ST2378ETTR

Translators, Level Shifters Overview

The ST2378ETTR is an 8-bit, dual-supply bidirectional level translator manufactured by STMicroelectronics in a 20-pin TSSOP package. It interfaces low-voltage ASICs and PLDs with higher voltage systems using externally applied voltages VL and VCC within the range of 1.71 V to 5.5 V. The device supports asynchronous data transfer without direction pins and guarantees a data rate of 13 Mbps across the operating voltage range. Key electrical parameters include a maximum propagation delay of 15 ns at TA = 85 °C (VL = 1.8 V, VCC = 5.5 V), ±15 kV ESD protection on I/O lines, and low power consumption with current draw reduced to less than 1 μA in disable mode.

Translators, Level Shifters Feature Summary

• Bidirectional asynchronous data transfer capability utilizing transmission-gate-based design without requiring dedicated direction control pins
• Totem pole and open drain output configurations supporting standard logic and I2C communication protocols
• Integrated ±15 kV electrostatic discharge protection on I/O and VCC lines for enhanced reliability
• Enable pin functionality allowing disable mode operation to minimize current consumption

Translators, Level Shifters Applications

• Interfacing low-voltage ASICs and PLDs with higher voltage system components
• I2C bus communications requiring mixed voltage domain translation
• Asynchronous data transfer between digital subsystems operating at different supply levels

Translators, Level Shifters Procurement Notes

Verify that the ordering suffix ETTR corresponds to the specific tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets the specified RoHS compliance standards applicable to your manufacturing region. Ensure that the voltage ratings align with your system's operational requirements before finalizing procurement orders.

Translators, Level Shifters Selection Notes

Select this component when designing systems requiring bidirectional translation between voltage domains ranging from 1.71 V to 5.5 V. It is suitable for applications needing high-speed data rates up to 13 Mbps and robust ESD protection. Consider the TSSOP package constraints and thermal dissipation characteristics during PCB layout planning to ensure optimal performance under varying temperature conditions.

Translators, Level Shifters Part Context

This device belongs to the ST2378E series of level translators designed for bridging voltage gaps in mixed-signal environments. It addresses the need for efficient data exchange between modern low-power logic families and legacy or higher-voltage interfaces. The inclusion of ESD protection and flexible output driving modes makes it a versatile solution for complex digital interconnects.

Translators, Level Shifters Replacement Considerations

Consult official documentation for verified substitute part numbers. Ensure any replacement maintains compatibility with the 1.71 V to 5.5 V operating range and offers equivalent bidirectional translation capabilities.