SN74LVC4245ADWE4

Translators, Level Shifters Overview

The SN74LVC4245ADWE4 is an octal bus transceiver and voltage-level shifter manufactured by Texas Instruments. It operates with a VCCA supply range of 4.5 V to 5.5 V and a VCCB supply range of 2.7 V to 3.6 V, enabling translation between 5-V and 3.3-V buses. The device features eight non-inverting channels with three-state outputs and a propagation delay of 6.7 ns. It supports low-voltage CMOS (LVCMOS) and LVTTL logic levels. Packaged in a 24-pin SOIC (DW) format, it functions within an operating temperature range of -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Provides bidirectional data transmission between two independent 8-bit buses.
• Facilitates voltage level shifting from 5-V systems to 3.3-V systems.
• Includes direction control inputs to manage data flow direction.
• Features output enable inputs for effective bus isolation.

Translators, Level Shifters Applications

• Asynchronous communication between data buses
• Memory mapping applications
• Control signal routing

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'E4' indicates RoHS compliance and green manufacturing status as per Texas Instruments documentation. Confirm the package type corresponds to the 24-pin SOIC (DW) variant. Ensure the voltage supply requirements match the target system's 5-V and 3.3-V rails before integration.

Translators, Level Shifters Selection Notes

Select this component when interfacing 5-V logic devices with 3.3-V systems requiring eight parallel channels. It serves as a direct replacement for standard 74LVC4245 devices with enhanced environmental compliance. Consider the SOIC-24 package constraints for PCB layout and thermal management during high-speed switching operations.

Translators, Level Shifters Part Context

This part belongs to the SN74LVC4245A family of octal bus transceivers. It is designed for use in complex digital systems where multiple data lines require simultaneous voltage translation. The device ensures signal integrity across different voltage domains while maintaining low power consumption typical of LVC technology.

Translators, Level Shifters Replacement Considerations

SN74LVC4245ADWR

Translators, Level Shifters FAQ

What is the primary function of the DIR input?

The DIR input determines the direction of data flow, allowing data to be transferred from A bus to B bus or vice versa.

Can this device translate from 3.3-V to 5-V?

No, the SN74LVC4245A is specifically designed for translating from 5-V (VCCA) to 3.3-V (VCCB) systems only.