The TRSF3243 consists of three line
drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD
protection pin to pin (serial-port connection pins, including GND). This device
provides the electrical interface between an asynchronous communication controller
and the serial-port connector. The charge pump and four small external capacitors
allow operation from a single 3-V to 5.5-V supply. In addition, this device includes
an always-active noninverting output (ROUT2B), which allows applications using the
ring indicator to transmit data while the device is powered down. The device
operates at data signaling rates up to 1 Mbit/s and an increased slew-rate range of
24 V/µs to 150 V/µs.
The TRSF3243 consists of three line
drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD
protection pin to pin (serial-port connection pins, including GND). This device
provides the electrical interface between an asynchronous communication controller
and the serial-port connector. The charge pump and four small external capacitors
allow operation from a single 3-V to 5.5-V supply. In addition, this device includes
an always-active noninverting output (ROUT2B), which allows applications using the
ring indicator to transmit data while the device is powered down. The device
operates at data signaling rates up to 1 Mbit/s and an increased slew-rate range of
24 V/µs to 150 V/µs.