SN74ALS623ANSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS623ANSR is an octal bus transceiver from the Texas Instruments SN74ALS623A series, designed for asynchronous two-way communication between data buses. It features a dual-output-enable configuration (OEAB and OEBA) that allows flexible timing control and local bus-latch capability by simultaneously enabling both inputs. The device provides true logic outputs with 3-state capabilities. 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 -15 mA. Propagation delays are specified between 2 ns and 13 ns depending on direction and load conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous two-way communication between data buses
• Features dual-output-enable configuration for maximum flexibility in timing
• Provides local bus-latch capability when both enable inputs are active
• Delivers true logic outputs with 3-state isolation

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous data bus communication systems
• Local bus-latch applications requiring simultaneous bidirectional transfer
• High-speed digital signal routing in industrial environments

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix 'SR' corresponds to the SOP package and tape-and-reel quantity of 2000 units. Confirm RoHS compliance and NIPDAU lead finish requirements. Ensure the operating temperature range of 0°C to 70°C aligns with system specifications. Cross-reference the datasheet revision SDAS226A for accurate electrical characteristics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring octal bidirectional data transfer with independent direction control. The ALS logic family offers a balance of speed and power consumption suitable for standard 5V logic interfaces. Verify that the required propagation delay falls within the specified 2 ns to 13 ns range under the target load capacitance of 50 pF.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS623A family of octal bus transceivers manufactured by Texas Instruments. It is characterized for operation from 0°C to 70°C and is available in multiple package options including SOIC and PDIP. The device is part of the broader 74ALS logic series, providing compatibility with standard TTL input levels while offering improved performance over earlier LS families.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ALS623ADW serves as a direct pin-compatible alternative in the SOIC-20 tube package. The SN74ALS623AN is available in the PDIP-20 through-hole package. For higher drive current requirements, the SN74AS623 variant offers increased output capability but may require different thermal management.