PCA9306D,112 Equivalent & Substitute Parts

Part Overview

The PCA9306D,112 is a voltage level translator IC with bidirectional capability, designed to interface between circuits operating at different voltage levels. Manufactured by NXP Semiconductors, this device features 1 circuit with 2 bidirectional channels and operates with VCCA ranging from 1 V to 3.6 V and VCCB from 1.8 V to 5.5 V. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	2
Voltage - VCCA	1 V ~ 3.6 V
Voltage - VCCB	1.8 V ~ 5.5 V
Output Type	Open Drain
Operating Temperature	-40°C ~ 105°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the PCA9306D,112 is determined by the following critical parameters:

Translator type (voltage level translation capability)
Bidirectional channel configuration (1 circuit, 2 channels)
Voltage range compatibility for both VCCA and VCCB
Output type and tri-state capability
Surface mount packaging with 8-pin configuration
Operating temperature range
RoHS3 compliance and regulatory certifications

The substitute parts listed below maintain these core functional and electrical characteristics. However, voltage range specifications differ across substitutes. The 74AVC and 74AVCH series operate with VCCA and VCCB both at 0.8 V ~ 3.6 V, while the 74LVC and 74LVCH series support 1.2 V ~ 5.5 V for both supplies. Selection depends on the specific voltage requirements of the target application.

Parameter Comparison

Part Number	Manufacturer	Translator Type	Channel Type	Circuits / Channels	VCCA Range	VCCB Range	Output Type	Data Rate	Operating Temp	Package	Product Status
PCA9306D,112	NXP Semiconductors	Voltage Level	Bidirectional	1 / 2	1 V ~ 3.6 V	1.8 V ~ 5.5 V	Open Drain	—	-40°C ~ 105°C	8-SOIC	Obsolete
74AVC2T45DC,125	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500Mbps	-40°C ~ 125°C	8-VFSOP	Active
74AVC2T45GF,115	NXP USA Inc.	Voltage Level	Bidirectional	1 / 2	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500Mbps	-40°C ~ 125°C	8-XFDFN	Active
74AVC2T45GT,115	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500Mbps	-40°C ~ 125°C	8-XFDFN	Active
74AVCH2T45GF,115	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500Mbps	-40°C ~ 125°C	8-XFDFN	Obsolete
74AVCH2T45GT,115	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500Mbps	-40°C ~ 125°C	8-XFDFN	Active
74LVC2T45DC,125	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420Mbps	-40°C ~ 125°C	8-VFSOP	Active
74LVC2T45DC-Q100H	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420Mbps	-40°C ~ 125°C	8-VFSOP	Active
74LVC2T45GT,115	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420Mbps	-40°C ~ 125°C	8-XFDFN	Active
74LVCH2T45DC,125	Nexperia USA Inc.	Voltage Level	Bidirectional	1 / 2	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420Mbps	-40°C ~ 125°C	8-VFSOP	Active
74LVCH2T45GN,115	NXP Semiconductors	Voltage Level	Bidirectional	1 / 2	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420Mbps	-40°C ~ 125°C	8-XFDFN	Active

Engineering Selection Recommendations

For applications requiring direct replacement of the PCA9306D,112, select from active product status parts to ensure long-term availability and supply chain stability. The 74LVC series (74LVC2T45DC,125, 74LVC2T45GT,115, 74LVCH2T45DC,125, 74LVCH2T45GN,115) provides the closest voltage range compatibility, supporting 1.2 V ~ 5.5 V on both VCCA and VCCB, which accommodates the original part's VCCB specification of 1.8 V ~ 5.5 V.

The 74AVC series (74AVC2T45DC,125, 74AVC2T45GF,115, 74AVC2T45GT,115) operates with both supplies at 0.8 V ~ 3.6 V and is suitable only for applications where both voltage rails remain within this range. These parts offer higher data rates (500Mbps) compared to the 74LVC series (420Mbps).

For automotive applications requiring AEC-Q100 qualification, the 74LVC2T45DC-Q100H is available. All substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Package selection depends on PCB layout constraints: 8-VFSOP (0.091", 2.30mm Width) for compact designs, or 8-XFDFN for ultra-miniature applications.

Frequently Asked Questions (FAQ)

Q: Can the 74AVC2T45 series directly replace the PCA9306D,112?

A: The 74AVC2T45 series is functionally compatible for bidirectional voltage translation with 1 circuit and 2 channels. However, the voltage range differs: 74AVC operates at 0.8 V ~ 3.6 V for both supplies, while the original PCA9306D,112 supports VCCA at 1 V ~ 3.6 V and VCCB at 1.8 V ~ 5.5 V. Use 74AVC only if your application operates within the 0.8 V ~ 3.6 V range on both supplies.

Q: What is the difference between 74LVC and 74LVCH series?

A: Both series support identical voltage ranges (1.2 V ~ 5.5 V) and data rates (420Mbps). The primary difference is packaging: 74LVC2T45 is available in 8-VFSOP, while 74LVCH2T45 is available in both 8-VFSOP and 8-XFDFN packages. Electrical performance is equivalent.

Q: Why does the PCA9306D,112 specify different voltage ranges for VCCA and VCCB?

A: The asymmetric voltage ranges (VCCA: 1 V ~ 3.6 V, VCCB: 1.8 V ~ 5.5 V) enable the device to translate between a low-voltage domain and a higher-voltage domain. This is the core function of a bidirectional level translator. Substitute parts with symmetric ranges (such as 74AVC or 74LVC) still perform bidirectional translation but require both supplies to operate within their specified symmetric range.

Q: Is the 74AVCH2T45GF,115 suitable for new designs?

A: The 74AVCH2T45GF,115 is classified as obsolete. For new designs, select from active product status parts such as 74AVC2T45GT,115, 74LVC2T45GT,115, or 74LVCH2T45DC,125 to ensure long-term availability.

Q: What packaging options are available for the 74LVC2T45 series?

A: The 74LVC2T45 series is available in two packages: 8-VFSOP (0.091", 2.30mm Width) for standard surface mount applications, and 8-XFDFN for compact designs. Both packages are RoHS3 compliant with MSL 1 (Unlimited) rating.

Q: Does the 74LVC2T45DC-Q100H have different electrical specifications than the standard 74LVC2T45DC,125?

A: The 74LVC2T45DC-Q100H is qualified to AEC-Q100 automotive standards and is intended for automotive applications. Electrical specifications (voltage ranges, data rate, operating temperature) are identical to the standard 74LVC2T45DC,125. The -Q100H designation indicates automotive qualification only.

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