Product Summary

The ST485CDR is a low power transceiver for RS-485 and RS-422 communication. Each part contains one driver and one receiver. This transceiver draw 300mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5V supply. The ST485CDR is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applciations).

Parametrics

ST485CDR absolute maximum ratings: (1)Supply Voltage: 7 V; (2)Control Input Voltage (RE, DE): -0.5 to (VCC + 0.5) V; (3)Driver Input Voltage (DI): -0.5 to (VCC + 0.5) V; (4)Driver Output Voltage (A, B): ± 14 V; (5)Receiver Input Voltage (A, B): ± 14 V; (6)Receiver Output Voltage (RO): -0.5 to (VCC + 0.5) V.

Features

ST485CDR features: (1)Low quiescent current: 300mA; (2)Designed for RS-485 interface application; (3)-7V to 12V common mode input voltage range; (4)Driver maintains high impedance in 3-state or with the power OFF; (5)70mV tipycal input hysteresis; (6)30ns propagation delay, 5ns skew; (7)Operate from a single 5V supply; (8)Current limiting and thermal shutdown for driver overload protection; (9)Allows up to 64 transceivers on the bus.

Diagrams

ST485CDR pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ST485CDR
ST485CDR
STMicroelectronics
Buffers & Line Drivers Hi-Spd Lo Pwr Trans
Data Sheet
0-1: $0.59
1-10: $0.52
10-100: $0.41
100-250: $0.36
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ST483610LG
ST483610LG
Hammond Manufacturing
Enclosures, Boxes, & Cases
Data Sheet
Negotiable 
ST483612LG
ST483612LG
Hammond Manufacturing
Enclosures, Boxes, & Cases
Data Sheet
Negotiable 
ST483616LG
ST483616LG
Hammond Manufacturing
Enclosures, Boxes, & Cases
Data Sheet
Negotiable 
ST483616SS
ST483616SS
Hammond Manufacturing
Enclosures, Boxes, & Cases
Data Sheet
Negotiable 
ST485
ST485
Other

Data Sheet
Negotiable 
ST485A
ST485A
Other

Data Sheet
Negotiable