The SP3223U/3243U is a high speed intelligent RS-232 transceiver solution that supports up to 1000kbps data rate, and is intended for portable or hand-held applications such as notebook and palmtop computers.
The SP3223U and SP3243U are high-speed intelligent RS-232 transceivers designed for portable and handheld applications such as notebook and palmtop computers. The SP3223U is a 2-driver/2-receiver device, while the SP3243U is a 3-driver/5-receiver device. Both devices utilize an internal high-efficiency charge-pump power supply that requires only 0.1 uF capacitors in 3.3 V operation.
| Data Rate | 1000 Kbps minimum |
|---|---|
| Supply Voltage Range | +3.0V to +5.5V |
| Capacitor Requirement | 0.1 uF |
| SP3223U Drivers/Receivers | 2 Drivers / 2 Receivers |
| SP3243U Drivers/Receivers | 3 Drivers / 5 Receivers |
| Supply Current (Shutdown) | 10 pA |
| Maximum Data Rate | 1000 Kbps |
The devices operate from a single power supply ranging from +3.0V to +5.5V.
Yes, the AUTO ON-LINE feature allows the device to automatically wake up when an RS-232 cable is connected and a peripheral is turned on.
The devices use an internal charge-pump power supply that requires only 0.1 uF capacitors in 3.3 V operation.