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Texas Instruments PCA9306DCTTG4 — Interface & Transceivers

Texas Instruments PCA9306DCTTG4 Voltage Level Translator

MPNPCA9306DCTTG4
Obsolete

Texas Instruments PCA9306DCTTG4, a 2-channel bidirectional voltage-level translator with auto-direction sensing, VCCA 1.2 V ~ 3.3 V, VCCB 1.8 V ~ 5.5 V, open-drain/push-pull output, -40°C~105°C, 8-LSSOP/8-MSOP SM8 package, Tape & Reel.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

PCA9306DCTTG4 specifications
ParameterValue
Output typeOpen Drain, Push-Pull
Channel typeBidirectional
MountingSurface Mount
Translator typeVoltage Level
Voltage - VCCA1.2 V ~ 3.3 V
Voltage - VCCB1.8 V ~ 5.5 V
Operating temperature-40°C~105°C(TA)
PackageTape & Reel (TR)
FeaturesAuto-Direction Sensing
Case8-LSSOP, 8-MSOP (0.110\", 2.80mm Width)
Number of circuits1
Channels per circuit2

Product details

For existing designs that already use this exact ordering code, supply is limited to inventory already in the channel or available through independent distribution.

Voltage translation range — 3.3 V to 5 V and beyond

The PCA9306DCTTG4 is a two-channel bidirectional voltage-level translator. That means it can translate a 3.3 V logic signal on the A side to a 5 V signal on the B side, or step down from 5 V to 3.3 V. The auto-direction sensing feature eliminates the need for a direction-control pin — the translator detects the direction of the data flow automatically, which simplifies the board layout and firmware.

Output type and channel configuration

The outputs are open-drain and push-pull compatible, and the channel type is bidirectional. With one circuit and two channels per circuit, this part handles two independent signal lines — for example, an I²C bus (SDA and SCL) or a pair of GPIO signals.

Frequently asked questions

What is a substitute for PCA9306DCTTG4?

A direct pin-compatible substitute within the same family is the PCA9306DC, which shares the same base product number and package. The PCA9306DC is listed as current production. Verify the exact package and temperature grade match your BOM before substituting.

Can PCA9306DCTTG4 be used for 3.3V to 5V level shifting?

Yes.