SN74AC563N

Latches Overview

The SN74AC563N is an octal D-type transparent latch with three-state inverting outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features a maximum propagation delay of 9 ns at 5 V. The device utilizes a flow-through architecture to optimize PCB layout and allows full parallel access for loading. A buffered output-enable input controls the high-impedance state, enabling direct bus line driving without interface components.

Latches Feature Summary

• Octal D-type transparent latches with three-state inverting outputs
• Buffered output-enable input for high-impedance control
• Flow-through architecture optimized for PCB layout

Latches Applications

• Directly driving bus lines
• Parallel data loading applications
• System memory address decoding

Latches Procurement Notes

Verify the specific package type and ordering suffix against the manufacturer's current documentation before procurement. Confirm that the selected variant matches the required operating temperature range and electrical specifications. Ensure compatibility with existing design constraints regarding power supply voltages and signal levels.

Latches Selection Notes

Select this component when designing systems requiring octal data storage with tri-state output capabilities. It is suitable for applications needing wide voltage operation between 2 V and 6 V. Consider the flow-through pinout if minimizing trace length and optimizing board space are primary design objectives.

Latches Part Context

This part belongs to the SN74AC logic family, which provides high-speed CMOS performance. The 'AC' series offers faster switching speeds compared to standard HC devices while maintaining low power consumption. The N suffix indicates a 20-pin PDIP through-hole package configuration.

Latches Replacement Considerations

SN74ACT563N

Latches FAQ

How does the output-enable input affect internal operations?

The output-enable input places the outputs in a high-impedance state but does not affect the internal operations of the latches.

What happens to the outputs when the latch-enable input is low?

When the latch-enable input is low, the outputs are latched at the inverse logic levels set up at the data inputs.