SN74ALS563BDWRE4

Overview

The SN74ALS563BDWRE4 is an 8-bit 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 range of 0°C to 70°C. The device features a propagation delay from data input (D) to output (Q) ranging from 3 ns to 18 ns, depending on the specific transition and voltage conditions. It provides a low-level output current capability of up to 24 mA and a high-level output current of -2.6 mA. The component is housed in a 20-pin SOIC (DW) package.

Feature Summary

• Features 3-state outputs designed for driving highly capacitive or relatively low-impedance loads directly.
• Transparent latch operation allows Q outputs to follow complements of D inputs while latch-enable is high.
• Buffered output-enable input places outputs in normal logic states or high-impedance state without affecting internal operations.

Applications

• Implementing buffer registers
• I/O ports
• Bidirectional bus drivers
• Working registers

Procurement Notes

Verify the exact ordering suffix against the manufacturer's official documentation to confirm the reel quantity and RoHS compliance status. Ensure the specified package type matches the design requirements. Confirm that the active production status remains valid before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring 8-bit latching with bus-compatible 3-state outputs. Consider the ALS series characteristics for speed and power consumption balance. Verify that the load capacitance and impedance levels fall within the drive capabilities defined in the electrical specifications.

Part Context

This part belongs to the SN74ALS563B family of 8-bit D-type transparent latches. It is available in various packages including SOIC, PDIP, and CDIP. The 'E4' suffix typically indicates lead-free composition and environmental compliance, consistent with other TI product markings.

Replacement Considerations

SN74ALS563BDW