Maxim MAX3491CSD+

收发器RS422，RS48510Mbps

Overview

The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491CSD are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491CSD transmit at up to 10Mbps. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places 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 MAX3488, MAX3490, and MAX3491CSD feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.

Features

Tube Package
Tube package
14 pin count
14 pins
3.3V power supply

50 mV Receiver Hysteresis

Applications

There are a lot of Maxim Integrated
MAX3491CSD+ Drivers/Receivers/Transceivers applications.

• Televisions
• Cell phones
• Wireless modems
• Remote controls
• Wireless network systems
• Satellite communications networks
• Ethernet circuitry
• Wired telephone
• Cordless telephone
• Desktop PC