ST75C176B Datasheet, PDF (1/17 Pages) STMicroelectronics – Low power RS-485/RS-422 transceiver

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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