SN74BCT623DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT623DW is an octal bus transceiver utilizing state-of-the-art BiCMOS design. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data transmission between A and B buses based on OEAB and OEBA control inputs. The device provides true data outputs with high-level output currents up to -15 mA for the B port and low-level output currents up to 64 mA. Propagation delays are characterized at 0.5 ns minimum to 8.3 ns maximum depending on direction and load conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual-enable configuration allows flexible timing control and data storage by simultaneously enabling both ports.
• State-of-the-art BiCMOS technology significantly reduces quiescent current consumption.
• ESD protection exceeds 2000 V per MIL-STD-883C, Method 3015.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• High-speed isolated bus systems
• Bus-oriented memory and logic applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (SOIC DW or PDIP N) against the required pin count and footprint. Confirm RoHS compliance status as indicated in the ordering information. Ensure the operating temperature range matches the application environment, as the SN74BCT623 is rated for 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when asynchronous bidirectional data transfer with independent enable controls is required. The dual-enable feature distinguishes it from standard single-direction transceivers. Verify that the 5V logic levels and BiCMOS drive strength meet the system's electrical requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74BCT series, which combines the speed of bipolar circuits with the low power of CMOS. The '623' designation specifically identifies the octal bus transceiver function with dual enables. It is distinct from the SN54BCT623, which covers the full military temperature range.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74BCT623DWE4

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device store data?

Data is stored by simultaneously enabling both OEAB and OEBA inputs. In this configuration, each output reinforces its input, maintaining the last state of the bus lines if no other sources are active.

What is the difference between SN74BCT623 and SN54BCT623?

The primary difference is the operating temperature range. The SN74BCT623 is characterized for operation from 0°C to 70°C, while the SN54BCT623 is characterized for the full military temperature range of -55°C to 125°C.