SN74HC540DWRAlternatives & Equivalent Parts
About SN74HC540DWR
SN74HC540DWR 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 | SN74HC540DWRSource | SN74HC540DW | SN74HC540DWG4 | SN74HC540DWE4 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages |
| Pin Count | 20 | 20 | 20 | 20 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $0.4230 | $0.2928 | $0.2928 | $0.2928 |
| Electrical Parameters | ||||
| Pbfree Code | Yes | Yes | Yes | Yes |
| YTEOL | 15 | 0 | 0 | 0 |
| Additional Feature | WITH DUAL OUTPUT ENABLE | WITH DUAL OUTPUT ENABLE | WITH DUAL OUTPUT ENABLE | WITH DUAL OUTPUT ENABLE |
| Control Type | ENABLE LOW | ENABLE LOW | ENABLE LOW | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL | UNIDIRECTIONAL | UNIDIRECTIONAL | UNIDIRECTIONAL |
| Family | HC/UH | HC | HC | HC |
| JESD-30 Code | R-PDSO-G20 | R-PDSO-G20 | R-PDSO-G20 | R-PDSO-G20 |
| JESD-609 Code | e4 | e4 | e4 | e4 |
| Load Capacitance (CL) | 150 pF | 150 pF | 50 pF | 150 pF |
| Logic IC Type | BUS DRIVER | BUS DRIVER | BUS DRIVER | BUS DRIVER |
| Max I(ol) | 0.006 A | 0.006 A | 0.006 A | 0.006 A |
| Number of Bits | 8 | 8 | 8 | 8 |
| Number of Functions | 8 | 1 | 1 | 1 |
| Number of Ports | 2 | 2 | 2 | 2 |
| Output Characteristics | 3-STATE | 3-STATE | 3-STATE | 3-STATE |
| Output Polarity | INVERTED | INVERTED | INVERTED | INVERTED |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 | SOP20,.4 | SOP20,.4 | SOP20,.4 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TR | TUBE | TUBE | TUBE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 |
| Power Supply Current-Max (ICC) | 0.08 mA | 0.08 mA | 0.08 mA | 0.08 mA |
| Prop. Delay@Nom-Sup | 25 ns | 25 ns | 25 ns | 25 ns |
| Propagation Delay (tpd) | 188 ns | 188 ns | 188 ns | 188 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 6 V | 6 V | 6 V | 6 V |
| Supply Voltage-Min (Vsup) | 2 V | 2 V | 2 V | 2 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V | 5 V |
| Surface Mount | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD | NICKEL PALLADIUM GOLD | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Bus Driver, HC Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20
Bus Driver, HC Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20
Why Look for Alternatives?
Finding alternatives for SN74HC540DWR 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 SN74HC540DWR 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.
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Request Alternatives for SN74HC540DWRFAQ
What is equivalent to SN74HC540DWR?
Known equivalents for SN74HC540DWR include SN74HC540DW, SN74HC540DWG4, SN74HC540DWE4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74HC540DWR?
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 SN74HC540DWR 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.