explain
The SN65HVD10, SN75HVD10, SN65HVD11, SN75HVD11, SN65HVD12, and SN75HVD12 bus transceivers all incorporate a tri state differential line driver and a differential input line receiver powered by a 3.3V single power supply. These devices are designed for balanced transmission lines and meet or exceed ANSI standards TIA/EIA-485-A and ISO 8482:1993. These differential bus transceivers are monolithic integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. The driver and receiver have high level active and low level active enable terminals, which can be externally connected together for direction control. Very low device standby power current can be achieved by disabling the driver and receiver.
The driver differential output and receiver differential input are internally connected to form a differential input/output (I/O) bus port, which is designed to provide minimum load to the bus when the driver is disabled or VCC=0. These devices have a wide range of positive and negative common mode voltages, so they are suitable for collinear applications.
characteristic
• 3.3V power supply
• Bus pin ESD protection exceeds 16kV HBM
• 1/8 unit load option (up to 256 nodes on the bus)
• The number of selectable driver output conversions for the signal transmission rate is 11
Mbps, 10 Mbps and 32Mbps optional
• Meet or exceed the requirements of ANSI TIA/EIA-485-A
• – Short circuit protection of bus pins from 7V to 12V
• Low current standby mode: 1 µ A, typical
• Fail safe receiver for open circuit, idle bus and short circuit bus
• Thermal shutdown protection
• Interference free power on and power off protection for hot plug applications
• SN75176 package
application
• Digital motor control
• Utility meters
• Chassis to chassis interconnection
• Electronic security station
• Industrial process control
• Building automation
• POS terminals and networks
