MAX14805CCM+ - Low-Power RS-485 Transceiver | Maxim Integrated
MPN: MAX14805CCM+ ✗ End of LifeMAX14805CCM+ Overview
An RS-485 transceiver is a physical-layer interface IC that combines a differential line driver with a differential receiver. It belongs to the hierarchy of transceiver IC, interface IC, communications IC, and semiconductor. Unlike a single-ended logic interface, an RS-485 interface uses differential voltage and a common-mode reference, allowing two devices to communicate over a balanced bus while rejecting much of the noise found between the signal and its return path. The related RS-422 standard primarily describes balanced point-to-point signaling, whereas RS-485 additionally supports multipoint bus arrangements.
The key engineering characteristics to verify include supported data rate, transceiver operating mode, bus-driver and receiver electrical limits, supply voltage, shutdown behavior, propagation delay, and package pin configuration. These parameters determine whether the device can meet a specified protocol timing budget, cable-length target, or network topology. In particular, intended use of the MAX14805CCM+ in a half-duplex bus should be confirmed against its documented driver-enable and receiver-enable functions, as well as any bus-idle or fail-safe behavior.
The MAX14805CCM+ should also be evaluated for signal integrity and system behavior rather than treated only as a logic-level part. Cable termination, biasing, grounding, connector pin assignment, and protection against electrostatic discharge can affect real-world reliability. The integrated transceiver provides the physical-layer conversion, but network integrity still depends on the external passive components and the topology of connected nodes. A qualified design should preserve the published common-mode range and avoid exceeding the absolute maximum ratings under transient conditions.
Typical applications include industrial sensor and actuator networks, factory automation links, access-control equipment, instrumentation, building-control systems, and other isolated or distributed communications installations. In each case, the device can serve as the interface between a host controller with logic-level I/O and a balanced RS-485 or RS-422 physical layer. It may also be used in point-to-point RS-422 links when its electrical characteristics and pin functions satisfy that standard. Protocol handling remains the responsibility of a UART, microcontroller, transceiver controller, or other communications processor.
A critical design step is to verify the exact MAX14805CCM+ pinout and exposed-pad or thermal requirements from the manufacturer datasheet before laying out a PCB. Place input and output decoupling capacitors close to their supply pins, route the differential pair as a tightly coupled pair, and provide a clear return-path strategy. Avoid long unprotected stubs, use only the termination scheme appropriate to the bus topology, and validate operation across cable length, data rate, temperature, and grounding conditions.
This page provides a structured engineering framework for evaluating the MAX14805CCM+, including application suitability, unresolved datasheet parameters, commercial-data limitations, and verified drop-in-equivalent requirements. Because the supplied web search returned no component records or cross-reference results, missing electrical and mechanical values are explicitly marked rather than inferred, allowing engineers to distinguish confirmed product identity from data that still requires datasheet review.
Drop-in alternatives for MAX14805CCM+ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
No drop-in alternatives available for this product.
Request AlternativesMAX14805CCM+ Specifications
| Manufacturer | Maxim Integrated |
MAX14805CCM+ standard Pin Configuration Guide
Pin configuration for MAX14805CCM+ (standard package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for MAX14805CCM+.
Refer to the datasheet for full pin configuration.
Typical Applications
MAX14805CCM+ is suitable for 6 applications: Industrial Sensor Networks, Building Automation Networks, Factory Automation Equipment, Instrumentation and Test Equipment, Access-Control and Security Equipment, Distributed Environmental Monitoring.
Industrial Sensor Networks
The MAX14805CCM+ can be evaluated for an industrial sensor bus that connects remote sensing nodes to a central controller over a balanced cable. Differential signaling is useful in factory environments because it reduces sensitivity to common-mode interference relative to a single-ended link. The device should be selected only after its verified data rate, common-mode range, receiver thresholds, and supply limits match the network. PCB implementation must also preserve the required trace geometry, grounding, termination, and protection required by the complete bus specification.
Recommended
Building Automation Networks
The MAX14805CCM+ is relevant to building-automation equipment that connects controllers, room modules, sensors, and actuators through a wired differential bus. Such links can simplify grounding between equipment cabinets, but they still require controlled topology and verified transient performance. The engineer should confirm the exact operating temperature, ESD capability, supply range, and bus loading before adoption. External surge and common-mode protection should be selected according to the installation class rather than assumed from the transceiver rating alone.
Recommended
Factory Automation Equipment
The MAX14805CCM+ can be evaluated for data exchange between industrial controllers, motion equipment, remote I/O modules, and production machinery. The differential physical layer is well suited to wiring that crosses machinery or control cabinets, provided the complete network remains within the device's verified electrical limits. Engineers must validate behavior with the target cable length, node count, termination arrangement, and grounding scheme. A robust implementation should also include protection appropriate to industrial transients and conducted emissions.
Recommended
Instrumentation and Test Equipment
The MAX14805CCM+ may support controller-to-instrument communication where a short or medium-length balanced cable connects a measurement instrument to a host computer or embedded controller. The design must verify whether the selected transceiver's drive strength and receiver sensitivity suit the intended cable, termination, and data rate. Differential routing and a stable reference ground remain important even when both ends share a common enclosure. Before production, confirm the package pinout, exposed thermal requirements, and lifecycle availability from the manufacturer.
Recommended
Access-Control and Security Equipment
The MAX14805CCM+ can be considered for access-control readers, door controllers, and distributed security equipment connected through a wired differential network. The interface reduces the need for long single-ended interconnects, although cable routing and grounding can still affect reliability. The engineer should review the verified data rate, receiver threshold, common-mode range, temperature rating, and ESD performance. Production designs should also verify controller UART timing, bus direction control, fault recovery, and connector surge protection.
Recommended
Distributed Environmental Monitoring
The MAX14805CCM+ is applicable to environmental monitoring systems that connect remote temperature, humidity, air-quality, or water-level nodes over a shared cable. A differential bus can support a cleaner signal path across building or industrial spaces when topology, termination, and grounding are properly engineered. The selected device must meet the deployment's temperature range, cable length, node-count, and data-rate requirements. Engineers should also verify power-budget margins and add transient protection when sensors are connected to long outdoor or semi-outdoor cabling.
Recommended
Recommended Products Summary
Engineering reference data for MAX14805CCM+ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | Maxim Integrated |
Key Differentiators
- Exact-ordering-code documentation focus (vs Unverified generic RS-485 transceiver)
- Differential communication architecture (vs Single-ended logic interface)
- Transparent handling of unavailable verified values (vs Uncited substitute listings)
Design Notes
Route the differential pair as a tightly coupled pair with a continuous reference plane and minimize impedance discontinuities. Place termination components at the physical ends of the bus rather than beside every transceiver, and avoid long unterminated stubs. Because the supplied data does not confirm the package pinout or recommended layout, engineers must follow the exact MAX14805CCM+ datasheet land pattern and application circuit rather than relying on a generic RS-485 footprint.
Place the required input and output bypass capacitors adjacent to the device's supply and ground pins, and confirm the permitted supply range, capacitor technology, and effective capacitance from the manufacturer datasheet. Check the logic-level supply used by the connected controller against the transceiver's input thresholds. When several bus nodes share a source, verify startup current and rail droop rather than relying only on the transceiver's typical supply-current value.
Do not assume that two devices with the same package outline are interchangeable. Confirm enable polarity, driver timing, receiver enable, shutdown behavior, bus loading, common-mode range, and temperature grade. Also avoid leaving a powered driver connected to an uncontrolled bus when the host resets. Software should enforce a safe driver state and should not rely on floating control inputs, particularly when the transceiver can be damaged by sustained bus contention.
Evaluate the completed interface for radiated and conducted emissions because an unbalanced cable, long ground loops, or an incorrect termination can create common-mode currents even when the differential data is valid. Use a defined chassis and signal-ground strategy appropriate to the installation, minimize ground-loop area, and add surge protection where required. Validation should cover worst-case cable length, node count, data rate, operating mode, and the intended equipment enclosure.
Compliance Information
No verified compliance statements were present in the supplied source data. Compliance must be confirmed using the current manufacturer product page, material declaration, and applicable quality documentation.
