SP3232EET-L/TR

The SP3222E/SP3232E series is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook or palmtop computers. The SP3222E/SP3232E series has a high-efficiency, charge-pump power supply that requires only 0.1μF capacitors in 3.3V operation. This charge pump allows the SP3222E/SP3232E series to deliver true RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3222E/SP3232E are 2-driver/2-receiver devices. The ESD tolerance of the SP3222E/SP3232E devices are over ±15kV for both Human Body Model and IEC61000-4-2 Air discharge test methods. The SP3222E device has a low-power shutdown mode where the devices' driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1μA. The SP3222E/SP3232E transceivers meet the EIA/TIA-232 and ITU-T V.28/V.24 communication protocols and can be implemented in battery-powered, portable, or hand-held applications such as notebook or palmtop computers. The SP3222E/SP3232E devices feature proprietary on-board charge pump circuitry that generates ±5.5V for RS-232 voltage levels from a single +3.0V to +5.5V power supply. This series is ideal for +3.3V-only systems, mixed +3.3V to +5.5V systems, or +5.0V-only systems that require true RS-232 performance. The SP3222E/SP3232E devices can operate at a typical data rate of 235kbps when fully loaded. The SP3222E and SP3232E are 2-driver/2-receiver devices ideal for portable or handheld applications. The SP3222E features a 1μA shutdown mode that reduces power consumption and extends battery life in portable systems. Its receivers remain active in shutdown mode, allowing external devices such as modems to be monitored using only 1μA supply current.

Applications

• notebook or palmtop computers

Key features

• Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
• Minimum 120kbps Data Rate Under Full Load
• 1μA Low Power Shutdown with Receivers active (SP3222E)
• Interoperable with RS-232 down to a +2.7V power source
• Enhanced ESD Specifications: ±15kV Human Body Model ±15kV IEC61000-4-2 Air Discharge ±8kV IEC61000-4-2 Contact Discharge