Datasheet Texas Instruments DS485TM — 数据表

DS485
www.ti.com SNLS122C – JULY 1998 – REVISED APRIL 2013 DS485 Low Power RS-485/RS-422 Multipoint Transceiver
Check for Samples: DS485 FEATURES DESCRIPTION The DS485 is a low-power transceiver for RS-485
and RS-422 communication. The device contains one
driver and one receiver. The drivers slew rate allows
for operation up to 2.5 Mbps (see Applications
Information section). 1 Meets TIA/EIA RS-485 Multipoint Standard
ensured Full Load Output Voltage (V OD3)
Low Quiescent Current: 200 ОјA typ
-7V to +12V Common-Mode Input Voltage
Range
TRI-STATE Outputs on Driver and Receiver
AC Performance:
– Driver Transition Time: 25 ns typ
– Driver Propagation Delay: 40 ns typ
– Driver Skew: 1 ns typ
– Receiver Propagation Delay: 200 ns typ
– Receiver Skew: 20 ns typ
Half-Duplex Flow Through Pinout
Operates From a Single 5V Supply
Allows Up To 32 Transceivers on the Bus
Current-Limiting and Thermal Shutdown For
Driver Overload Protection …