74ACT11623NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT11623NT is an octal bus transceiver utilizing Texas Instruments' EPIC CMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a low-level output current of 24 mA and a high-level output current of -24 mA. The device features dual enable inputs (GBA and GAB) for flexible data direction control between two 8-bit buses. Propagation delays are specified with maximum values of 10.9 ns from enable to output and 8.5 ns from input to output at 5.5 V. It functions reliably across an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual-enable configuration allows independent or simultaneous control of data flow between A and B buses, supporting isolation or bidirectional transfer.
• Flow-through architecture optimizes printed circuit board layout efficiency for high-speed asynchronous communication applications.
• Center-pin VCC and GND configurations minimize high-speed switching noise during operation.
• Inputs are TTL-voltage compatible, ensuring interoperability with standard logic families.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous two-way communication interfaces between data buses
• Local bus-latch capability implementations
• High-speed bus transceiver circuits requiring isolated data paths

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official package option addendum to confirm the physical footprint and lead finish. Ensure the selected variant matches the required environmental specifications and moisture sensitivity level for the intended assembly process. Cross-reference the active status in the latest datasheet revision to confirm availability for new designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring independent control over data direction for two separate 8-bit buses. The dual-enable architecture provides flexibility for complex timing requirements compared to single-enable transceivers. Consider the center-pin power distribution if minimizing switching noise is critical for signal integrity in high-density layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACT logic family, which utilizes Enhanced-Performance Implanted CMOS (EPIC) technology. This series offers performance comparable to LS-TTL but with lower power consumption and higher noise immunity typical of CMOS devices. The 74ACT11623 specifically addresses the need for controlled bidirectional data transfer in microprocessor-based systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check the manufacturer's package option addendum for equivalent part numbers with different packaging styles, such as SOIC variants like 74ACT11623DW. Verify that any substitute maintains the same 24-pin PDIP footprint and electrical characteristics if direct pin-for-pin replacement is required without PCB redesign.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle data storage?

Data storage is achieved by simultaneously enabling both GBA and GAB inputs. In this state, each output reinforces its input, causing the bus lines to retain their last states if no other data sources are driving them.

What is the function of the center pins?

The center pins are dedicated VCC and GND connections. This configuration is designed to minimize high-speed switching noise by providing shorter current return paths.