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Best Alternatives to PCA9306DCUR

Package: 8-VFSOP (0.091", 2.30mm Width)Texas InstrumentsTranslatorsPackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - VCCA: 1.2 V ~ 3.3 VVoltage - VCCB: 1.8 V ~ 5.5 VOutput Type: Open Drain, Push-PullOperating Temperature: -40°C~105°C(TA)

PCA9306DCUR is a popular 2-bit dual-supply I2C/SMBus voltage translator from Texas Instruments. When searching for a replacement, it's critical to match the open-drain compatibility and voltage levels.

AI replacement insight

Electrical riskhigh

Using a non-I2C (push-pull) translator will cause bus contention and failure.

Package risklow

The VSSOP-8 package is common, but pinout must be verified.

Firmware risklow

This is a hardware-only component; no firmware changes are needed.

Can it be replaced directly?

Yes, PCA9306DCUT is a direct, pin-to-pin replacement for PCA9306DCUR.

Best replacement path

Use PCA9306DCUT, which is the same part in a different packaging format.

Main risk

Using a translator not designed for open-drain I2C buses, which will cause communication failure.

Recommended alternatives

2
PCA9306DCUT package
PCA9306DCUT

Texas Instruments

Needs validationlow risk

Identical electrical and physical specifications, differing only in packaging format (Cut Tape).

View details

Alternative comparison matrix

Feature / factorPCA9306DCURPCA9306DCUTTXS0102DCUTTXS0102QDCURQ1Compatibility / risk
PackageVSSOP-8 (DCU)VSSOP-8 (DCU)VSSOP-8VSSOP-8VSSOP-8 (DCU) — Package matches.; TXS0102DCUT: Package matches.; TXS0102QDCURQ1: Package matches.
Voltage1.8V to 5.5V1.8V to 5.5V2.3V to 5.5V2.3V to 5.5V1.8V to 5.5V / 2.3V to 5.5V — VCCB range matches.; TXS0102DCUT: VCCB min is higher (2.3V vs 1.8V).; TXS0102QDCURQ1: VCCB min is higher (2.3V vs 1.8V).
Temperature-40°C to 85°C-40°C to 85°C-40°C to 85°C-40°C to +125°C-40°C to 85°C / -40°C to +125°C — Operating temperature matches.; TXS0102DCUT: Operating temperature matches.; TXS0102QDCURQ1: Wider temperature range.
PackagingTape & ReelCut Tape--Cut Tape — Different packaging format.
PinoutPinout matches-Pinout matches-Pinout matches — Pin functions are equivalent.
ApplicationCommercial--AEC-Q100AEC-Q100 — Automotive qualified.

Application & sourcing insights

Questions & answers

The best alternative is PCA9306DCUT, which is the same component in a different packaging format (Cut Tape). For functional alternatives, parts like the TXS0102 series can be considered, but require careful review of voltage levels.