The MAX3223EEAP from Maxim Integrated is a high-performance, 3.0V to 5.5V, 2-driver/2-receiver, RS-232 interface circuit designed to meet the stringent requirements of EIA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. This makes it an ideal choice for applications that require reliable data transfer over a serial communication interface, such as industrial control systems, point-of-sale equipment, and data terminals.
This device is equipped with a proprietary low-dropout transmitter output stage, enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF external capacitors for operation from a 3.3V supply. The MAX3223EEAP operates at a data rate of 250kbps while maintaining RS-232 output levels.
One of the key features of the MAX3223EEAP is its AutoShutdown Plus™ feature, which reduces power consumption when the device is not in use. This feature automatically enters a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are off, significantly saving power for battery-powered applications. The device also exits shutdown mode when it senses a valid transition on any receiver input.
The MAX3223EEAP is available in a 20-pin SSOP package, making it compact and suitable for space-constrained applications. Its receivers have a 1µA shutdown mode, and the transmitters can remain active in shutdown mode, allowing for a wake-up feature that is essential for remote applications.
Additional features of the MAX3223EEAP include receiver hysteresis for improved noise immunity, a guaranteed mouse driveability, and a guaranteed data rate of 120kbps at worst-case load conditions. It also includes a 2-driver/2-receiver operation that allows for full-duplex communication, making it a versatile solution for various communication tasks.
Overall, the MAX3223EEAP by Maxim Integrated is a robust, low-power, and efficient RS-232 interface solution that provides reliable data transfer while minimizing power consumption, making it an excellent choice for portable and power-sensitive applications.
