74ABT373CSC

Overview

The onsemi 74ABT373CSC is an octal transparent latch with 3-STATE outputs housed in a 20-Lead Small Outline Integrated Circuit (SOIC) package. 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 high output drive capabilities, providing a sink current of 64mA and a source current of 32mA. Propagation delays from data inputs to outputs are typically 2.7ns at 5.0V with a 50pF load, while latch enable to output delays are typically 3.1ns.

Feature Summary

• Provides eight D-type latches with 3-STATE outputs for bus interfacing applications
• Features high-output drive capability with 64mA sink and 32mA source currents
• Ensures glitch-free bus loading during power-up and power-down cycles
• Includes guaranteed latchup protection and hot-insertion capability

Applications

• Bus organized system applications requiring data storage and buffering
• High-speed digital systems utilizing ABT logic families
• Interfaces requiring simultaneous switching specifications

Procurement Notes

Verify the specific ordering suffix 'CSC' corresponds to the 20-Lead SOIC package variant. Confirm RoHS compliance status as per JEDEC J-STD-020B standards. Check for any Product Change Notifications (PCN) regarding assembly or material changes. Ensure the component meets the required operating temperature range for the intended environment.

Selection Notes

Select this component when designing systems that require octal latching with tri-state bus control. The ABT series offers faster performance compared to standard AC/ACT logic. Ensure the design accommodates the 4.5V to 5.5V supply voltage requirement. Consider the 20-SOIC package dimensions for PCB layout constraints.

Part Context

This part belongs to the 74ABT logic family, known for high-speed operation and compatibility with TTL levels. It serves as an octal transparent latch, distinct from flip-flop variants like the 74ABT374 which trigger on clock edges. The device is manufactured by onsemi, formerly Fairchild Semiconductor, under the ABT product line.

Replacement Considerations

Direct substitutes include other manufacturers' 74ABT373 devices in SOIC-20 packages. Verify pinout compatibility and electrical characteristics such as propagation delay and output drive strength before substitution.