The MAX3311E/MAX3313E are low-power, 5V EIA/TIA-232-compatible transceivers. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, making these devices ideal for applications where more robust transceivers are required. Both devices have one transmitter and one receiver. The transmitters have a proprietary low-dropout trans- mitter output stage enabling RS-232-compatible opera- tion from a +5V supply with a single inverting charge pump. These transceivers require only three 0.1µF capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels. The MAX3311E features a 1µA shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled. The MAX3313E features an INVALID output that asserts high when an active RS-232 cable signal is connected, signaling to the host that a peripheral is connected to the communication port.
The MAX3311E and MAX3313E are low‑power, 5 V transceivers that convert CMOS logic levels to RS‑232‑compatible signals. They feature ±15 kV ESD protection, a single inverting charge‑pump supply, and require only three 0.1 µF capacitors. The MAX3311E includes a 1 µA shutdown mode, while the MAX3313E provides an INVALID output to indicate a connected peripheral.
Both devices operate up to 460 kbps data rates, support a supply voltage range of 4.5 V–5.5 V, and are offered in a 10‑pin µMAX package. Detailed electrical, timing, and thermal specifications are provided, along with recommended capacitor selections and ESD test procedures.
| Supply Voltage Range (VCC) | 4.5 V – 5.5 V |
|---|---|
| ESD Protection (Human Body Model) | ±15 kV |
| Pin Count | 10 pins |
All pins are protected to ±15 kV using the Human Body Model.