74ABT373CSJX

Overview

The onsemi 74ABT373CSJX is an octal transparent latch with 3-STATE outputs, housed in a 20-Lead Small Outline Package (SOP). It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device features guaranteed output skew, simultaneous switching specifications for both 50pF and 250pF loads, and high-impedance glitch-free bus loading during power-up and power-down. Propagation delays from Dn to On are specified between 1.9ns and 4.5ns at VCC=5.0V with 50pF load.

Feature Summary

• Octal transparent latches with 3-STATE outputs designed for bus organized system applications
• High-impedance, glitch-free bus loading during entire power up and power down cycles
• Nondestructive hot-insertion capability ensuring safe data handling
• Guaranteed output skew and multiple output switching specifications

Applications

• Bus interfacing in organized system architectures
• Data storage and transfer in digital logic circuits
• Memory address buffering applications

Procurement Notes

Verify the component status as discontinued by Fairchild Semiconductor. Confirm that the 'X' suffix indicates tape and reel packaging per JEDEC J-STD-020B standards. Ensure compatibility with existing SOP-20 footprints and validate lead availability through authorized distributors or approved substitute channels due to end-of-life status.

Selection Notes

Select this component for designs requiring octal latching with tri-state control in 5V logic environments. Consider the specific SOP-20 package dimensions and EIAJ TYPE II width when designing PCB layouts. Evaluate propagation delay requirements against the specified AC electrical characteristics under varying load conditions and temperature ranges.

Part Context

This part belongs to the ABT logic family, characterized by advanced BiCMOS technology offering high-speed performance. Originally manufactured by Fairchild Semiconductor, it serves as a standard octal latch solution. The CSJX designation specifically identifies the SOP-20 package variant with tape and reel packaging configuration.

Replacement Considerations

Direct substitutes include SN74ABT373DW and SN74ABT373DWR from Texas Instruments. Verify pinout compatibility and electrical parameter alignment before implementation.