The MAX3238E/MAX3248E are 3V-powered EIA/TIA-232 and V.28/V.24 communication interfaces intended for cell phones, data cables, and modem applications.
The MAX3238E and MAX3248E are 3 V‑powered RS‑232 transceivers featuring Maxim’s AutoShutdown Plus technology, which reduces supply current to 10 nA when no valid signal transitions are detected. They provide five drivers and three receivers, a guaranteed 250 kbps data rate, and enhanced ESD protection of up to +15 kV on all I/O pins.
These devices are intended for cellular data cables, peripherals, modems, and other battery‑powered equipment. They are supplied in a 28‑pin SSOP package with a dual charge‑pump voltage converter that generates ±5.5 V outputs from a +3.0 V to +5.5 V supply.
| Supply Voltage Range | +3.0 V to +5.5 V |
|---|---|
| Maximum Data Rate | 250 kbps |
| ESD Protection (Human Body Model) | +15 kV |
| Supply Current (AutoShutdown Plus) | 10 nA |
| Drivers / Receivers | 5 drivers, 3 receivers |
| Package | 28‑pin SSOP |
The device draws only 10 nA in AutoShutdown Plus mode.
Both parts guarantee a data rate of up to 250 kbps.
The MAX3238E contains five drivers and three receivers.
The transceiver offers up to +15 kV ESD protection under the Human Body Model and +8 kV under IEC contact discharge.