74LV393D,118 Equivalent & Substitute Parts

Part Overview

The 74LV393D,118 is a binary counter logic IC manufactured by Nexperia USA Inc., featuring two 4-bit negative edge-triggered counter elements in a 14-SOIC surface mount package. This device is actively produced and widely used in digital counting and frequency division applications. Substitute parts are necessary when the primary part becomes unavailable due to supply constraints, regional sourcing requirements, or design flexibility needs across manufacturing batches.

Substiute Parts

74LV393D,118

Nexperia USA Inc.In Stock: 110774LV393D,118 Datasheet

Current PartRFQ

SN74LV393AD

Texas InstrumentsIn Stock: 1395SN74LV393AD Datasheet

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SN74LV393ADR

Texas InstrumentsIn Stock: 2090SN74LV393ADR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LV393D,118 is determined by functional equivalence across the following critical parameters:

• Logic Function: All substitute parts must be binary counters with identical element count (2) and bit width (4)
• Trigger Characteristics: Negative edge triggering and asynchronous reset are mandatory
• Package Compatibility: 14-SOIC package with 0.154" width ensures mechanical and electrical pin compatibility
• Electrical Ratings: Supply voltage and operating temperature ranges define application suitability
• Compliance: RoHS3 compliance and MSL rating ensure manufacturing and environmental compatibility

The substitute parts SN74LV393AD and SN74LV393ADR from Texas Instruments meet these functional requirements while offering different electrical operating ranges and packaging formats (Tube vs. Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 74LV393D,118 (Nexperia)

The 74LV393D,118 is the recommended primary choice due to active product status and extended operating temperature range (-40°C to 125°C), which provides broader application flexibility for industrial and automotive environments.

Secondary Selection: SN74LV393ADR (Texas Instruments)

The SN74LV393ADR is the preferred substitute when the primary part is unavailable. It maintains active product status, offers higher count rate capability (70 MHz vs. 20 MHz), and is supplied in Tape & Reel format matching the primary part's packaging. The supply voltage range (2 V ~ 5.5 V) accommodates standard logic supply levels. The reduced operating temperature range (-40°C to 85°C) is suitable for commercial and industrial applications.

Tertiary Selection: SN74LV393AD (Texas Instruments)

The SN74LV393AD provides functional equivalence but is discontinued at DiGi Electronics and supplied in Tube packaging rather than Tape & Reel. This part is suitable only when Tape & Reel format is not required and existing inventory is available.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and identical pin configuration, ensuring direct functional replacement within the specified electrical operating ranges.

Frequently Asked Questions (FAQ)

Q: Can SN74LV393AD and SN74LV393ADR be used interchangeably with 74LV393D,118?

A: Yes, both Texas Instruments parts are functionally equivalent. All three devices share identical logic function, pin configuration, and package dimensions (14-SOIC). Substitution is valid when the application supply voltage operates within 2 V ~ 5.5 V and operating temperature remains within -40°C ~ 85°C.

Q: What is the difference between SN74LV393AD and SN74LV393ADR?

A: Both parts are electrically identical. The primary difference is packaging format: SN74LV393AD is supplied in Tube, while SN74LV393ADR is supplied in Tape & Reel (TR). For automated assembly processes, Tape & Reel format is standard. Tube packaging is typically used for manual assembly or lower-volume applications.

Q: Why does the 74LV393D,118 have a lower count rate (20 MHz) compared to the Texas Instruments substitutes (70 MHz)?

A: Count rate specifications reflect maximum guaranteed operating frequency under specified conditions. The 74LV393D,118 operates at a lower maximum frequency but remains suitable for most digital counting and frequency division applications. The higher count rate of Texas Instruments parts provides additional performance margin for timing-critical designs.

Q: Are there voltage supply compatibility concerns when substituting parts?

A: The 74LV393D,118 operates at 1 V ~ 3.6 V, while Texas Instruments substitutes operate at 2 V ~ 5.5 V. If your application uses supply voltages below 2 V, only the Nexperia part is suitable. For applications using 2 V ~ 3.6 V, all three parts are compatible. For applications using 3.6 V ~ 5.5 V, only the Texas Instruments parts are suitable.

Q: Does operating temperature range affect substitution decisions?

A: The 74LV393D,118 supports -40°C ~ 125°C, while Texas Instruments substitutes support -40°C ~ 85°C. For applications requiring operation above 85°C, the Nexperia part is mandatory. For applications within -40°C ~ 85°C, all parts are compatible.

Q: Are all three parts RoHS3 compliant?

A: Yes. The 74LV393D,118, SN74LV393AD, and SN74LV393ADR are all ROHS3 compliant with MSL Level 1 rating, meeting environmental and manufacturing standards for commercial and industrial applications.