SN74ALS580BDWR

Overview

The SN74ALS580BDWR is an octal D-type transparent latch manufactured by Texas Instruments, belonging to the Advanced Low-power Schottky (ALS) logic family. It features eight independent latches with inverting outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides a propagation delay of 18 ns, a low-level output current of 32 mA, and a high-level output current of -2.6 mA. Designed for surface-mount applications, it is housed in a 20-pin SOIC package and supports operation temperatures from 0°C to +70°C.

Feature Summary

• Octal configuration providing eight independent transparent latch circuits
• Inverting output polarity characteristic
• Advanced Low-power Schottky (ALS) technology implementation

Applications

• Parallel-to-serial data conversion interfaces
• Temporary storage registers in digital processing systems
• Data buffering within microprocessor-based architectures

Procurement Notes

Verify the specific suffix 'BDWR' corresponds to the SOIC-20 surface-mount package and tape-and-reel shipping format. Confirm that the ALS series designation aligns with required speed and power constraints. Ensure compatibility with standard TTL input levels and 5V logic families during integration planning.

Selection Notes

Select this component when eight parallel data lines require simultaneous latching with inverted signal availability. The ALS series offers a balance between switching speed and power consumption suitable for general-purpose logic applications. Verify that the through-hole alternative SN74ALS580BN is not required if PCB layout mandates DIP packaging instead of surface mount.

Part Context

This part belongs to the Texas Instruments SN74ALS580B series of octal latches. It shares functional similarities with other ALS family devices but is distinct from flip-flops like the SN74ALS574 due to its transparent latch behavior rather than edge-triggered operation. The BDWR suffix specifically denotes the SOIC package and reel packaging method.

Replacement Considerations

SN74ALS580BN serves as a direct pin-compatible through-hole alternative. SN74ALS580N is another PDIP variant. Cross-reference datasheets to ensure identical electrical characteristics and pinout configurations before substitution.