PI3C3245Q Equivalent & Substitute Parts

Part Overview

The PI3C3245Q is an 8 x 1:1 bus switch logic IC manufactured by Diodes Incorporated in a 20-QSOP surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates with a single supply voltage between 2.3V and 3.6V and supports operating temperatures from -40°C to 85°C. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability.

Key Parameters

Parameter	Specification
Type	Bus Switch
Circuit Configuration	8 x 1:1
Independent Circuits	1
Voltage Supply Source	Single Supply
Voltage - Supply Range	2.3V ~ 3.6V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	20-SSOP (0.154", 3.90mm Width)

Substitute Part Grouping Explanation

Substitute parts for the PI3C3245Q are qualified based on the following critical parameters:

Circuit Type & Configuration: All substitutes must be 8 x 1:1 bus switches with single independent circuit
Voltage Supply Range: Operating voltage must be 2.3V ~ 3.6V
Temperature Range: Operating temperature must span -40°C ~ 85°C
Package Compatibility: All substitutes must use 20-SSOP (0.154", 3.90mm Width) surface mount packaging
Functional Equivalence: All parts must perform identical bus switching logic functions

The following parts meet these substitution criteria:

PI3C3245QE (Diodes Incorporated) - Direct manufacturer variant with improved RoHS compliance
SN74CB3T3245DBQR (Texas Instruments) - Active product with equivalent specifications
SN74CBTLV3245ADBQR (Texas Instruments) - Manufacturer-recommended substitute with active product status

Parameter Comparison

Parameter	PI3C3245Q	PI3C3245QE	SN74CB3T3245DBQR	SN74CBTLV3245ADBQR
Manufacturer	Diodes Incorporated	Diodes Incorporated	Texas Instruments	Texas Instruments
Type	Bus Switch	Bus Switch	Bus Switch	Bus Switch
Circuit Configuration	8 x 1:1	8 x 1:1	8 x 1:1	8 x 1:1
Independent Circuits	1	1	1	1
Voltage Supply Range	2.3V ~ 3.6V	2.3V ~ 3.6V	2.3V ~ 3.6V	2.3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	20-SSOP (0.154", 3.90mm Width)	20-SSOP (0.154", 3.90mm Width)	20-SSOP (0.154", 3.90mm Width)	20-SSOP (0.154", 3.90mm Width)
Product Status	Obsolete	Last Time Buy	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

For New Designs: SN74CBTLV3245ADBQR is the preferred substitute. This part carries active product status from Texas Instruments, ensuring long-term availability and supply chain stability. It meets ROHS3 compliance requirements and maintains full electrical and mechanical compatibility with the PI3C3245Q.

For Existing Inventory Replacement: SN74CB3T3245DBQR provides an alternative active product option from Texas Instruments with identical functional specifications. Both Texas Instruments substitutes offer superior product lifecycle status compared to the obsolete PI3C3245Q.

For Diodes Incorporated Continuity: PI3C3245QE serves as the direct manufacturer equivalent, offering improved RoHS compliance while maintaining the same electrical characteristics. This option is suitable for designs requiring manufacturer consistency, though it carries Last Time Buy status.

All three substitute parts are electrically and mechanically interchangeable with the PI3C3245Q based on the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can PI3C3245QE be used as a direct replacement for PI3C3245Q?

A: Yes. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications, voltage supply range (2.3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 20-SSOP package configuration. The primary difference is improved RoHS3 compliance in the QE variant.

Q: Are the Texas Instruments parts (SN74CB3T3245DBQR and SN74CBTLV3245ADBQR) pin-compatible with PI3C3245Q?

A: Yes. Both Texas Instruments parts maintain the same 8 x 1:1 bus switch configuration, single supply voltage range (2.3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 20-SSOP package footprint. They are direct functional equivalents.

Q: What is the difference between SN74CB3T3245DBQR and SN74CBTLV3245ADBQR?

A: Both parts are Texas Instruments bus switches with identical electrical specifications and package configuration. The primary differences are product series designation (74CB vs. 74CBTLV), packaging format (Cut Tape & Digi-Reel vs. Tape & Reel), and inventory availability. Both maintain active product status and ROHS3 compliance.

Q: Why is PI3C3245Q marked as obsolete?

A: The PI3C3245Q has reached end-of-life status with Diodes Incorporated. Substitute parts ensure continued design support and production capability for applications requiring 8 x 1:1 bus switch functionality in the specified voltage and temperature ranges.

Q: Do all substitute parts meet the same compliance requirements?

A: All substitute parts are REACH Unaffected and carry EAR99 ECCN classification. The PI3C3245Q is RoHS non-compliant, while PI3C3245QE, SN74CB3T3245DBQR, and SN74CBTLV3245ADBQR are all ROHS3 compliant. MSL ratings differ: PI3C3245Q and PI3C3245QE have MSL 1 (Unlimited), while the Texas Instruments parts have MSL 2 (1 Year).

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