ST485B LOW POWER RS-485/RS-422 TRANSCEIVER

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 300 μA (typ.) of supply current when unloaded or fully loaded with disabled drivers.

It operates from a single 5 V 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 applications).

The ST485 is available in three temperature range: commercial (0 °C to 70 °C), industrial (- 40 °C to 85 °C) and automotive (- 55 °C to 125 °C).

技术特性

Low quiescent current: 300 μA
Designed for RS-485 interface application
- 7 V to 12 V common mode input voltage range
Driver maintains high impedance in 3-state or with the power OFF
70 mV typical input hysteresis
30 ns propagation delay, 5 ns skew
Operate from a single 5 V supply
Current limiting and thermal shutdown for driver overload protection
Allows up to 64 transceivers on the bus

ST485B 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
ST485BDR	Active	0.783	1000	SO-8	Tape And Reel	-40 °C-85 °C	ST485BDR
ST485BN	Active	0.848	1000	DIP-8	Tube	-40 °C-85 °C	ST485BN

DATASHEET

下载	描述	版本	大小
ST485B	DS2037: Low power RS-485/RS-422 transceiver	16	720KB