SN74AC533PWR

Latches Overview

The SN74AC533PWR is an octal transparent D-type latch with three-state 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 10.5 ns at 5 V. The device provides buffered output-enable control to place outputs in high-impedance states, allowing direct bus line driving without interface components. It utilizes a 20-pin TSSOP package.

Latches Feature Summary

• Octal transparent D-type latching mechanism
• Three-state buffered outputs for bus interfacing
• High-impedance state capability during power transitions

Latches Applications

• Parallel data loading onto system buses
• Bus-oriented memory mapping applications
• Clocked register designs requiring tri-state isolation

Latches Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the tape and reel packaging format on the official Texas Instruments website or authorized distributor catalogs. Confirm that the component status remains active and check for any recent Product Change Notifications regarding material or assembly updates before finalizing procurement orders.

Latches Selection Notes

Select this component when designing systems requiring eight-bit parallel storage with simultaneous bus access capabilities. Ensure the operating environment stays within the specified -40°C to +85°C temperature range. Verify that input transition rates do not exceed the recommended limits to maintain signal integrity across the logic family.

Latches Part Context

This part belongs to the SN74AC logic family, which offers higher speed performance compared to standard TTL equivalents while maintaining CMOS low-power characteristics. The AC series is designed for general-purpose digital applications requiring fast switching speeds and wide voltage operation ranges suitable for modern embedded systems.

Latches Replacement Considerations

SN74AC533DW

Latches FAQ

How does the Output Enable (OE) pin affect internal latch operations?

The OE pin controls only the external output state. It places the outputs in a high-impedance state but does not interrupt or alter the internal latching process, allowing data retention or new entry while outputs are disabled.

What is the recommended configuration for the OE pin during power-up?

To ensure the high-impedance state during power-up or power-down, the OE pin should be tied to VCC through a pullup resistor. The minimum resistor value depends on the driver's current-sinking capability.