Meets ANSI EIA/TIA-232-E and ITU
Recommendation V.28
Very Low Supply Current
Sleep Mode:
3-State Outputs in High-Impedance State
Ultra-Low Supply Current . . . 17 mA Typ
Improved Functional Replacement for:
SN75188,
Motorola MC1488,
National Semiconductor DS14C88, and
DS1488
CMOS- and TTL-Compatible Data Inputs
On-Chip Slew-Rate Limit . . . 30 V/ms
Output Current Limit . . . 10 mA Typ
Wide Supply Voltage Range . . . ±4.5 V
to ±15 V

description
The SN75C198 is a monolithic low-power BI-MOS device containing four low-power line drivers designed to
interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE) in conformance with the
specifications of ANSI EIA/TIA-232-E. The drivers of the SN75C198 are similar to those of the SN75C188
quadruple driver. The drivers have a controlled-output slew rate that is limited to a maximum of 30 V/ms. This
feature eliminates the need for external components.
The sleep-mode input, SM, can switch the outputs to high impedance, which avoids the transmission of
corrupted data during power-up and allows significant system power savings during data-off periods.
The SN75C198 is characterized for operation from 0°C to 70°C.