Product Summary

The MAX3485EPA is a 3.3V low-power transceiver for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3485EPA features 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 MAX3485EPA transmits at up to 10Mbps. The applications of the MAX3485EPA include Low-Power RS-485/RS-422 Transceivers, Telecommunications, Transceivers for EMI-Sensitive Applications, Industrial-Control Local Area Networks.

Parametrics

MAX3485EPA absolute maximum ratings: (1)Supply Voltage (VCC): 7V; (2)Control Input Voltage (RE, DE): -0.3V to 7V; (3) Driver Input Voltage (DI): -0.3V to 7V; (4)Driver Output Voltage (A, B, Y, Z): -7.5V to 12.5V; (5)Receiver Input Voltage (A, B): -7.5V to 12.5V; (6)Receiver Output Voltage (RO): -0.3V to (VCC + 0.3V); (7)8-Pin Plastic DIP (derate 9.09mW/℃ above +70℃): 727mW; (8)8-Pin SO (derate 5.88mW/℃ above +70℃): 471mW; (9)14-Pin Plastic DIP (derate 10mW/℃ above +70℃): 800mW; (10)14-Pin SO (derate 8.33mW/℃ above +70℃): 667mW; (11)Operating Temperature Ranges: 0℃ to +70℃; (12)Storage Temperature Range: -65℃ to +160℃; (13)Lead Temperature (soldering, 10sec): +300℃.

Features

MAX3485EPA features: (1)Operate from a Single 3.3V Supply—No Charge Pump!; (2)Interoperable with +5V Logic; (3)8ns Max
Skew; (4)Slew-Rate Limited for Errorless Data Transmission; (5)2nA Low-Current Shutdown Mode; (6)-7V to +12V Common-Mode Input Voltage Range; (7)Allows up to 32 Transceivers on the Bus; (8)Full-Duplex and Half-Duplex Versions Available; (9)Industry Standard 75176 Pinout; (10)Current-Limiting and Thermal Shutdown for Driver Overload Protection.

Diagrams

MAX3485EPA block diagram 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX3485EPA
MAX3485EPA

Maxim Integrated Products

RS-422/RS-485 Interface IC

Data Sheet

Negotiable 
MAX3485EPA+
MAX3485EPA+

Maxim Integrated Products

RS-422/RS-485 Interface IC

Data Sheet

Negotiable