TISN74AVCH4T245PWR
Overview
The SN74AVCH4T245PWR is a 4-bit non-inverting bus transceiver that uses two separate configurable power-supply rails for bidirectional voltage level translation. It allows for seamless data communication between different voltage domains ranging from 1.2V to 3.6V. This device is particularly useful for interfacing low-voltage microprocessors with higher voltage peripherals or legacy systems.
Why Choose This Part
The integration of bus-hold circuitry eliminates the need for external pull-up or pull-down resistors on unused or floating inputs, saving board space. It features fully configurable dual-rail design and Ioff circuitry, which supports partial-power-down mode by disabling outputs when a supply is removed. High ESD protection of 8000V HBM ensures robustness in industrial or handheld applications.
Applications
Key Specifications
Getting Started
Ensure that VCCA and VCCB are decoupled with 0.1uF capacitors placed close to the pins. Since this is a direction-controlled transceiver, verify that the DIR pins are driven to the correct logic level for the intended data flow. For prototyping, use a TSSOP-16 to DIP breakout board or integrate it into a PCB design using standard 0.65mm pitch footprints.
