Intersil ICL32X7E 3V to 5.5V powered RS-232 transmitters (five)/receivers (three) which meet ElA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. Additionally, they provide ±15kV ESD protection (IEC61000-4-2 Air Gap) and ±15kV Human Body Model protection on transmitter outputs and receiver inputs (RS-232 pins).
The ICL32X7E family (ICL3207E and ICL3217E) are low‑power RS‑232 transmitters and receivers that operate from a single 3 V to 5.5 V supply. They provide +15 kV ESD protection on RS‑232 pins, meet EIA/TIA‑232 and V.28/V.24 specifications, and guarantee a minimum data rate of 250 kbps.
Key functions include on‑chip charge pumps that generate the required ±5.5 V levels, an automatic power‑down mode (ICL3217E only) that reduces supply current to 1 µA, and compatibility with 3.3 V‑only, mixed 3.3 V/5 V, and 5 V systems. The devices are offered in SSOP and SOIC packages and are pin‑compatible replacements for older MAX207E/‘237E parts.
| Supply Voltage Range | 3 V to 5.5 V |
|---|---|
| Minimum Data Rate | 250 kbps |
| ESD Protection (RS‑232 pins) | +15 kV |
| Normal Supply Current (all outputs unloaded) | 0.3 mA |
| Maximum Junction Temperature | 150 °C |
| Package Types | SSOP, SOIC |
The device guarantees a minimum data rate of 250 kbps.
All RS‑232 pins are protected up to +15 kV according to IEC61000‑4‑2.
The devices operate from a single supply of 3 V to 5.5 V.