SN74LS247D Equivalent & Substitute Parts

Part Overview

The SN74LS247D 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 operates within a 4.75V to 5.25V supply voltage range and draws 7 mA during operation, making it suitable for standard TTL logic applications requiring display interface functionality.

The SN74LS247D has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and new system implementations.

Substiute Parts

SN74LS247D

Texas InstrumentsIn Stock: 1190SN74LS247D Datasheet

Current PartRFQ

SN74LS247DR

Texas InstrumentsIn Stock: 2437SN74LS247DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LS247D are identified based on 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: Surface Mount
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Base Product Number: 74LS247

The SN74LS247DR qualifies as a direct substitute because it maintains identical electrical specifications, package dimensions, and functional characteristics. The primary distinction is packaging format: the SN74LS247DR is supplied in Tape & Reel (TR) format, whereas the SN74LS247D uses standard packaging. Both parts share the same base product number (74LS247) and are manufactured by Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS247DR is the direct equivalent substitute for the SN74LS247D. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The SN74LS247DR is currently in active production status, whereas the SN74LS247D has been discontinued at DiGi Electronics.

Selection between these parts should be based on packaging requirements and supply chain considerations. The SN74LS247DR, supplied in Tape & Reel format, is suitable for high-volume automated assembly processes. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility for current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS247DR be used as a direct replacement for the SN74LS247D?

A: Yes. Both parts are electrically and mechanically identical. They share the same base product number (74LS247), manufacturer, and all critical specifications including supply voltage (4.75V ~ 5.25V), current draw (7 mA), operating temperature range (0°C ~ 70°C), and 16-SOIC package dimensions.

Q: What is the difference between SN74LS247D and SN74LS247DR?

A: The primary difference is packaging format. The SN74LS247D uses standard packaging, while the SN74LS247DR is supplied in Tape & Reel (TR) format. This distinction affects handling, storage, and automated assembly compatibility but does not impact electrical performance or functionality.

Q: Why is the SN74LS247D discontinued?

A: The SN74LS247D has been discontinued at DiGi Electronics. The SN74LS247DR remains in active production and serves as the current equivalent part for new designs and component replenishment.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74LS247D and SN74LS247DR maintain identical RoHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level (MSL) rating of 1 (Unlimited).

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: display type (LED), configuration (7 Segment), interface (BCD), supply voltage range (4.75V ~ 5.25V), current draw (7 mA), operating temperature range (0°C ~ 70°C), mounting type (Surface Mount), and package specification (16-SOIC with 0.154" / 3.90mm width).