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ST485A

Features: · LOW SUPPLY CURRENT: 5mA MAX· HIGH DATA RATE > 30Mbps· DESIGNED FOR RS 485 INTERFACE APPLICATIONS· -7 TO 12 COMMON MODE INPUT VOLTAGE RANGE· DRIVER MANTAINS HIGH IMPEDANCE IN 3-STATE OR WITH THE POWER OFF· 70mV TYPICAL INPUT HYSTERESIS· OPERATE FROM SINGLE 5 SUPPLY· ±4kV ESD PROTECTI...

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SeekIC No. : 004506527 Detail

ST485A: Features: · LOW SUPPLY CURRENT: 5mA MAX· HIGH DATA RATE > 30Mbps· DESIGNED FOR RS 485 INTERFACE APPLICATIONS· -7 TO 12 COMMON MODE INPUT VOLTAGE RANGE· DRIVER MANTAINS HIGH IMPEDANCE IN 3-STATE O...

ST485A Data Sheet

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Part Number:
ST485A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

· LOW SUPPLY CURRENT: 5mA MAX
· HIGH DATA RATE > 30Mbps
· DESIGNED FOR RS 485 INTERFACE APPLICATIONS
· -7 TO 12 COMMON MODE INPUT VOLTAGE RANGE
· DRIVER MANTAINS HIGH IMPEDANCE IN 3-STATE OR WITH THE POWER OFF
· 70mV TYPICAL INPUT HYSTERESIS
· OPERATE FROM SINGLE 5 SUPPLY
· ±4kV ESD PROTECTION
· CURRENT LIMITING AND THERMAL SHUTDOWN FOR DRIVER OVERLOAD PROTECTION
· LATCH-UP FREE UP TO 500mA


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
VCC
 Supply Voltage
7
V
VI
 Control Input Voltage (RE, DE)
-0.3 to 7
V
VDI
 Driver Input Voltage (DI)
-0.3 to 7
V
VDO
 Driver Output Voltage (A, B)
-7.5 to 12.5
V
VRI
 Receiver Input Voltage (A, B)
-7.5 to 12.5
V
VRO
 Receiver Output Voltage (RO)
-0.3 to (VCC + 0.3)
V
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.


Description

The ST485A is a low power, high speed transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration. The ST485A draws 3mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5V supply.

Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic high output if both inputs are open circuit.

The ST485A is designed for bi-directional data communications or multipoint bus transmission lines.




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