BU4015BF-E2 Equivalent & Substitute Parts

Part Overview

The BU4015BF-E2 is a dual 4-bit shift register logic IC manufactured by Rohm Semiconductor in a 16-SOP surface mount package. This device functions as a serial-to-parallel converter with push-pull output configuration, operating across a supply voltage range of 3V to 16V and temperature range of -40°C to 85°C. The part is classified as "Not For New Designs," indicating end-of-life status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for existing applications.

Substiute Parts

BU4015BF-E2

Rohm SemiconductorIn Stock: 5483BU4015BF-E2 Datasheet

Current PartRFQ

CD4015BM

Texas InstrumentsIn Stock: 1706CD4015BM Datasheet

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CD4015BM96

Texas InstrumentsIn Stock: 2513CD4015BM96 Datasheet

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CD4015BMT

Texas InstrumentsIn Stock: 2453CD4015BMT Datasheet

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HEF4015BT,653

Nexperia USA Inc.In Stock: 5298HEF4015BT,653 Datasheet

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MC14015BDG

onsemiIn Stock: 1916MC14015BDG Datasheet

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MC14015BDR2G

onsemiIn Stock: 4160MC14015BDR2G Datasheet

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NLV14015BDR2G

onsemiIn Stock: 3278NLV14015BDR2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BU4015BF-E2 is determined by strict alignment of the following critical parameters:

• Logic Type: Shift Register (dual 4-bit configuration)
• Function: Serial to Parallel conversion
• Output Type: Push-Pull
• Number of Elements: 2
• Number of Bits per Element: 4
• Mounting Type: Surface Mount
• Package Category: 16-SOIC (0.154" to 0.173" width tolerance)
• Series: 4000B
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

All identified substitute parts maintain these core functional and electrical characteristics. Variations in supply voltage range, operating temperature range, and product status are noted but do not preclude substitution when application requirements fall within the substitute part's specifications.

Parameter Comparison

Engineering Selection Recommendations

Active Status Parts (Recommended for New Applications):

CD4015BM96, HEF4015BT,653, MC14015BDG, MC14015BDR2G, and NLV14015BDR2G all maintain Active product status, indicating ongoing manufacturer support and availability. These parts are suitable for designs requiring long-term supply assurance.

Last Time Buy Parts (Limited Availability):

CD4015BM and CD4015BMT carry Last Time Buy status, indicating limited remaining inventory. These parts remain functionally equivalent but should be selected only when supply constraints or specific packaging requirements necessitate their use.

Compliance and Certifications:

All substitute parts maintain ROHS3 compliance and MSL Rating 1 (Unlimited), matching the original BU4015BF-E2 specifications. NLV14015BDR2G includes AEC-Q100 automotive qualification, providing additional assurance for automotive and high-reliability applications.

Supply Voltage and Temperature Considerations:

The BU4015BF-E2 operates within 3V to 16V supply range and -40°C to 85°C temperature range. All substitute parts support the 3V minimum supply voltage. Most substitutes extend the upper supply voltage to 18V and lower operating temperature to -55°C, providing enhanced operational margins. HEF4015BT,653 specifies 4.5V minimum supply voltage; applications requiring 3V operation must verify compatibility or select alternative substitutes.

Frequently Asked Questions (FAQ)

Q: Can I substitute the BU4015BF-E2 with any of the listed parts?

A: Yes, all listed parts are functionally equivalent shift registers with identical logic configuration (dual 4-bit, serial-to-parallel, push-pull output). Substitution is valid when the application's supply voltage and operating temperature requirements fall within the substitute part's specifications.

Q: What is the difference between the various Texas Instruments CD4015 variants?

A: CD4015BM, CD4015BM96, and CD4015BMT are electrically identical but differ in packaging format. CD4015BM is supplied in Tube packaging, CD4015BM96 in Cut Tape & Digi-Reel®, and CD4015BMT in Tape & Reel. Select based on your assembly process requirements and inventory management preferences.

Q: Is the HEF4015BT,653 suitable for 3V applications?

A: The HEF4015BT,653 specifies a minimum supply voltage of 4.5V. Applications requiring 3V operation should select CD4015BM96, MC14015BDR2G, MC14015BDG, NLV14015BDR2G, or CD4015BMT instead.

Q: What does "Last Time Buy" status mean?

A: Last Time Buy indicates the manufacturer has announced end-of-life for that part number. Remaining inventory is available for purchase, but no future production is planned. Parts with Active status (CD4015BM96, HEF4015BT,653, MC14015BDG, MC14015BDR2G, NLV14015BDR2G) are recommended for new designs requiring long-term availability.

Q: Does NLV14015BDR2G offer any advantages over other substitutes?

A: NLV14015BDR2G includes AEC-Q100 automotive qualification, making it suitable for automotive and high-reliability applications. It maintains Active product status and is supplied in Tape & Reel packaging. Electrically and functionally, it is equivalent to other onsemi and Texas Instruments alternatives.

Q: Are there package size differences I should consider?

A: The BU4015BF-E2 is specified as 16-SOIC (0.173", 4.40mm width). Most substitute parts use 16-SOIC (0.154", 3.90mm width). Both are standard 16-pin SOIC packages with compatible pinouts and PCB footprints. Verify your PCB design accommodates the substitute package dimensions if precision is critical.