TCA9416DTMR

Translators, Level Shifters Overview

The TCA9416DTMR is a 2-bit bidirectional I2C and SMBus voltage-level translator manufactured by Texas Instruments. It operates within a supply voltage range of 1.08 V to 3.6 V on both the A-side and B-side ports. The device features rising and falling edge accelerators to enhance data rates and includes internal 10-kΩ pull-up resistors on all SDA and SCL pins. It supports standard, fast-mode, and fast-mode-plus frequencies without requiring power-supply sequencing or direction control pins.

Translators, Level Shifters Feature Summary

• Bidirectional translation for SDA and SCL lines without direction control pins
• Integrated rise and fall time accelerators to improve signal slew rates
• Internal 10-kΩ pull-up resistors enabled based on respective supply voltages
• VCC isolation feature places both ports in high-impedance state when one supply is at GND

Translators, Level Shifters Applications

• Wearables
• Personal electronics
• Servers

Translators, Level Shifters Procurement Notes

Verify that the DTM suffix corresponds to the X2SON (8) package with dimensions of 1.35 mm × 0.80 mm. Confirm the component meets RoHS standards and check for specific manufacturing lot dates if required for production timelines. Ensure the OE pin configuration aligns with system power-up sequences to prevent bus glitches during ramp-up.

Translators, Level Shifters Selection Notes

Select this component when interfacing between logic levels such as 1.2-V, 1.8-V, 2.5-V, and 3.3-V. It is suitable for applications requiring low quiescent current and high ESD protection. The absence of a direction pin simplifies PCB layout compared to directional translators. Verify that the operating temperature range of -40°C to +125°C matches the environmental requirements.

Translators, Level Shifters Part Context

The TCA9416 belongs to the TI Switch family of voltage translators. It utilizes an N-channel pass-gate topology with auto-direction sensing. The DTMR variant specifically denotes the X2SON package form factor. This family is designed for point-to-point topologies where open-drain drivers are used on bidirectional data buses.

Translators, Level Shifters Replacement Considerations

TCA9416DDFR: Same functional specifications but housed in a SOT-23-T (8) package instead of X2SON.