DM74ALS563AWMX Equivalent & Substitute Parts

Part Overview

The DM74ALS563AWMX is a D-Type Transparent Latch IC with 1 channel, 8:8 configuration, and tri-state output, manufactured by onsemi in a 20-SOIC package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates within the 4.5V to 5.5V supply voltage range and is suitable for applications requiring transparent latch functionality with tri-state output control.

Substiute Parts

DM74ALS563AWMX

onsemiIn Stock: 911DM74ALS563AWMX Datasheet

Current PartRFQ

SN74ALS563BDW

Texas InstrumentsIn Stock: 869SN74ALS563BDW Datasheet

DirectRFQ

SN74ALS563BNSR

Texas InstrumentsIn Stock: 795SN74ALS563BNSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS563AWMX are qualified based on the following critical parameters that must remain consistent:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage - Supply: 4.5V ~ 5.5V
• Independent Circuits: 1
• Operating Temperature: 0°C ~ 70°C
• Base Product Number: 74ALS563 series

Two substitute parts meet these criteria:

1. SN74ALS563BDW (Texas Instruments) - Direct manufacturer substitute with identical electrical specifications and 20-SOIC package
2. SN74ALS563BNSR (Texas Instruments) - Similar substitute with package variation (20-SO, 5.30mm width vs. 7.50mm width)

Both substitutes are manufactured by Texas Instruments and maintain active product status, ensuring long-term availability and support.

Parameter Comparison

Engineering Selection Recommendations

SN74ALS563BDW is the primary substitute for the DM74ALS563AWMX. This part maintains identical package dimensions (20-SOIC, 7.50mm width), ensuring direct PCB compatibility without layout modifications. Both parts share the same electrical specifications for supply voltage, output current, and operating temperature range. The SN74ALS563BDW is manufactured by Texas Instruments with active product status and ROHS3 compliance, providing superior long-term availability compared to the obsolete onsemi part.

SN74ALS563BNSR serves as an alternative substitute when tape and reel packaging is required for automated assembly processes. This part features a narrower package width (5.30mm vs. 7.50mm), which may require PCB layout verification to confirm footprint compatibility. The electrical performance is equivalent to the SN74ALS563BDW, with both Texas Instruments substitutes offering ROHS3 compliance and active product status.

The propagation delay difference (3ns for the original part versus 6ns for both substitutes) must be evaluated within the context of system timing requirements. If the original 3ns specification is critical to circuit operation, timing analysis is necessary before substitution.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS563BDW be used as a direct replacement for DM74ALS563AWMX?

A: Yes. Both parts share identical electrical specifications (supply voltage, output current, operating temperature), the same logic type (D-Type Transparent Latch), circuit configuration (8:8), and package dimensions (20-SOIC, 7.50mm width). No PCB modifications are required.

Q: What is the difference between SN74ALS563BDW and SN74ALS563BNSR?

A: Both are functionally equivalent with identical electrical performance. The primary difference is packaging: SN74ALS563BDW is supplied in tube packaging, while SN74ALS563BNSR is supplied in tape and reel format. Additionally, SN74ALS563BNSR has a narrower package width (5.30mm vs. 7.50mm), which may affect PCB footprint compatibility.

Q: Does the propagation delay difference affect substitution?

A: The original DM74ALS563AWMX specifies 3ns propagation delay, while both Texas Instruments substitutes specify 6ns. This difference must be evaluated against system timing requirements. If the circuit depends on the faster 3ns specification, timing analysis is required before substitution.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both SN74ALS563BDW and SN74ALS563BNSR are ROHS3 compliant. The original onsemi part does not specify RoHS status.

Q: What is the moisture sensitivity level for these parts?

A: All three parts (original and both substitutes) have a Moisture Sensitivity Level of 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: Are these parts REACH compliant?

A: Yes. All three parts are listed as REACH Unaffected, indicating compliance with REACH regulations.