SN74HCS21DRAlternatives & Equivalent Parts
About SN74HCS21DR
SN74HCS21DR 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 | SN74HCS21DRSource | SN74HCS21QDRQ1 | SN74LVC2G00DCUT | SN74HCS30DR | SN74HCS21PWR | SN74HCS21QPWRQ1 |
|---|---|---|---|---|---|---|
| Manufacturer | 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 | Small Outline Packages |
| Pin Count | 14 | 14 | 8 | 14 | 14 | 14 |
| Temperature Range | -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 | -40.0°C ~ 125.0°C |
| Price | $0.2636 | $0.3407 | $0.2109 | — | $0.1838 | $0.3365 |
| Electrical Parameters | ||||||
| Pbfree Code | Yes | Yes | Yes | Yes | Yes | Yes |
| Date Of Intro | 2020-07-04 | 2020-02-27 | — | 2020-07-04 | 2020-03-06 | 2020-02-27 |
| YTEOL | 15 | 15 | 15 | 15 | 15 | 15 |
| Family | HC/UH | HC/UH | LVC/LCX/Z | HC/UH | HC/UH | HC/UH |
| JESD-30 Code | R-PDSO-G14 | R-PDSO-G14 | R-PDSO-G8 | R-PDSO-G14 | R-PDSO-G14 | R-PDSO-G14 |
| JESD-609 Code | e4 | e4 | e3 | e4 | e4 | e4 |
| Load Capacitance (CL) | 50 pF | 50 pF | 50 pF | 50 pF | 50 pF | 50 pF |
| Logic IC Type | AND GATE | AND GATE | NAND GATE | NAND GATE | AND GATE | AND GATE |
| Max I(ol) | 0.0078 A | 0.0078 A | 0.032 A | 0.0078 A | 0.0078 A | 0.0078 A |
| Number of Functions | 2 | 2 | 2 | 1 | 2 | 2 |
| Number of Inputs | 4 | 4 | 2 | 8 | 4 | 4 |
| Output Characteristics | TOTEM POLE | TOTEM POLE | 3-STATE | TOTEM POLE | TOTEM POLE | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.24 | SOP14,.25 | TSSOP8,.12,20 | SOP14,.25 | TSSOP14,.25 | TSSOP14,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH | SMALL OUTLINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR | TR | TR | TR | TR | TR |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 | 260 | 260 |
| Power Supply Current-Max (ICC) | 0.002 mA | 0.002 mA | 0.01 mA | 0.002 mA | 0.002 mA | 0.002 mA |
| Prop. Delay@Nom-Sup | 22 ns | 22 ns | 4.3 ns | 28 ns | 22 ns | 22 ns |
| Propagation Delay (tpd) | 52 ns | 52 ns | 8.6 ns | 46 ns | 52 ns | 52 ns |
| Schmitt Trigger | YES | YES | NO | YES | YES | YES |
| Supply Voltage-Max (Vsup) | 6 V | 6 V | 5.5 V | 6 V | 6 V | 6 V |
| Supply Voltage-Min (Vsup) | 2 V | 2 V | 1.65 V | 2 V | 2 V | 2 V |
| Supply Voltage-Nom (Vsup) | 4.5 V | 5 V | 3.3 V | 4.5 V | 5 V | 5 V |
| Surface Mount | YES | YES | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Temperature Grade | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin (Sn) | 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 |
| Terminal Pitch | 1.27 mm | 1.27 mm | 0.5 mm | 1.27 mm | 0.65 mm | 0.65 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 | 30 | 30 | 30 |
| ## SN74HCS21DR Alternates Showing results | Image | — | — | — | — | — |
| Screening Level | — | AEC-Q100 | — | — | — | AEC-Q100 |
| ## SN74HCS21QDRQ1 Alternates Showing results | — | Image | — | — | — | — |
| Qualification Status | — | — | Not Qualified | — | — | — |
| ## SN74LVC2G00DCUT Alternates Showing results | — | — | Image | — | — | — |
| ## SN74HCS30DR Alternates Showing results | — | — | — | Image | — | — |
| ## SN74HCS21PWR Alternates Showing results | — | — | — | — | Image | — |
| ## SN74HCS21QPWRQ1 Alternates Showing results | — | — | — | — | — | Image |
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 SN74HCS21DR 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 SN74HCS21DR 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?
Our sourcing team can help find compatible alternatives for SN74HCS21DR. Get expert recommendations within 24 hours.
Request Alternatives for SN74HCS21DRFAQ
What is equivalent to SN74HCS21DR?
Known equivalents for SN74HCS21DR include SN74HCS21QDRQ1, SN74LVC2G00DCUT, SN74HCS30DR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74HCS21DR?
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 SN74HCS21DR 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.