Sipex's SP3243 3-Driver/5-Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers are intended for portable or handheld applications such as notebook and palmtop computers.
The SP3243 series are 3‑driver/5‑receiver RS‑232 transceivers designed for portable and hand‑held applications such as notebook and palmtop computers. They operate from a single +3.0 V to +5.5 V supply and include AUTO ON‑LINE circuitry that wakes the device when an RS‑232 cable is connected, otherwise shutting down to less than 1 pA.
The document lists electrical specifications, typical performance curves, pin‑out tables, and ordering part numbers for the various speed and package options. It also details ESD protection, supply current, output voltage swing, and timing characteristics for designers.
| Supply voltage range | +3.0 V to +5.5 V |
|---|---|
| Minimum data rate (EB) | 250 kbps |
| Minimum data rate (EU) | 1000 kbps |
| ESD rating (Human Body Model) | 15 kV |
| AUTO ON‑LINE supply current | 1.0–10 pA |
| Output voltage swing | ≈45 V |
The SP3243 operates from +3.0 V up to +5.5 V.
The SP3243EU can transmit at up to 1000 kbps when fully loaded.
AUTO ON‑LINE automatically wakes the transceiver when an RS‑232 cable is connected and a peripheral is turned on; otherwise it shuts down drawing less than 1 pA.
It is rated for 15 kV Human Body Model, 15 kV IEC 1000‑4‑2 air discharge, and 8 kV IEC 1000‑4‑2 contact discharge.