SN74HCT645PWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT645PWR is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a temperature range of -40°C to 85°C. The device features high-current outputs capable of driving up to 15 LSTTL loads, providing ±6 mA drive at 5 V. Typical propagation delay is 14 ns, with maximum values of 25 ns at 5.5 V under 50 pF load conditions. Input current is limited to 1 µA max, while maximum ICC is 80 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides asynchronous two-way communication between data buses via direction control
• Features high-current 3-state outputs for driving multiple LSTTL loads
• Ensures TTL-voltage compatibility with low input current consumption

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous two-way communication between data buses
• Memory-to-memory transfers
• Signal buffering and bidirectional data routing

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the TSSOP-20 package configuration. Confirm that the active production status aligns with long-term availability requirements. Ensure the operating temperature range meets system environmental specifications. Validate RoHS compliance and moisture sensitivity level ratings before integration into manufacturing processes.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS output levels. The HCT logic family ensures compatibility with standard TTL logic systems. Consider the TSSOP package dimensions for space-constrained printed circuit board layouts. Evaluate the 3-state isolation capability for managing shared bus architectures effectively.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74HCT645 series of octal bus transceivers. It shares functional similarities with other bidirectional transceivers but distinguishes itself through HCT logic compatibility. The product line includes various packaging options such as SOIC and PDIP, catering to different assembly and thermal management needs across industrial applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT245PWR serves as a functional substitute within the same logic family.