SLLS257C - AUGUST 1996 - REVISED OCTOBER 1997
PC/AT is a trademark of IBM Corporation.
The SN75LP185 is a low-power bipolar device containing three drivers and five receivers with 15 kV of ESD protection on the bus pins. The pinout matches the flow-through design of the industry-standard SN75185 and SN75C185. The flow-through pinout of the LP185 allows easy interconnection of the UART and serial-port connector of the IBM PC/AT and compatibles. The LP185 provides a rugged, low-cost solution for this function with the combination of the bipolar processing and 15 kV of ESD protection.
The SN75LP185 has internal slew rate control to provide a maximum rate of change in the output signal of 30 V/us. The driver output swing is nominally clamped at ±6 V to enable the higher data rates associated with this device and to reduce EMI emissions. Even though the driver outputs are clamped, they can handle voltages up to ±15 V without damage. All the logic inputs can accept 3.3-V or 5-V input signals.
The SN75LP185 complies with the requirements of the ANSI EIA/TIA-232-E and the ITU v.28 standards. These standards are for data interchange between a host computer and peripheral at signaling rates up to 20 kbps. The switching speeds of the SN75LP185 support rates up to 256 kbps.
The SN75LP185 is characterized for operation from 0°C to 70°C.
View more information about generic part numbers:SN75LP185
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