What this level translator does and where it fits
The MAX3378EEUD+ from Analog Devices is a bidirectional voltage-level translator that connects digital interfaces running at different supply voltages. It handles four bidirectional channels in a single 14-TSSOP package, with open-drain and tri-state output options. The part is rated for industrial temperature range (-40°C to 85°C).
16 Mbps data rate — enough for SPI and fast I2C
Rated at 16 Mbps, this translator handles SPI, I2C, and UART rates. The open-drain output type means the rise time depends on the pull-up resistor value and bus capacitance.
Package and footprint
Housed in a 14-TSSOP (4.40 mm body width, 0.173" pitch), the MAX3378EEUD+ uses a standard, widely available footprint. The supplier device package is also 14-TSSOP, so no confusion on alternate package codes. Surface-mount only — no through-hole variant exists. The tube shipping medium is fine for prototype builds; for production reflow, order the tape-and-reel variant (MAX3378EEUD+T).
Lifecycle and sourcing reality
The MAX3378EEUD+ carries an Active lifecycle status from the manufacturer, with ROHS3 compliance. No end-of-life notice or last-time-buy window has been announced. That means it's a safe choice for new designs and production builds — no forced redesign on the horizon.