ST75C176B 데이터 시트보기 (PDF) - STMicroelectronics

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ST75C176B

Low power RS-485/RS-422 transceiver

STMicroelectronics 

ST75C176B

ST75C176C

Low power RS-485/RS-422 transceiver

Features

■ Low quiescent current: 300 mA

■ Designed for RS-485 interface applications

■ -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

DIP-8

■ 30 ns propagation delays, 5 ns skew

) ■ Operate from a single 5 V supply

t(s ■ Current limiting and thermal shutdown for

c driver overload protection

du ■ Allows up to 32 transceivers on the bus

ro ■ BiCMOS technology

te P Description

ole The ST75C176B/C is al low power transceiver for

s RS-485 and RS-422 communication. Each part

b contains one driver and one receiver.

- O This transceiver draw 300 mA (typ.) of supply

) current when unloaded or fully loaded with

t(s disabled drivers.

uc It operates from a single 5 V supply.

rod Driver is short-circuit current limited and is

protected against excessive power dissipation by

P thermal shutdown circuitry that placed the driver

te outputs into a high-impedance state. The receiver

le input has a fail safe feature that guarantees a

Obso logic-high output if the input is open circuit.

The ST75C176B/C is designed for bidirectional

data communications on multipoint bus

transmission line (half-duplex applications).

Table 1. Device summary

Order code

Temperature range

ST75C176CN

0 to 70 °C

ST75C176BN

-40 to 85 °C

November 2007

Package

DIP-8

DIP-8

Rev 4

Packaging

50parts per tube / 40tube per box

50parts per tube / 40tube per box

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