The ST3243B/ST3243C devices consist of 3 drivers, 5 receivers and a dual charge pump circuit. The devices meet the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±8 kV using IEC61000-4-2 contact discharge and ±15 kV IEC61000-4-2 air discharge. The receiver R2 is always active to implement a wake-up feature for the serial port. The ST3243B/ST3243C devices have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The devices are guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. The auto-power-down feature functions when FORCEON is low and FORCEOFFis high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFFis set low, both drivers and receivers (expert R2B) are shut off, and supply current is reduced to 1 μA. Disconnecting the serial port or turning off the peripheral drives causes the auto-power-down condition to occur. Auto-power-down can be disabled when FORCEON and FORCEOFFare high, and should be done when driving a serial mouse. With auto-power-down enabled, the device is activated automatically when a valid signal is applied to any receiver input. Typical application are in notebook, subnotebook, palmtop computers, battery-powered equipment, hand-held equipment, peripherals, and printers. https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2020-06-13 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2021-04-05 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2021-04-17 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2021-07-14 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2021-11-06 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2021-12-06 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2022-04-08 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2022-06-10 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2022-06-22 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2022-07-05 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2024-01-05 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2024-07-27 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2024-08-04 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2024-11-17 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-01-20 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-06-13 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-07-10 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-08-26 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-09-04 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-09-13 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2025-09-29 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-01-18 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-02-15 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-04-23 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-05-02 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-05-21 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-05-30 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-06-18 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-06-28 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-07-07 https://elecena.pl/product/16968977/st3243cpr-15kv-esd-protected-3-to-5-5v-400kbps-rs-232-transceiver-with-auto-power-down 2026-07-27