MAX14780EEPA+ Maxim Integrated Integrated Circuit (Dual-In-Line Packages) In Stock
The MAX14780EEPA+ is a single-driver RS-422/RS-485 line transceiver from Maxim Integrated operating on a 4.5 V to 5.5 V supply with Schmitt-trigger inputs and differential output, housed in an 8-pin DIP package for robust industrial serial communications.
- Manufacturer
- Maxim Integrated
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MAX14780EEPA+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.7728(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Supports both EIA-422 and EIA-485 (TIA-485) standards in one device for flexible differential bus connectivity
- Schmitt-trigger inputs for improved noise immunity on long industrial cable runs
- 4.5 V to 5.5 V supply voltage range compatible with 5 V logic systems
- Single driver with differential output for point-to-point RS-422 or multi-drop RS-485 bus topologies
- 8-pin DIP-8 (300-mil) package for breadboard prototyping and through-hole industrial PCB designs
Applications
The MAX14780EEPA+ is designed for industrial serial communication applications including PLC networks, SCADA systems, and factory automation equipment that require reliable RS-485 multi-drop or RS-422 point-to-point differential signaling. Its Schmitt-trigger input and robust 4.5 V to 5.5 V supply range make it ideal for noise-prone environments such as motor control panels and building automation controllers. The through-hole DIP-8 package suits ruggedized or prototype designs where easy socketing and board serviceability are priorities.
Specifications
| Manufacturer Package Code | 8-PDIP-300_MIL |
| Date Of Intro | 2011-01-03 |
| YTEOL | 10 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422; EIA-485; TIA-485 |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Out Swing-Min | 2V |
| Output Low Current-Max | 0.001A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 200ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 1.8mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 1000ns |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the operating supply voltage range of MAX14780EEPA+ and which logic families does it match?
The MAX14780EEPA+ operates from 4.5 V to 5.5 V, making it directly compatible with 5 V TTL and 5 V CMOS logic families. This supply range ensures reliable differential output levels meeting EIA-485 and EIA-422 specifications across the full industrial temperature range, without needing additional voltage regulation.
How does the Schmitt-trigger input on MAX14780EEPA+ benefit RS-485 installations in electrically noisy environments?
The Schmitt-trigger input provides hysteresis on signal transitions, typically around 0.4 V, which suppresses noise spikes and ringing on long cable runs up to several hundred meters. In industrial environments with variable-frequency drives or relay switching nearby, this prevents false triggering and data errors on the RS-485 differential bus.
When is MAX14780EEPA+ preferred over a MAX485 in RS-485 network designs?
The MAX14780EEPA+ is preferred when EIA-422 point-to-point full-duplex communication is needed alongside RS-485 multi-drop support, because it meets both interface standards simultaneously. Additionally, its extended industrial-grade temperature range and Schmitt-trigger input make it more robust than basic RS-485 drivers in harsh environments with significant electrical noise or temperature extremes beyond 0°C to 70°C.
Can MAX14780EEPA+ drive RS-485 bus loads and what is the maximum number of unit loads it can handle?
The MAX14780EEPA+ is a single-driver device compliant with EIA-485, which defines each unit load as 12 kΩ. A standard RS-485 bus can support up to 32 unit loads, meaning the MAX14780EEPA+ driver can maintain valid differential output voltage (at least 1.5 V) across a 120 Ω terminated bus with up to 32 receivers connected, suitable for typical industrial multi-drop installations.
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About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $5.3700 | $537.00 |
| 150+ | $3.9827 | $597.40 |
| 500+ | $3.9771 | $1988.55 |
| 1000+ | $3.8777 | $3877.72 |
| 2500+ | $3.7728 | $9432.07 |
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