SN74LS47DG4 Equivalent & Substitute Parts

Part Overview

The SN74LS47DG4 is a 7-segment LED driver IC manufactured by Texas Instruments, designed to convert BCD (Binary Coded Decimal) input signals into outputs suitable for driving common-cathode LED displays. This device is packaged in a 16-SOIC surface-mount configuration and operates within a 4.75V to 5.25V supply voltage range with a maximum supply current of 7 mA.

The SN74LS47DG4 has been discontinued at DiGi Electronics. Locating equivalent or substitute components is necessary to maintain design continuity and ensure project completion when original inventory is unavailable.

Substiute Parts

SN74LS47DG4

Texas InstrumentsIn Stock: 707SN74LS47DG4 Datasheet

Current PartRFQ

SN74LS47D

Texas InstrumentsIn Stock: 3510SN74LS47D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS47DG4 is determined by strict equivalence across the following critical parameters:

• Display Type: LED
• Configuration: 7 Segment
• Interface: BCD
• Current - Supply: 7 mA
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Base Product Number: 74LS47

The SN74LS47D meets all substitution criteria. Both parts share identical electrical specifications, package geometry, and functional characteristics. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS47D is a direct functional equivalent to the SN74LS47DG4. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The SN74LS47D carries Active product status, ensuring ongoing availability and supply chain continuity.

Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for industrial and commercial applications. The SN74LS47D is supplied in Tube packaging format, which is standard for production environments.

Selection of the SN74LS47D as a substitute for the discontinued SN74LS47DG4 presents no technical or compliance barriers for direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS47D replace the SN74LS47DG4 in my circuit?

A: Yes. Both parts are electrically and mechanically identical. They share the same BCD-to-7-segment LED driver functionality, supply voltage range (4.75V ~ 5.25V), current specifications (7 mA), operating temperature range (0°C ~ 70°C), and 16-SOIC package geometry.

Q: What is the difference between SN74LS47DG4 and SN74LS47D?

A: The primary differences are product status and packaging format. The SN74LS47DG4 is discontinued at DiGi Electronics, while the SN74LS47D maintains Active status. The SN74LS47D is supplied in Tube packaging. All electrical and functional specifications are identical.

Q: Are there any compliance or regulatory differences?

A: No. Both parts maintain ROHS3 compliance and REACH Unaffected status. There are no regulatory barriers to substitution.

Q: Is the 16-SOIC package identical between both parts?

A: Yes. Both parts use the 16-SOIC package with 0.154" (3.90mm) width. PCB footprints and assembly processes are identical.

Q: What inventory status should I expect?

A: The SN74LS47D has 3400 pieces of new original stock available. The SN74LS47DG4 has 639 pieces available but is discontinued at DiGi Electronics.