PI5C3383QE Equivalent & Substitute Parts

Part Overview

The PI5C3383QE is a Bus FET Exchange Switch logic IC manufactured by Diodes Incorporated, designed for 5 x 2:2 switching applications in 24-QSOP packaging. This component operates on single supply voltage (4.75V ~ 5.25V) and supports operating temperatures from -40°C to 85°C. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI5C3383QE
Manufacturer	Diodes Incorporated
Type	Bus FET Exchange Switch
Circuit Configuration	5 x 2:2
Voltage Supply Range	4.75V ~ 5.25V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	24-SSOP (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PI5C3383QE is determined by the following critical parameters:

Circuit Configuration: 5 x 2:2 switching topology (mandatory match)
Voltage Supply Range: Single supply operation within compatible voltage windows
Operating Temperature Range: -40°C to 85°C minimum requirement
Package Type: Surface mount SSOP or TSSOP variants
Functional Classification: Bus FET Exchange Switch logic IC
Compliance: ROHS3 compliance and REACH unaffected status

Substitute parts are grouped into two categories based on package compatibility:

Category 1 - SSOP Package Variants (24-SSOP): QS3383QG, QS3383QG8, SN74CBT3383CDBQR, SN74CBT3383DBQR, SN74CBT3383DBR

Category 2 - TSSOP Package Variants (24-TSSOP): SN74CBT3383CPWR, SN74CBT3383PW, SN74CBT3383PWR

All substitutes maintain identical circuit configuration, operating temperature range, and compliance certifications. Voltage supply ranges vary slightly between manufacturers but remain compatible with standard 5V logic applications.

Parameter Comparison

Part Number	Manufacturer	Circuit	Voltage Supply	Temp Range	Package	Status	MSL
PI5C3383QE	Diodes Inc.	5 x 2:2	4.75V ~ 5.25V	-40°C ~ 85°C	24-QSOP	Obsolete	1
QS3383QG	Renesas	5 x 2:2	4.75V ~ 5.25V	-40°C ~ 85°C	24-QSOP	Active	1
QS3383QG8	Renesas	5 x 2:2	4.75V ~ 5.25V	-40°C ~ 85°C	24-QSOP	Active	1
SN74CBT3383CDBQR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Active	2
SN74CBT3383CPWR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Active	1
SN74CBT3383DBQR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Active	2
SN74CBT3383DBR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Last Time Buy	1
SN74CBT3383DGVR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TFSOP	Discontinued	1
SN74CBT3383PW	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Last Time Buy	1
SN74CBT3383PWR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Last Time Buy	1

Engineering Selection Recommendations

For replacement of the obsolete PI5C3383QE, the following selection criteria apply:

Primary Recommendation - Active Status Parts: QS3383QG and QS3383QG8 from Renesas Electronics Corporation are active production parts with identical voltage supply specifications (4.75V ~ 5.25V) and MSL rating of 1. These parts provide the longest product lifecycle support.

Alternative - Texas Instruments 74CBT Series: SN74CBT3383CDBQR and SN74CBT3383CPWR are active production alternatives with slightly expanded voltage supply range (4.5V ~ 5.5V), providing additional design margin. SN74CBT3383CDBQR maintains 24-SSOP packaging identical to the original PI5C3383QE footprint. SN74CBT3383CPWR uses 24-TSSOP packaging with different physical dimensions.

End-of-Life Considerations: SN74CBT3383DBR, SN74CBT3383PW, and SN74CBT3383PWR are designated Last Time Buy status. SN74CBT3383DGVR is discontinued at DiGi Electronics and should not be selected for new designs.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PI5C3383QE with QS3383QG in the same PCB layout?

A: Yes. Both parts use 24-QSOP packaging with identical 0.154" (3.90mm) width and surface mount configuration. No PCB redesign is required.

Q: What is the difference between SN74CBT3383CDBQR and SN74CBT3383CPWR?

A: Both are active Texas Instruments substitutes with identical electrical specifications. The primary difference is packaging: SN74CBT3383CDBQR uses 24-SSOP (0.154" width), while SN74CBT3383CPWR uses 24-TSSOP (0.173" width). Package selection depends on PCB footprint compatibility.

Q: Why does the Texas Instruments 74CBT series specify 4.5V ~ 5.5V instead of 4.75V ~ 5.25V?

A: The expanded voltage range (4.5V ~ 5.5V) is a manufacturer specification difference. This range encompasses the original 4.75V ~ 5.25V window, making these parts compatible with designs using the PI5C3383QE voltage specifications.

Q: Are there any moisture sensitivity differences between substitutes?

A: Yes. Renesas QS3383QG and QS3383QG8 parts have MSL 1 (Unlimited), identical to the original PI5C3383QE. Most Texas Instruments variants also have MSL 1, except SN74CBT3383CDBQR and SN74CBT3383DBQR which have MSL 2 (1 Year). MSL 2 parts require controlled storage conditions.

Q: Should I avoid Last Time Buy parts for new designs?

A: Yes. Parts designated Last Time Buy (SN74CBT3383DBR, SN74CBT3383PW, SN74CBT3383PWR) have limited remaining inventory and no future production. For new designs requiring long-term component availability, select active production parts: QS3383QG, QS3383QG8, or SN74CBT3383CDBQR.

Q: Is the PI5C3383QE pin-compatible with all listed substitutes?

A: All substitutes maintain the 5 x 2:2 circuit configuration and 24-pin surface mount packages. Pin compatibility is preserved across all listed alternatives.

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