1
Voltage Supply Source	Single Supply
Voltage - Supply Range	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	20-SOIC (0.295", 7.50mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PI5C3245S is determined by strict adherence to the following parameters:

Circuit Type & Configuration: All substitutes must be 8x1:1 bus switches with 1 independent circuit
Package Form Factor: All substitutes must use 20-SOIC (0.295", 7.50mm Width) surface mount packaging
Voltage Supply: Single supply operation within compatible voltage ranges
Operating Temperature Range: -40°C to 85°C minimum
Moisture Sensitivity Level: MSL 1 (Unlimited)
Mounting Technology: Surface mount only

The substitute parts identified are grouped into two manufacturer families: Renesas Electronics Corporation (QS3245 series) and Texas Instruments (74CBT3245 series). Both families meet all mandatory electrical and mechanical parameters for direct substitution. Packaging variants (Tube, Cut Tape, Tape & Reel) do not affect electrical compatibility but may influence procurement and handling requirements.

Parameter Comparison

Part Number	Manufacturer	Circuit	Voltage Supply	Operating Temp	Package	Product Status	RoHS Status	Packaging Type
PI5C3245S	Diodes Incorporated	8 x 1:1	4.75V ~ 5.25V	-40°C ~ 85°C	20-SOIC	Obsolete	RoHS Non-Compliant	-
QS3245SOG	Renesas Electronics	8 x 1:1	4.75V ~ 5.25V	-40°C ~ 85°C	20-SOIC	Active	ROHS3 Compliant	Tube
QS3245SOG8	Renesas Electronics	8 x 1:1	4.75V ~ 5.25V	-40°C ~ 85°C	20-SOIC	Active	ROHS3 Compliant	Cut Tape (CT)
SN74CBT3245ADW	Texas Instruments	8 x 1:1	4V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Last Time Buy	ROHS3 Compliant	Tube
SN74CBT3245ADWR	Texas Instruments	8 x 1:1	4V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Last Time Buy	ROHS3 Compliant	Tape & Reel (TR)
SN74CBT3245CDW	Texas Instruments	8 x 1:1	4V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	ROHS3 Compliant	Tube
SN74CBT3245CDWR	Texas Instruments	8 x 1:1	4V ~ 5.5V	-40°C ~ 85°C	20-SOIC	Active	ROHS3 Compliant	Tape & Reel (TR)

Engineering Selection Recommendations

Renesas QS3245 Series (QS3245SOG, QS3245SOG8): Both variants are active products with ROHS3 compliance. These parts maintain identical voltage supply specifications (4.75V ~ 5.25V) to the original PI5C3245S. Selection between QS3245SOG (Tube) and QS3245SOG8 (Cut Tape) depends on procurement volume and handling requirements. Both are suitable for new designs and production continuity.

Texas Instruments 74CBT3245 Series (SN74CBT3245ADW, SN74CBT3245ADWR, SN74CBT3245CDW, SN74CBT3245CDWR): All four variants are ROHS3 compliant with extended voltage supply range (4V ~ 5.5V), providing broader operational margin. SN74CBT3245CDW and SN74CBT3245CDWR are active products and represent the preferred long-term solution. SN74CBT3245ADW and SN74CBT3245ADWR are Last Time Buy status, suitable for near-term requirements but not recommended for new long-term designs. Selection between Tube and Tape & Reel packaging variants depends on production volume and assembly line requirements.

Frequently Asked Questions (FAQ)

Q: Can QS3245SOG and QS3245SOG8 be used interchangeably with PI5C3245S? A: Yes. Both Renesas variants maintain identical electrical specifications (8x1:1 circuit, 4.75V ~ 5.25V supply, -40°C ~ 85°C operating range) and 20-SOIC package form factor. The difference is packaging type (Tube vs. Cut Tape), which does not affect electrical compatibility.

Q: What is the voltage supply difference between Renesas and Texas Instruments substitutes? A: Renesas QS3245 series operates at 4.75V ~ 5.25V, matching the original PI5C3245S specification. Texas Instruments 74CBT3245 series operates at 4V ~ 5.5V, providing a wider voltage margin. Both ranges are compatible with standard 5V logic supply systems.

Q: Why are some Texas Instruments parts marked "Last Time Buy"? A: SN74CBT3245ADW and SN74CBT3245ADWR are in Last Time Buy status, indicating limited future availability. For new designs requiring long-term production support, SN74CBT3245CDW or SN74CBT3245CDWR (Active status) are recommended.

Q: Does packaging type (Tube, Cut Tape, Tape & Reel) affect electrical performance? A: No. Packaging type affects only procurement, storage, and assembly line handling. Electrical specifications and performance are identical across all packaging variants of the same part number base.

Q: Are all substitute parts RoHS compliant? A: All identified substitutes are ROHS3 compliant. The original PI5C3245S is RoHS non-compliant. If RoHS compliance is required for your application, any of the substitute parts satisfy this requirement.

Q: Can I mix substitute parts from different manufacturers in the same design? A: Yes. All identified substitutes meet identical electrical and mechanical specifications for the 8x1:1 bus switch function in 20-SOIC packaging. Cross-manufacturer substitution is electrically valid.

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