SN74ABT533APWG4

Latches Overview

The SN74ABT533APWG4 is an octal transparent D-type latch with 3-state outputs manufactured by Texas Instruments. It utilizes EPIC-IIB BiCMOS technology and operates within a supply voltage range of 4.5 V to 5.5 V. The device features high-drive outputs capable of -32 mA source current and 64 mA sink current, supporting TTL input levels. It is housed in a 20-pin Thin Shrink Small-Outline (PW) package and is characterized for operation from -40°C to +85°C.

Latches Feature Summary

• Transparent data latching behavior where outputs follow input complements when the latch-enable signal is active
• High-drive output capability designed for driving highly capacitive or low-impedance loads
• Buffered output-enable control allowing placement of outputs into a high-impedance state

Latches Applications

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

Latches Procurement Notes

Verify that the ordering suffix 'G4' corresponds to the specific lead finish and RoHS compliance status required for your assembly process. Confirm the PW package designation matches the intended footprint on the printed circuit board layout. Ensure the operating temperature range aligns with the system's environmental specifications.

Latches Selection Notes

Select this component when an octal latch configuration with 3-state outputs is required for bus applications. The high-drive capability makes it suitable for direct connection to low-impedance loads without additional buffering. Consider the transparent latch functionality versus edge-triggered flip-flops based on the timing requirements of the target design.

Latches Part Context

This part belongs to the SN74ABT533A family of octal transparent D-type latches. It shares functional characteristics with other devices in the ABT logic series but is distinguished by its specific latch architecture and 3-state output control. The G4 suffix indicates a specific manufacturing variant compliant with environmental standards.

Latches Replacement Considerations

SN74ABT533AN

Latches FAQ

How does the latch-enable input affect the output state?

When the latch-enable input is high, the Q outputs follow the complements of the D inputs. When taken low, the outputs are latched at the inverse of the levels present at the D inputs.

What is the purpose of the buffered output-enable input?

The buffered output-enable input places the eight outputs into either a normal logic state or a high-impedance state, preventing significant loading or driving of bus lines.