SN74ALS533AN

Overview

The SN74ALS533AN is an octal D-type transparent latch with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from 0°C to 70°C. The device features eight latches in a single package, utilizing buffered control inputs and PNP inputs to reduce DC loading on data lines. Propagation delay ranges from 4 ns to 19 ns depending on the signal path. Low-level output current reaches 24 mA, while high-level output current is -2.6 mA.

Feature Summary

• Features three-state bus-driving inverting outputs designed for driving highly capacitive or low-impedance loads.
• Provides full parallel access for loading data into the internal latches simultaneously.
• Includes a buffered output-enable input that places outputs in a normal logic state or a high-impedance state.

Applications

• Implementing buffer registers
• I/O port interfaces
• Bidirectional bus drivers
• Working registers

Procurement Notes

Verify the specific ordering suffix 'N' corresponds to the standard plastic 300-mil DIP package before procurement. Confirm RoHS compliance status and lead finish details via the manufacturer's packaging addendum. Ensure the selected component matches the required operating temperature range and electrical specifications for the target application environment.

Selection Notes

Select this component when designing systems requiring octal data storage with tri-state bus interfacing capabilities. The ALS series offers a balance of speed and power consumption suitable for general-purpose digital logic applications. Consider the PDIP-20 package constraints regarding board space and thermal dissipation during the layout phase.

Part Context

This part belongs to the SN74ALS533A family of octal D-type transparent latches. It is functionally equivalent to the SN74ALS373A, distinguished primarily by its inverted output configuration. The device is characterized for operation across the commercial temperature range and utilizes standard TTL-compatible input levels.

Replacement Considerations

SN74ALS533ADW (SOIC Package)