BUY MAX253CSA+ https://www.utsource.net/itm/p/11743214.html

Manufacturer: Maxim Integrated Description: Dual, Low-Power, +5V, RS-232 Drivers/Receivers Features: +5V Single Supply Operation Low Power Consumption: 3.5mA (Max) ±15kV ESD Protection on All Pins 0.1μF External Capacitors Low Output Skew: 0.2μs (Max) Low Output-Voltage Swing: 0.2V (Max) Low Input-Voltage Swing: 0.2V (Max) Low Propagation Delay: 8μs (Max) Low Quiescent Current: 3.5mA (Max) Operates Up to 250kbps Available in 8-Pin SO Package Application: The MAX253CSA+ is a dual, low-power, +5V, RS-232 drivers/receivers designed for use in a variety of data communication applications. It is ideal for use in portable and battery-powered systems, as well as in systems that require a high level of ESD protection. The device is available in an 8-pin SO package and operates up to 250kbps. (For reference only)