74ABT573CSJ

Latches Overview

The onsemi 74ABT573CSJ is an octal D-type 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 buffered common Latch Enable (LE) and Output Enable (OE) inputs, providing high-impedance, glitch-free bus loading during power transitions. It guarantees output skew and simultaneous switching specifications for both 50pF and 250pF loads.

Latches Feature Summary

• Functionally identical to the ABT373 but utilizes broadside pinouts for easy microprocessor interface.
• Features 3-STATE outputs controlled by OE input, allowing bi-state or high impedance modes.
• Provides nondestructive hot insertion capability and guaranteed latchup protection.
• Ensures high-impedance, glitch-free bus loading throughout the entire power-up and power-down cycle.

Latches Applications

• Input or output port interfacing for microprocessors
• Bus interfacing applications requiring 3-STATE control
• Octal data latching systems

Latches Procurement Notes

Verify the specific package designation 'CSJ' corresponds to the 20-Lead SOP (EIAJ TYPE II, 5.3mm Wide) as defined in the ordering information. Confirm that the application environment remains within the recommended operating conditions, specifically the +4.5V to +5.5V supply voltage and -40°C to +85°C temperature range. Ensure compatibility with the buffered LE and OE input requirements for proper latch transparency and storage operation.

Latches Selection Notes

Select this component when an octal latch with 3-STATE outputs is required in a broadside pinout configuration. It serves as a direct functional equivalent to the ABT373, differing primarily in physical pin arrangement. Consider its high sink current capability of 64mA and source capability of 32mA for driving moderate loads. Verify that the guaranteed output skew and simultaneous switching specifications meet the timing constraints of the target system design.

Latches Part Context

This device belongs to the 74ABT logic family, characterized by advanced BiCMOS technology offering high-speed performance. It is part of a series of octal latches and flip-flops designed for high-density memory and register applications. The ABT573 specifically addresses the need for transparent latching with robust bus holding capabilities in standard SOP packaging.

Latches Replacement Considerations

The datasheet states the device is functionally identical to the ABT373; however, the CSJ suffix denotes a specific SOP package variant which may differ physically from other package types of the same logical function.