SN74ALS245ANSR

Overview

The SN74ALS245ANSR is an octal bus transceiver manufactured by Texas Instruments, belonging to the SN74ALS series. It features a 20-SOIC package with surface-mount installation. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to +70°C. Electrical characteristics include a low-level output current of 24 mA and a high-level output current of 15 mA. The component provides non-inverting data transmission across eight bits.

Feature Summary

• Octal configuration enabling simultaneous bidirectional data transfer for eight-bit buses
• Direction control pin allows flexible management of data flow between ports
• Output enable functionality isolates the bus when the device is inactive
• Tri-state outputs minimize power consumption during idle states

Applications

• Mobile applications requiring efficient bus-oriented memory addressing
• Clock drivers designed for improved skew and timing characteristics
• Bus-oriented memory and memory architecture implementations

Procurement Notes

Verify the specific ordering suffix to ensure the correct tape and reel packaging configuration matches production requirements. Confirm that the RoHS compliance status aligns with environmental regulations applicable to the target region. Check the moisture sensitivity level classification to determine appropriate storage and handling procedures during assembly. Ensure the SOIC-20 footprint dimensions correspond precisely with the printed circuit board layout specifications.

Selection Notes

Select this component when designing systems requiring robust octal data transmission with defined drive capabilities. The ALS logic family offers a balance between speed and power consumption suitable for general-purpose digital interfaces. Verify that the required operating voltage remains stable within the specified 4.5 V to 5.5 V window. Consider the thermal performance of the SOIC-20 package relative to the expected ambient temperature conditions in the final enclosure.

Part Context

This part belongs to the Texas Instruments SN74ALS logic family, which utilizes Advanced Low-Power Schottky technology. The SN74ALS245A variant specifically addresses the need for high-density bus interfacing in compact electronic designs. It serves as a standard solution for connecting microprocessors to peripheral devices or memory modules via parallel data paths.

Replacement Considerations

SN74ALS245ANSRG4 is a verified equivalent variant from the same manufacturer.