PCA9306DCTR Equivalent & Substitute Parts

Part Overview

The PCA9306DCTR is a voltage level translator IC from Texas Instruments designed for bidirectional signal translation between different voltage domains. This device features auto-direction sensing capability and operates across VCCA (1.2 V ~ 3.3 V) and VCCB (1.8 V ~ 5.5 V) supply ranges with a single circuit containing two channels. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part experiences supply constraints, when alternative packaging formats better suit board layout requirements, or when design specifications allow for extended operating temperature ranges or modified electrical parameters within the same functional category.

Key Parameters

Parameter	Value
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	2
Voltage - VCCA	1.2 V ~ 3.3 V
Voltage - VCCB	1.8 V ~ 5.5 V
Output Type	Open Drain, Push-Pull
Operating Temperature	-40°C ~ 105°C (TA)
Features	Auto-Direction Sensing
Mounting Type	Surface Mount
Package / Case	8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PCA9306DCTR is determined by the following criteria:

Primary Substitution Criteria:

Translator type: Voltage Level
Channel configuration: Bidirectional, 1 circuit, 2 channels per circuit
Output type: Open Drain, Push-Pull capability
Auto-direction sensing feature presence
VCCA voltage range: 1.2 V ~ 3.3 V minimum compatibility
VCCB voltage range: 1.8 V ~ 5.5 V minimum compatibility
Surface mount technology
ROHS3 compliance
MSL rating of 1 (Unlimited)

Secondary Variation Parameters:

Package format (8-LSSOP, 8-MSOP, 8-TSSOP, 8-UQFN, 8-UDFN)
Operating temperature range (may extend beyond -40°C ~ 105°C)
VCCA lower voltage limit (may extend to 1.0 V)
Product status (Active or Obsolete)
Manufacturer identity

Substitutes are grouped into three categories: parametric equivalents from the same manufacturer with identical electrical specifications but different packaging, manufacturer-recommended alternatives from other semiconductor suppliers with compatible voltage ranges and functionality, and obsolete variants that maintain core electrical parameters but are no longer in active production.

Parameter Comparison

Parameter	PCA9306DCTR (Main)	PCA9306DCTT	NVT2002DP,118	PCA9306AMUTCG	PCA9306FMUTAG	PCA9306FMUTCG
Manufacturer	Texas Instruments	Texas Instruments	NXP Semiconductors	onsemi	onsemi	onsemi
Translator Type	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level
Channel Type	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional
Channels per Circuit	2	2	2	2	2	2
Voltage - VCCA	1.2 V ~ 3.3 V	1.2 V ~ 3.3 V	1 V ~ 3.6 V	1 V ~ 3.6 V	1 V ~ 3.6 V	1 V ~ 3.6 V
Voltage - VCCB	1.8 V ~ 5.5 V	1.8 V ~ 5.5 V	1.8 V ~ 5.5 V	1.8 V ~ 5.5 V	1.8 V ~ 5.5 V	1.8 V ~ 5.5 V
Output Type	Open Drain, Push-Pull	Open Drain, Push-Pull	Open Drain, Push-Pull	Open Drain	Open Drain	Open Drain
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)	-40°C ~ 85°C (TA)	-55°C ~ 125°C (TA)	-55°C ~ 125°C (TA)	-55°C ~ 125°C (TA)
Features	Auto-Direction Sensing	Auto-Direction Sensing	Auto-Direction Sensing	Auto-Direction Sensing	Auto-Direction Sensing	Auto-Direction Sensing
Package / Case	8-LSSOP, 8-MSOP (0.110", 2.80mm Width)	8-LSSOP, 8-MSOP (0.110", 2.80mm Width)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-UFQFN	8-UFDFN	8-UFDFN
Product Status	Active	Active	Active	Obsolete	Obsolete	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

PCA9306DCTT (Texas Instruments): This part is a parametric equivalent to the PCA9306DCTR with identical electrical specifications and operating temperature range. The primary difference is packaging format (Cut Tape & Digi-Reel versus the main part's format). This substitute is recommended when supply of the primary part is constrained, as it maintains full compatibility with the same manufacturer and product status (Active). Current inventory availability is significantly higher at 406,489 pieces.

NVT2002DP,118 (NXP Semiconductors): This manufacturer-recommended alternative from NXP provides compatible voltage translation functionality with extended VCCA range (1 V ~ 3.6 V versus 1.2 V ~ 3.3 V). The operating temperature range is reduced to -40°C ~ 85°C, which may limit suitability for applications requiring the full -40°C ~ 105°C specification. Package format differs (8-TSSOP). This part is suitable for designs where the narrower temperature range is acceptable and where NXP component qualification is preferred.

PCA9306AMUTCG, PCA9306FMUTAG, PCA9306FMUTCG (onsemi): These three parts are obsolete variants from onsemi with extended operating temperature ranges (-55°C ~ 125°C). All three maintain core bidirectional voltage translation functionality with auto-direction sensing. The onsemi variants feature extended VCCA range (1 V ~ 3.6 V) and reduced output type specification (Open Drain only, without Push-Pull option). These parts are suitable only for new designs where obsolete component status is acceptable and where extended temperature operation is required. Inventory levels are limited (4,971 to 14,874 pieces).

All substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can PCA9306DCTT be used as a direct replacement for PCA9306DCTR?

A: Yes. PCA9306DCTT is a parametric equivalent with identical electrical specifications, voltage ranges, operating temperature, and functional features. The only difference is packaging format. Both are Active status products from Texas Instruments with ROHS3 compliance.

Q: What is the key difference between the Texas Instruments and NXP alternatives?

A: The NVT2002DP,118 from NXP extends the VCCA lower voltage limit to 1 V (versus 1.2 V minimum on the PCA9306DCTR) but reduces the maximum operating temperature to 85°C (versus 105°C). The package format also differs (8-TSSOP versus 8-LSSOP/8-MSOP).

Q: Why are the onsemi parts listed as obsolete?

A: PCA9306AMUTCG, PCA9306FMUTAG, and PCA9306FMUTCG are no longer in active production by onsemi. These parts are suitable only for designs where extended operating temperature (-55°C ~ 125°C) is a critical requirement and where component obsolescence is acceptable. Inventory is limited and future availability is not guaranteed.

Q: Are there package compatibility considerations when substituting?

A: Yes. The main part uses 8-LSSOP or 8-MSOP packages (0.110", 2.80mm width). The NXP alternative uses 8-TSSOP (0.118", 3.00mm width), and onsemi variants use 8-UQFN or 8-UFDFN packages. PCB layout and footprint compatibility must be verified before substitution.

Q: Can I use a substitute if my design requires Push-Pull output capability?

A: The onsemi variants (PCA9306AMUTCG, PCA9306FMUTAG, PCA9306FMUTCG) specify Open Drain output only. If Push-Pull output is required, use PCA9306DCTT (Texas Instruments) or NVT2002DP,118 (NXP), both of which support Open Drain and Push-Pull output types.

Q: What is the impact of the reduced operating temperature range on the NXP part?

A: The NVT2002DP,118 operates from -40°C to 85°C, compared to -40°C to 105°C for the main part. If your application requires operation above 85°C, this substitute is not suitable. Verify your system's maximum operating temperature requirement before selection.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with standard manufacturing processes and storage conditions.

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