CD4056BME4 Equivalent & Substitute Parts

Part Overview

The CD4056BME4 is a 7-segment LCD driver integrated circuit manufactured by Texas Instruments, designed to interface BCD input signals with single-digit LCD display outputs. This component operates across a wide supply voltage range of 3V to 18V with minimal supply current of 40 nA, making it suitable for battery-powered and low-power applications.

The CD4056BME4 carries an Obsolete part status. Locating equivalent and substitute parts is necessary to maintain design continuity, ensure production availability, and support long-term product lifecycle management. Active and discontinued alternatives with identical or compatible electrical and mechanical specifications are available from the same manufacturer.

Substiute Parts

CD4056BME4

Texas InstrumentsIn Stock: 1138CD4056BME4 Datasheet

Current PartRFQ

CD4056BM96

Texas InstrumentsIn Stock: 64395CD4056BM96 Datasheet

DirectRFQ

CD4056BM

Texas InstrumentsIn Stock: 1913CD4056BM Datasheet

MFR RecommendedRFQ

CD4055BM

Texas InstrumentsIn Stock: 2689CD4055BM Datasheet

Parametric EquivalentRFQ

CD4543BM

Texas InstrumentsIn Stock: 1185CD4543BM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD4056BME4 are classified based on strict alignment with the following critical parameters:

Substitution Criteria:

• Display Type: LCD
• Configuration: 7 Segment
• Interface: BCD
• Digits or Characters: 1 Digit
• Current - Supply: 40 nA
• Voltage - Supply: 3V ~ 18V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed meet these electrical and mechanical specifications. Substitutes are grouped by product status and packaging configuration to facilitate selection based on availability and application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CD4056BM96

CD4056BM96 is the recommended direct substitute for CD4056BME4. This part maintains identical electrical specifications and package configuration while carrying Active product status. The part is available in Cut Tape and Digi-Reel packaging, providing flexibility for both prototype and production environments. Inventory availability of 64,340 units ensures supply continuity. ROHS3 compliance and MSL 1 rating match the original specification.

Secondary Substitute: CD4055BM

CD4055BM is a parametric equivalent with Active product status. All electrical parameters and package specifications are identical to CD4056BME4. This part is available in Tube packaging with 2,581 units in stock. Selection of CD4055BM is appropriate when CD4056BM96 availability is constrained.

Alternative Substitute: CD4056BM

CD4056BM is the manufacturer-recommended substitute, though it carries Discontinued at DiGi Electronics status. This part maintains full electrical and mechanical compatibility with CD4056BME4 and is available in Tube packaging with 1,900 units in inventory. This option is suitable for applications where existing supply channels remain active.

Tertiary Substitute: CD4543BM

CD4543BM is a parametric equivalent with Discontinued at DiGi Electronics status. All electrical specifications and package dimensions match CD4056BME4. This part is available in Tube packaging with 1,130 units in stock. Selection is appropriate for applications where design flexibility permits use of alternative base product numbers within the same functional category.

All substitute parts are ROHS3 compliant and carry MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can CD4056BM96 be used as a direct replacement for CD4056BME4?

A: Yes. CD4056BM96 meets all electrical and mechanical specifications of CD4056BME4, including supply voltage range (3V ~ 18V), supply current (40 nA), operating temperature range (-55°C ~ 125°C), and 16-SOIC package configuration. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tube) and product status (Active versus Obsolete).

Q: What is the difference between CD4056BM96 and CD4056BM?

A: Both parts are functionally identical with matching electrical specifications and 16-SOIC packaging. The primary differences are product status (CD4056BM96 is Active; CD4056BM is Discontinued at DiGi Electronics) and packaging type (CD4056BM96 is supplied in Cut Tape & Digi-Reel; CD4056BM is supplied in Tube).

Q: Are CD4055BM and CD4543BM compatible with CD4056BME4?

A: Both CD4055BM and CD4543BM are parametric equivalents with identical electrical specifications and 16-SOIC package configuration. They are compatible substitutes based on electrical and mechanical parameters. However, they carry different base product numbers (CD4055 and CD4543 respectively), which may require design documentation updates.

Q: What does "Discontinued at DiGi Electronics" mean for CD4056BM and CD4543BM?

A: This status indicates that these parts are no longer actively stocked or promoted by DiGi Electronics as a distributor. However, inventory may remain available through other supply channels or existing stock. Verification of availability through alternative suppliers is recommended before design selection.

Q: Does packaging type affect electrical performance?

A: No. Packaging type (Tube, Cut Tape, or Digi-Reel) does not affect electrical performance. All substitute parts deliver identical electrical specifications. Packaging selection is based on production volume, handling requirements, and supply chain logistics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (CD4056BM96, CD4056BM, CD4055BM, and CD4543BM) are ROHS3 compliant with MSL 1 rating, matching the compliance profile of CD4056BME4.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes, provided the PCB footprint accommodates the 16-SOIC (0.154", 3.90mm Width) package. All substitute parts use identical package geometry. No PCB redesign is required for electrical or mechanical compatibility.