SN74LVCC4245APWTE4

Translators, Level Shifters Overview

The SN74LVCC4245APWTE4 is an octal dual-supply bus transceiver with configurable output voltage and 3-state outputs. It operates with VCCA at 4.5V to 5.5V and VCCB at 2.7V to 5.5V. The device provides 24mA drive strength at a 3V supply. It features robust, glitch-free power supply sequencing and VCC isolation capabilities. The component supports asynchronous communication between data buses in both directions.

Translators, Level Shifters Feature Summary

• Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order without producing glitches on the I/Os.
• VCC isolation feature disables all I/O outputs when either VCC input is below 100mV or left floating, preventing backflow current.
• High drive strength of 24mA at 3V supply supports heavier loads and longer PCB traces.
• Low VIH levels enable translation from 3.3V to 5V environments.

Translators, Level Shifters Applications

• Data concentrators
• Three phase UPS systems
• Servo drive power stage modules
• Air conditioner outdoor units
• String inverters

Translators, Level Shifters Procurement Notes

Verify the specific package type matches the design requirements, as the LVCC4245A series is available in multiple packages including TSSOP-24 (PW), SSOP-24 (DB), SOIC-24 (DW), and SOP-24 (NS). Confirm that the E4 suffix indicates lead-free and RoHS compliance. Ensure the ordering suffix aligns with the required packaging format for assembly processes.

Translators, Level Shifters Selection Notes

Select this component when interfacing between 5V and 3.3V logic domains requiring high drive capability. It serves as a pin-compatible upgrade for standard 20-pin '245 devices while offering enhanced performance. Consider the VCC isolation feature if partial-power-down scenarios are present in the system architecture.

Translators, Level Shifters Part Context

This part belongs to the SN74LVCC4245A family of octal bus transceivers. It is designed for asynchronous communication between data buses. The device is compatible with the SN74LVC4245 series but offers specific voltage level translation features suitable for mixed-voltage systems.

Translators, Level Shifters Replacement Considerations

SN74LVC4245APWT

Translators, Level Shifters FAQ

How does the device handle power supply sequencing?

The device features glitch-free power supply sequencing, allowing either VCCA or VCCB to be powered on or off in any order without generating glitches on the I/Os.

What happens if one of the supply voltages drops below 100mV?

If either VCCA or VCCB is below 100mV or left floating, all I/O outputs enter a high-impedance state to prevent damaging current backflow through the device.