74LVC823AD,112 Equivalent & Substitute Parts

Part Overview

The 74LVC823AD,112 is a single-element D-type flip-flop with 9-bit configuration in a 24-SOIC package, manufactured by Nexperia USA Inc. This logic component features tri-state, non-inverted outputs and operates across a 1.65V to 3.6V supply voltage range with a maximum propagation delay of 10ns at 3.3V with 50pF load. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

74LVC823AD,112

Nexperia USA Inc.In Stock: 92374LVC823AD,112 Datasheet

Current PartRFQ

SN74LVC823ADW

Texas InstrumentsIn Stock: 1637SN74LVC823ADW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC823AD,112 is determined by strict alignment across the following critical parameters:

Functional Compatibility Parameters:

• Type: D-Type flip-flop architecture
• Number of Elements: 1
• Number of Bits per Element: 9
• Output Type: Tri-State, Non-Inverted
• Trigger Type: Positive Edge

Electrical Compatibility Parameters:

• Voltage - Supply: 1.65V ~ 3.6V
• Current - Output High, Low: 24mA, 24mA
• Current - Quiescent (Iq): 10 µA
• Input Capacitance: 5 pF

Physical Compatibility Parameters:

• Package / Case: 24-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must maintain identical values across all functional, electrical, and physical parameters. Variations in clock frequency, propagation delay, or operating temperature range do not disqualify a part from substitution provided all other parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

The SN74LVC823ADW from Texas Instruments qualifies as a direct substitute for the 74LVC823AD,112. Both parts maintain identical functional architecture, electrical specifications, and physical packaging. The substitute part offers the advantage of active product status, ensuring continued availability and manufacturing support compared to the obsolete Nexperia part.

Both parts carry ROHS3 compliance and MSL Level 1 rating, confirming equivalent environmental and regulatory standing. The SN74LVC823ADW exhibits superior propagation delay performance (8ns versus 10ns) and maintains the same supply voltage range and output drive capabilities, making it suitable for direct replacement in existing designs.

The operating temperature range difference (-40°C to 85°C for the substitute versus -40°C to 125°C for the original) should be evaluated against specific application requirements. Applications requiring operation above 85°C must retain the original part or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC823ADW directly replace the 74LVC823AD,112 in existing PCB designs?

A: Yes. Both parts share identical package geometry (24-SOIC), pin configuration, functional architecture (single-element 9-bit D-type flip-flop with tri-state outputs), and electrical specifications including supply voltage range (1.65V to 3.6V), output drive current (24mA), and quiescent current (10µA). PCB layout and schematic modifications are not required.

Q: What is the significance of the clock frequency difference between these parts?

A: The 74LVC823AD,112 specifies 200 MHz maximum clock frequency while the SN74LVC823ADW specifies 150 MHz. This difference does not affect substitution eligibility. Applications operating at or below 150 MHz encounter no functional impact. Applications requiring operation between 150 MHz and 200 MHz must retain the original part or conduct timing analysis to confirm system compatibility at the lower frequency.

Q: How does the propagation delay difference affect circuit performance?

A: The SN74LVC823ADW exhibits 8ns propagation delay compared to 10ns for the 74LVC823AD,112 at 3.3V with 50pF load. This represents improved performance in the substitute part. Timing-critical applications benefit from the faster response, while applications with relaxed timing margins experience no adverse effects.

Q: Are there temperature range limitations when substituting the SN74LVC823ADW?

A: The SN74LVC823ADW operates from -40°C to 85°C, compared to -40°C to 125°C for the original part. Applications requiring operation above 85°C cannot use the substitute without additional thermal management analysis or alternative component selection. Standard industrial and commercial temperature range applications (-40°C to 85°C) are fully compatible.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the 74LVC823AD,112 and SN74LVC823ADW carry ROHS3 compliance, REACH unaffected status, and MSL Level 1 rating. Regulatory and environmental requirements are equivalent between the two parts.

Q: What is the inventory and availability status of these parts?

A: The 74LVC823AD,112 is classified as obsolete with 878 pieces in stock. The SN74LVC823ADW is active with 1552 pieces in stock, providing superior long-term availability and supply chain continuity for new designs and ongoing production requirements.