SN74ALS845FN

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS845FN is an 8-bit bus-interface D-type latch manufactured by Texas Instruments in the ALS logic series. It features true outputs with 3-state capability and is housed in a 24-pin DIP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum operating temperature of 70 °C. Key electrical characteristics include a low-level output current of 48 mA, a high-level output current of -15 mA, and a propagation delay of 14 ns. The static current consumption is specified at 6 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Incorporates 8-bit D-type latching functionality for data storage applications
• Provides 3-state outputs to facilitate bus-oriented memory and clocked I/O designs
• Features true output polarity for direct signal interfacing

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory systems requiring 8-bit data retention
• Clocked I/O circuits utilizing 3-state buffering
• Bus interface modules for data transfer control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'FN' corresponds to the 24-pin plastic dual in-line package (PDIP) configuration. Confirm that the component meets the required RoHS compliance status as indicated in official documentation. Ensure the ordering part number matches the exact manufacturer designation to avoid discrepancies in pinout or electrical specifications during procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an 8-bit latch with 3-state outputs is required for bus-driven architectures. The ALS series offers a balance of speed and power consumption suitable for standard TTL environments. Consider the 24-pin DIP package constraints for through-hole mounting requirements and verify that the 48 mA sink current capability aligns with the load requirements of the destination circuitry.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the SN74ALS family of advanced small-scale integration logic devices. It serves as a specialized latch variant within the broader buffer and driver category, distinct from standard drivers like the SN74ALS541 or simple gates like the SN74ALS08. The device is designed for high-speed digital applications requiring reliable data latching and bus isolation capabilities.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ALS845-1NSR is a documented substitute offering identical 8-bit latch functionality with 3-state outputs in a surface-mount SOIC package. Verify pin compatibility and package dimensions before substitution.