SN74HC646DWRAlternatives & Equivalent Parts
About SN74HC646DWR
SN74HC646DWR 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.
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Specification Comparison
| Parameter | SN74HC646DWRSource | SN74HC652DWG4 |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages |
| Pin Count | 24 | 24 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $0.7918 | — |
| Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | OBSOLETE |
| Electrical Parameters | ||
| Pbfree Code | Yes | — |
| YTEOL | 15 | 0 |
| Additional Feature | WITH DIRECTION CONTROL | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION |
| Control Type | INDEPENDENT CONTROL | INDEPENDENT CONTROL |
| Count Direction | BIDIRECTIONAL | BIDIRECTIONAL |
| Family | HC/UH | HC/UH |
| JESD-30 Code | R-PDSO-G24 | R-PDSO-G24 |
| JESD-609 Code | e4 | e4 |
| Load Capacitance (CL) | 150 pF | 150 pF |
| Logic IC Type | REGISTERED BUS TRANSCEIVER | REGISTERED BUS TRANSCEIVER |
| Max I(ol) | 0.0078 A | 0.006 A |
| Number of Bits | 8 | 8 |
| Number of Functions | 8 | 1 |
| Number of Ports | 2 | 2 |
| Output Characteristics | 3-STATE | 3-STATE |
| Output Polarity | TRUE | TRUE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP24,.4 | SOP24,.4 |
| Package Shape | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TR | TUBE |
| Peak Reflow Temperature (Cel) | 260 | 260 |
| Power Supply Current-Max (ICC) | 0.08 mA | 0.08 mA |
| Prop. Delay@Nom-Sup | 29 ns | 34 ns |
| Propagation Delay (tpd) | 330 ns | 330 ns |
| Qualification Status | Not Qualified | Not Qualified |
| Schmitt Trigger | NO | — |
| Supply Voltage-Max (Vsup) | 6 V | 6 V |
| Supply Voltage-Min (Vsup) | 2 V | 2 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V |
| Surface Mount | YES | YES |
| Technology | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 |
| Trigger Type | POSITIVE EDGE | POSITIVE EDGE |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering this alternative for SN74HC646DWR — response within 24 hours.
Quick Links
Registered Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, True Output, CMOS, PDSO24
Why Look for Alternatives?
Finding alternatives for SN74HC646DWR 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 SN74HC646DWR 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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FAQ
What is equivalent to SN74HC646DWR?
Known equivalents for SN74HC646DWR include SN74HC652DWG4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74HC646DWR?
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 SN74HC646DWR 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.