Интерфейс RS-232 MAX3223EUP+T

Приемопередатчик , RS232, 1 драйвер, автоотключение, 3.3В или 5.5В питание, TSSOP-16

The MAX3223EUP+T from Maxim Integrated Products is a 3V to 5.5V, RS232 transceiver with AutoShutdown™ in 20 pin TSSOP package. It achieves 1µA supply current with Maxim's revolutionary AutoShutdown™ feature. Whenever the device does not sense a valid signal level on the receiver inputs, the onboard power supply and driver turns to shut down. This occurs if the RS232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The system turns on again when a valid level is applied to any RS232 receiver input. The high efficiency, dual charge pump power supply and a low dropout transmitter combine to deliver true RS232 performance from a single +3V to +5.5V supply. A high efficiency, dual charge pump power supply and a low dropout transmitter combine to deliver true RS232 performance from a single +3V to +5.5V supply. It is used in battery powered equipment, hand held equipment, peripherals and portable diagnostics equipment.

• Two drivers and two receivers, operating temperature range from -40°C to 85°C
• Requires only 0.1µF capacitors in 3.3V operation
• AutoShutdown™ feature enabled after no activity on receiver input for 30µs
• 1µA supply current in shutdown mode saves power
• Software control option for shutdown, 2 receivers active in shutdown mode
• Integrated charge pump circuitry eliminates need of ±12 supply and operates in single 3.3V
• 5V supply
• Data rate of 120Kbps, EIA
• TIA-232, 0.1µF capacitors
• Receiver propagation delay is 0.3µs (tPLH), 0.3µs (tPHL)

• Transmitter skew of 200ns, receiver skew of 100ns
• Transition region slew rate of 8.0V
• µs at CL = 200pF to 2500pF
• Battery-Powered Equipment; Hand-Held Equipment; Peripherals; Portable Diagnostics Equipment

Области применения

Связь и Сеть, Промышленное, Переносные Устройства