CD74ACT245EE4

Buffers, Drivers, Receivers, Transceivers Overview

The CD74ACT245EE4 is an octal bus transceiver utilizing Advanced CMOS (ACT) logic technology. It provides bidirectional data transmission between two buses with three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -55°C to 125°C. Key electrical characteristics include a typical propagation delay of 4 ns at 5 V, balanced delays, and output drive currents of ±24 mA. It features buffered inputs and SCR-latchup-resistant design.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal-bus transceiver with non-inverting three-state outputs for bidirectional data transmission
• Advanced CMOS process providing bipolar FAST/AS speed with significantly reduced power consumption
• SCR-latchup-resistant design ensuring robust performance under electrostatic stress conditions

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data transmission between memory modules and microprocessors
• Driving 50-ohm transmission lines in digital communication systems
• Fanout buffering for high-capacitance loads such as FAST ICs

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'E4' corresponds to the required lead finish and RoHS compliance status. Confirm the package type matches the intended PCB footprint. Check current product lifecycle status as some variants may be marked NRND or obsolete. Ensure the supply voltage requirements align with the system's 4.5 V to 5.5 V operational limits.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bipolar-level speed is required with lower power dissipation than standard bipolar families. The ACT series offers balanced propagation delays suitable for synchronous systems. Verify that the 4.5 V minimum supply voltage is compatible with the system power rail. Consider the -55°C to 125°C temperature range for industrial or military environments.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the CDx4AC245 and CDx4ACT245 family of octal bus transceivers. The 'CD74' prefix indicates a commercial-grade device manufactured by Texas Instruments. The 'ACT' designation specifies the use of Advanced CMOS technology, distinguishing it from the broader AC series which supports lower voltages. The 'EE4' suffix typically denotes environmental compliance and specific packaging details.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include other CD74ACT245 variants with different packages, such as CD74ACT245DW (SOIC) or CD74ACT245DB (SSOP). For lower voltage applications, the CD74AC245 series is an alternative but requires a wider supply voltage range. Ensure pin compatibility and thermal characteristics match the existing design constraints.