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ST485CDR
+NomenclatureIC TRANSCEIVER HALF 1/1 8SO
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FabricantSemi - conducteurs optiques
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Pièce fabricant #ST485CDR
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Fiche technique ST485CDR DataSheet
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Package SO-8
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En stock5868
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Receiver Hysteresis | 70 mV |
| Data Rate | 2.5Mbps |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
Présentation
Description
Equivalent
1. MAX485 by Maxim Integrated
2. SN75176 by Texas Instruments
3. ADM485 by Analog Devices
4. LTC1480 by Linear Technology (now Analog Devices)
5. SP485 by Exar Corporation
These chips offer similar RS-485/RS-422 communication capabilities with varying features and specifications. Always check the datasheets to confirm compatibility with your specific requirements.
Features
1. Supply Voltage: Operates with a supply voltage of 4.75V to 5.25V.
2. Data Rate: Supports data transmission rates up to 2.5 Mbps.
3. Bus Capacity: Can handle up to 32 nodes on the bus.
4. Input Impedance: Features a 12 kΩ input impedance.
5. Fail-safe: Includes fail-safe mechanisms for open, shorted, and terminated input conditions.
6. Wide Common Mode Range: Operates within a wide common mode range of -7V to +12V.
7. Low Power Consumption: Incorporates a low power design with reduced standby power mode.
8. Thermal Protection: Equipped with thermal shutdown protection.
9. Short Circuit Protection: Offers protection against short circuits on the bus lines.
10. Enhanced ESD Protection: Provides enhanced electrostatic discharge protection.
This makes the ST485CDR suitable for robust and reliable serial communication in industrial and commercial applications, ensuring efficient data exchange over long distances.
Pinout
1. RO (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Output Enable): Active low input to enable the receiver output.
3. DE (Driver Enable): Enables the driver when high.
4. DI (Driver Input): Input for the data to be transmitted.
5. GND (Ground): Ground reference.
6. A (Non-inverting Receiver Input/Driver Output): Connects to the bus line.
7. B (Inverting Receiver Input/Driver Output): Connects to the bus line.
8. VCC (Positive Supply Voltage): Power supply input.
The ST485CDR facilitates half-duplex communication with differential signaling, offering robustness against noise and long-distance data transmission.
Manufacturer
Application
1. Industrial Automation: Facilitates robust communication between programmable logic controllers (PLCs) and other industrial equipment.
2. Building Automation: Used in HVAC systems for reliable data transmission.
3. Networking: Supports data transfer in local area networks (LANs).
4. Security Systems: Ensures effective communication in surveillance and alarm systems.
5. Telecommunications: Utilized in infrastructure for data exchange over long distances.
6. Energy Management: Integrates into smart grid systems for data communication.
Its noise immunity and differential signaling make it ideal for environments requiring reliable data transmission over long distances.