ST4827786AA, ST482I, ST485 Selling Leads, Datasheet
MFG:ST Package Cooled:99+ D/C:SOP
ST4827786AA, ST482I, ST485 Datasheet download
Part Number: ST4827786AA
MFG: ST
Package Cooled: 99+
D/C: SOP
ST4827786AA, ST482I, ST485
- Table of contents:
Info of ST4827786AA
Info of ST482I
Info of ST485
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About ST4
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Datasheet: ST4
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About ST4
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Datasheet: ST4
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About ST485
PDF/DataSheet Download
Datasheet: ST485
File Size: 309795 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
ST485 General Description
The ST485 is al low power transceiver for RS-485 and RS-422 communication. Each part contains one driver and one receiver.
This transceiver draw 300A (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 placed the driver outputs into a high-impedance state. .
The ST485 is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applciations).
The ST485 is available in three temperature range: commercial (0°C to 70°C), industrial (-40°C to 850°C) and automotive (-55°C to 125°C)
ST485 Maximum Ratings
| Symbol | Parameter |
Value |
Unit |
| VCC | Supply Voltage |
7 |
V |
| VI | Control Input Voltage (RE, DE) |
-0.5 to (VCC + 0.5) |
V |
| VDI | Driver Input Voltage (DI) |
-0.5 to (VCC + 0.5) |
V |
| VDO | Driver Output Voltage (A, B) |
± 14 |
V |
| VRI | Receiver Input Voltage (A, B) |
± 14 |
V |
| VRO | Receiver Output Voltage (RO) |
-0.5 to (VCC + 0.5) |
V |
ST485 Features
` LOW QUIESCENT CURRENT: 300A
` DESIGNED FOR RS-485 INTERFACE APPLICATIONS
` -7V TO 12V COMMON MODE INPUT VOLTAGE RANGE
` DRIVER MAINTAINS HIGH IMPEDANCE IN 3-STATE OR WITH THE POWER OFF
` 70mV TYPICAL INPUT HYSTERESIS
` 30ns PROPAGATION DELAYS, 5ns SKEW
` OPERATE FROM A SINGLE 5V SUPPLY
` CURRENT LIMITING AND THERMAL
SHUTDOWN FOR DRIVER OVERLOAD PROTECTION
` ALLOWS UP TO 64 TRANSCEIVERS ON THE BUS
` DESIGNED FOR RS-485 INTERFACE APPLICATIONS
` -7V TO 12V COMMON MODE INPUT VOLTAGE RANGE
` DRIVER MAINTAINS HIGH IMPEDANCE IN 3-STATE OR WITH THE POWER OFF
` 70mV TYPICAL INPUT HYSTERESIS
` 30ns PROPAGATION DELAYS, 5ns SKEW
` OPERATE FROM A SINGLE 5V SUPPLY
` CURRENT LIMITING AND THERMAL
SHUTDOWN FOR DRIVER OVERLOAD PROTECTION
` ALLOWS UP TO 64 TRANSCEIVERS ON THE BUS
ST485 Connection Diagram
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