SN74BCT573DW

Overview

The SN74BCT573DW is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the BCT logic family. It features eight D-type latches with three-state outputs in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 8.2 ns at 5 V, a static current of 62 mA, and output drive capabilities of 32 mA for low-level and -15 mA for high-level states. It supports a non-inverting polarity and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Provides octal data storage via transparent D-type latching mechanism
• Integrates three-state outputs for effective bus driving applications
• Utilizes BiCMOS technology for enhanced performance characteristics

Applications

• Registering wide data buses in digital systems
• Driving memory address lines
• General-purpose parallel-to-serial conversion interfaces

Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-20 surface-mount package configuration. Confirm that the BCT series designation aligns with required BiCMOS performance specifications. Ensure the operating temperature range meets system environmental constraints. Cross-reference manufacturer documentation for any pinout variations or updated mechanical drawings prior to integration.

Selection Notes

Select this component when octal latching with three-state control is required. The BCT series offers a balance of speed and power consumption suitable for 5V logic systems. Consider the SOIC-20 package for surface-mount assembly needs. Verify input compatibility with source logic families to ensure proper signal integrity across the operating voltage range.

Part Context

This part belongs to the SN74BCT series of BiCMOS logic devices from Texas Instruments. The BCT family combines the speed of bipolar transistors with the low power of CMOS technology. This specific model provides octal latching functionality, distinguishing it from buffer or driver variants within the same logical family classification.

Replacement Considerations

SN74BCT573DWR is a tape-and-reel variant of the same functional device.