MAX491ECSD+Alternatives & Equivalent Parts
About MAX491ECSD+
MAX491ECSD+ is a Integrated Circuit component manufactured by Maxim Integrated. 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 | MAX491ECSD+Source | STM32F446RET6 | 1210L110/16WR | ATTINY3227-MU |
|---|---|---|---|---|
| Manufacturer | Maxim Integrated | STMicroelectronics | LITTELFUSE | Microchip |
| Package Type | Small Outline Packages | Quad Flat Packages | Fuses Chip | Quad Flat No-Lead |
| Pin Count | 14 | 64 | 2 | 24 |
| Temperature Range | ~ 70.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $3.0800 | $4.3300 | $0.3599 | $0.9200 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| Manufacturer Package Code | 14-SOIC_N-150_MIL | — | — | VQFN-24 |
| Date Of Intro | 1995-09-23 | — | — | — |
| YTEOL | 9 | 9 | 8.25 | 24 |
| Additional Feature | 1 RECEIVER ACTIVE UNDER SHUTDOWN; TRISTATABLE RECEIVER | — | — | OPERATES AT 1.8V MIN SUPPLY @ 5 MHZ |
| Differential Output | YES | — | — | — |
| Driver Number of Bits | 1 | — | — | — |
| High Level Input Current-Max | 0.000002 A | — | — | — |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER | — | — | — |
| Interface IC Type | LINE TRANSCEIVER | — | — | — |
| Interface Standard | EIA-422; EIA-485 | — | — | — |
| JESD-30 Code | R-PDSO-G14 | S-PQFP-G64 | — | S-PQCC-N24 |
| JESD-609 Code | e3 | e3 | e3 | — |
| Number of Functions | 1 | — | — | — |
| Out Swing-Min | 1.5 V | — | — | — |
| Output Characteristics | 3-STATE | — | — | — |
| Output Low Current-Max | 0.004 A | — | — | — |
| Output Polarity | COMPLEMENTARY | — | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 | QFP64,.47SQ,20 | — | LCC20,.16SQ,20 |
| Package Shape | RECTANGULAR | SQUARE | — | SQUARE |
| Package Style | SMALL OUTLINE | FLATPACK | SMT | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | 260 | — | — |
| Qualification Status | Not Qualified | Not Qualified | — | — |
| Receive Delay-Max | 150 ns | — | — | — |
| Receiver Number of Bits | 1 | — | — | — |
| Supply Current-Max | 0.5 mA | 115 mA | — | — |
| Supply Voltage-Max | 5.25 V | 3.6 V | — | 5.5 V |
| Supply Voltage-Min | 4.75 V | 1.7 V | — | 5 V |
| Supply Voltage-Nom | 5 V | 3.3 V | — | 5 V |
| Supply Voltage1-Max | 5.25 V | — | — | — |
| Supply Voltage1-Min | 4.75 V | — | — | — |
| Supply Voltage1-Nom | 5 V | — | — | — |
| Surface Mount | YES | YES | YES | YES |
| Technology | CMOS | CMOS | — | CMOS |
| Temperature Grade | COMMERCIAL | INDUSTRIAL | — | — |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | MATTE TIN | — |
| Terminal Form | GULL WING | GULL WING | — | NO LEAD |
| Terminal Pitch | 1.27 mm | 0.5 mm | — | 0.5 mm |
| Terminal Position | DUAL | QUAD | — | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | — | — |
| Transmit Delay-Max | 60 ns | — | — | — |
| Factory Lead Time | — | 15 Weeks | — | 17 Weeks |
| Has ADC | — | YES | — | YES |
| Address Bus Width | — | 24 | — | — |
| Bit Size | — | 32 | — | 8 |
| CPU Family | — | CORTEX-M4F | — | AVR |
| Clock Frequency-Max | — | 16 MHz | — | 20 MHz |
| DMA Channels | — | YES | — | NO |
| External Data Bus Width | — | 32 | — | — |
| Number of I/O Lines | — | 50 | — | 22 |
| On Chip Program ROM Width | — | 8 | — | 8 |
| PWM Channels | — | YES | — | YES |
| RAM (bytes) | — | 131072 | — | 3072 |
| ROM (words) | — | 524288 | — | 32768 |
| ROM Programmability | — | FLASH | — | FLASH |
| Speed | — | 180 MHz | — | 20 MHz |
| uPs/uCs/Peripheral ICs Type | — | MICROCONTROLLER, RISC | — | MICROCONTROLLER, RISC |
| ## STM32F446RET6 Alternates Showing results | — | Image | — | — |
| Reach Compliance Code | — | — | Compliant | — |
| Mounting Feature | — | — | SURFACE MOUNT | — |
| Package Height | — | — | 1.25 mm | — |
| Package Length | — | — | 3.43 mm | — |
| Package Width | — | — | 2.8 mm | — |
| Packing Method | — | — | TR, 7 INCH | — |
| Reference Standard | — | — | CUL; TUV; UL | — |
| Resistance | — | — | 0.06 Ω | — |
| Resistor Type | — | — | PTC RESETTABLE FUSE | — |
| Terminal Placement | — | — | DUAL ENDED | — |
| Terminal Shape | — | — | WRAPAROUND | — |
| Thermistor Application | — | — | OVERCURRENT PROTECTION | — |
| Working Voltage | — | — | 16 V | — |
| Boundary Scan | — | — | — | NO |
| DAC Channels | — | — | — | NO |
| Format | — | — | — | FIXED POINT |
| Integrated Cache | — | — | — | NO |
| Low Power Mode | — | — | — | YES |
| Number of External Interrupts | — | — | — | 22 |
| Number of Serial I/Os | — | — | — | 1 |
| Number of Timers | — | — | — | 3 |
| On Chip Data RAM Width | — | — | — | 8 |
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 all 3 alternatives for MAX491ECSD+ — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for MAX491ECSD+ 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 MAX491ECSD+ 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 MAX491ECSD+?
Known equivalents for MAX491ECSD+ include STM32F446RET6, 1210L110/16WR, ATTINY3227-MU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of MAX491ECSD+?
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 MAX491ECSD+ 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.