BU4094BCF-E2 Equivalent & Substitute Parts

Part Overview

The BU4094BCF-E2 is an 8-bit shift register manufactured by ROHM Semiconductor in the 4000B logic series. This surface-mount device functions as a serial-to-parallel converter with tri-state output capability, operating across a 3V to 16V supply voltage range. The part is active in production status with RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are necessary to address supply chain variations, packaging preferences, and extended operating temperature requirements across different application environments.

Substiute Parts

BU4094BCF-E2

ROHM SemiconductorIn Stock: 15881BU4094BCF-E2 Datasheet

Current PartRFQ

CD4094BNSR

Texas InstrumentsIn Stock: 1373CD4094BNSR Datasheet

UpgradeRFQ

MC14094BDG

onsemiIn Stock: 7540MC14094BDG Datasheet

UpgradeRFQ

MC14094BDR2G

onsemiIn Stock: 16251MC14094BDR2G Datasheet

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HCF4094YM013TR

STMicroelectronicsIn Stock: 1499HCF4094YM013TR Datasheet

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HEF4094BT,653

Nexperia USA Inc.In Stock: 15257HEF4094BT,653 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BU4094BCF-E2 is determined by the following core parameters:

Functional Equivalence: All substitute parts must provide 8-bit shift register functionality with serial-to-parallel conversion and tri-state output capability.

Electrical Compatibility: Supply voltage range must encompass or exceed the 3V to 16V requirement. Operating temperature range must support the application's thermal environment.

Mechanical Compatibility: Package type must be surface-mount with 16-pin configuration. Pin-to-pin compatibility is required for direct board-level substitution.

Compliance Requirements: All parts must maintain RoHS3 compliance and REACH unaffected status.

Series Classification: Parts are grouped as direct upgrades (expanded voltage or temperature range) or similar alternatives (equivalent specifications with different manufacturers).

Parameter Comparison

Engineering Selection Recommendations

Direct Upgrade Options: CD4094BNSR, MC14094BDG, and MC14094BDR2G provide expanded operating temperature ranges (-55°C to 125°C) and increased supply voltage tolerance (up to 18V), making them suitable for applications requiring extended thermal performance beyond the BU4094BCF-E2 specification.

Package Consideration: CD4094BNSR uses a wider 16-SOIC package (5.30mm) compared to the BU4094BCF-E2 (4.40mm LSSOP). MC14094BDG and MC14094BDR2G use standard 16-SOIC (3.90mm) packages. Board layout modifications may be required for CD4094BNSR substitution.

Automotive-Grade Alternative: HCF4094YM013TR includes AEC-Q100 automotive qualification and supports extended voltage range (3V to 20V). This part carries MSL 3 rating, requiring controlled moisture exposure during storage and handling.

Standard Industrial Alternative: HEF4094BT,653 maintains the original operating temperature range (-40°C to 125°C) with MSL 1 rating and supports serial-to-parallel and serial functions. Supply voltage is limited to 3V to 15V, requiring verification for applications exceeding 15V.

All substitute parts maintain active production status, RoHS3 compliance, and REACH unaffected designation, ensuring regulatory consistency with the original BU4094BCF-E2.

Frequently Asked Questions (FAQ)

Q: Can CD4094BNSR replace BU4094BCF-E2 directly on the PCB?

A: CD4094BNSR is functionally equivalent but uses a wider 16-SOIC package (5.30mm) versus the BU4094BCF-E2 16-LSSOP (4.40mm). PCB footprint modification is required. MC14094BDG and MC14094BDR2G use narrower 16-SOIC packages (3.90mm) and may require less layout adjustment.

Q: What is the key difference between MC14094BDG and MC14094BDR2G?

A: Both parts are functionally and electrically identical. MC14094BDG is supplied in Tube packaging, while MC14094BDR2G is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on procurement and handling requirements.

Q: Is HCF4094YM013TR suitable for non-automotive applications?

A: Yes. HCF4094YM013TR meets automotive qualification standards but functions in standard industrial applications. The MSL 3 rating requires moisture control during storage. Applications not requiring automotive certification may prefer parts with MSL 1 rating for simplified handling.

Q: What is the voltage limitation for HEF4094BT,653?

A: HEF4094BT,653 operates within 3V to 15V supply range, which is narrower than the BU4094BCF-E2 (3V to 16V). Applications requiring 15.5V to 16V operation must use alternative substitutes with higher voltage ratings.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original BU4094BCF-E2 for EU and global markets.

Q: Which substitute offers the widest operating temperature range?

A: CD4094BNSR, MC14094BDG, and MC14094BDR2G all support -55°C to 125°C, providing 70°C additional low-temperature capability compared to the BU4094BCF-E2 (-40°C to 85°C).