74LVCH2T45RA3-7

Translators, Level Shifters Overview

The 74LVCH2T45RA3-7 is a dual-bit, dual-supply translating transceiver with tri-state outputs manufactured by Diodes Incorporated. It facilitates bidirectional voltage translation between logic domains ranging from 1.2V to 5.5V on both VCC(A) and VCC(B). The device incorporates bus hold features at each input to maintain valid logic levels for disconnected pins. It supports maximum data rates up to 420Mbps during 3.3V to 5V translation. Operating temperatures are specified from -40°C to +85°C and -40°C to +125°C.

Translators, Level Shifters Feature Summary

• Dual supply architecture supporting universal low-voltage translation across independent power rails
• Bus hold feature maintains previous logic level to eliminate need for external resistors on unused inputs
• IOFF function places all port pins in high impedance state when either power supply is at 0V
• CMOS technology providing low power consumption and high noise immunity

Translators, Level Shifters Applications

• Voltage level translation joining logic types operating at different voltages
• Power-down signal isolation preventing loading on signal lines when a voltage domain is turned off
• Personal electronics including cell phones, tablets, e-readers, and MP3 players
• Computing devices such as PCs, notebooks, netbooks, and ultrabooks
• Networking equipment including routers, gateways, and computer peripherals

Translators, Level Shifters Procurement Notes

Verify the package code RA3 corresponds to the X2-DFN1210-8 footprint before procurement. Confirm that the required operating temperature range aligns with the specific grade available (-40°C to +85°C or -40°C to +125°C). Ensure design compatibility with the 5000-unit tape and reel packaging format. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Translators, Level Shifters Selection Notes

Select this component when interfacing two distinct voltage domains requiring bidirectional data transfer. The inclusion of bus hold functionality simplifies PCB layout by removing the requirement for pull-up or pull-down resistors on floating inputs. Verify that the target application operates within the specified 1.2V to 5.5V supply range for both ports. Consider the IOFF capability if partial power-down modes are utilized in the system design.

Translators, Level Shifters Part Context

This part belongs to the 74LVCH2T45 family of dual-bit translating transceivers produced by Diodes Incorporated. The RA3 suffix specifically denotes the X2-DFN1210-8 leadless package variant. It serves as a specialized interface solution for managing asynchronous communication between buses running at different logic voltage levels.

Translators, Level Shifters Replacement Considerations

The 74LVCH2T45HK3-7 is a confirmed substitute offering identical electrical characteristics but utilizing the X2-DFN1410-8 package.