ISO721DAlternatives & Equivalent Parts
About ISO721D
ISO721D is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | ISO721DSource | ISO721DR | ISO7721D | ISO7421D | ISO721MD | ISO721DUB | ISO721DG4 | ISO722MD |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Other | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -55.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C |
| Price | $3.3009 | $2.4400 | $0.4223 | $1.1745 | $2.8784 | — | $3.1527 | $2.8354 |
| Electrical Parameters | ||||||||
| YTEOL | 0 | 15 | 0 | 15 | 0 | 0 | 0 | 0 |
| Additional Feature | ALSO OPERATES FROM 4.5 TO 5.5 V SUPPLY | ALSO OPERATES FROM 4.5 TO 5.5 V SUPPLY | — | — | ALSO OPERATES FROM 4.5 TO 5.5 V SUPPLY | ALSO OPERATES WITH 5 V SUPPLY | ALSO OPERATES FROM 4.5 TO 5.5 V SUPPLY | — |
| Interface IC Type | INTERFACE CIRCUIT | INTERFACE CIRCUIT | DIGITAL ISOLATOR | DIGITAL ISOLATOR | INTERFACE CIRCUIT | DIGITAL ISOLATOR | DIGITAL ISOLATOR | DIGITAL ISOLATOR |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 |
| JESD-609 Code | e4 | e4 | e4 | e4 | e4 | e4 | e4 | e4 |
| Number of Channels | 1 | 1 | 2 | 2 | 1 | — | 1 | 1 |
| Number of Functions | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 | 260 | 260 | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max | 5 V | 5 V | 5.5 V | 5 V | 5 V | 3.6 V | 5 V | 5 V |
| Supply Voltage-Min | 3.3 V | 3.3 V | 2.25 V | 3.3 V | 3.3 V | 3 V | 3.3 V | 3.3 V |
| Supply Voltage-Nom | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Surface Mount | YES | YES | YES | YES | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | — | CMOS | — | CMOS | BICMOS |
| Temperature Grade | AUTOMOTIVE | AUTOMOTIVE | MILITARY | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 2.54 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Pbfree Code | — | Yes | Yes | Yes | — | — | Yes | — |
| ## ISO721DR Alternates Showing results | — | Image | — | — | — | — | — | — |
| Date Of Intro | — | — | 2016-11-19 | — | — | — | — | — |
| Package Equivalence Code | — | — | SOP8,.25 | SOP8,.25 | — | — | — | — |
| ## ISO7721D Alternates Showing results | — | — | Image | — | — | — | — | — |
| ## ISO721MD Alternates Showing results | — | — | — | — | Image | — | — | — |
| Screening Level | — | — | — | — | — | — | — | IEC 62368-1; IEC 61010-1 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for ISO721D is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating ISO721D replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
Can't Find What You Need?
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Request Alternatives for ISO721DFAQ
What is equivalent to ISO721D?
Known equivalents for ISO721D include ISO721DR, ISO7721D, ISO7421D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ISO721D?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify ISO721D alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.