SN74LS47NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS47NG4 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 component is classified as a Power Management (PMIC) device and is packaged in a 16-pin DIP format for through-hole mounting applications.

The SN74LS47NG4 has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or repair requirements for systems utilizing this driver IC.

Substiute Parts

SN74LS47NG4

Texas InstrumentsIn Stock: 1067SN74LS47NG4 Datasheet

Current PartRFQ

SN74LS47N

Texas InstrumentsIn Stock: 8092SN74LS47N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LS47NG4 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
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Supplier Device Package: 16-PDIP
• Base Product Number: 74LS47

The SN74LS47N qualifies as a direct substitute because it maintains identical electrical specifications, mechanical packaging, and functional characteristics across all critical parameters. The primary distinction is product status: SN74LS47N is currently active and available in inventory, whereas SN74LS47NG4 is discontinued.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS47N is the manufacturer-recommended substitute for the discontinued SN74LS47NG4. Both components are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The SN74LS47N maintains active product status with significantly higher inventory availability (8023 units versus 1014 units), ensuring reliable supply chain access for new designs and production requirements.

Both parts comply with ROHS3 and REACH standards, confirming environmental and regulatory compatibility. The substitution presents no technical or compliance barriers for direct replacement in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS47N be used as a direct replacement for the SN74LS47NG4?

A: Yes. The SN74LS47N is electrically and mechanically identical to the SN74LS47NG4 across all critical parameters: supply voltage, current consumption, operating temperature range, BCD interface, 7-segment LED configuration, and 16-PDIP package format. Direct substitution requires no circuit modifications.

Q: Are there any differences in packaging between these parts?

A: No. Both the SN74LS47NG4 and SN74LS47N use identical 16-DIP (0.300", 7.62mm) through-hole packaging with 16-PDIP supplier device package designation. Pin-to-pin compatibility is guaranteed.

Q: What is the significance of the product status difference?

A: The SN74LS47NG4 is discontinued at DiGi Electronics, meaning it is no longer actively produced or distributed through standard channels. The SN74LS47N is an active product with current manufacturing and distribution support, ensuring long-term availability and supply chain reliability.

Q: Do both parts meet the same regulatory and environmental standards?

A: Yes. Both the SN74LS47NG4 and SN74LS47N are ROHS3 compliant and REACH unaffected, confirming compliance with current environmental and regulatory requirements.

Q: Are there any functional differences in LED driving capability?

A: No. Both parts operate at identical supply voltage (4.75V ~ 5.25V), supply current (7 mA), and temperature range (0°C ~ 70°C). The BCD-to-7-segment conversion logic and output drive characteristics are functionally equivalent.