Intersil ICL32XX 1 Microamp, +3V to +5.5V, 1Mbps, RS-232 Transceivers with Enhanced Automatic Powerdown
The ICL3225 and ICL3245 are RS‑232 interface ICs that operate from a single 3.0 V to 5.5 V supply. They provide low standby current, automatic and manual power‑down features, and meet EIA/TIA‑232 specifications. The devices require only four external 0.1 µF capacitors for the on‑chip charge‑pump circuitry.
The family includes multiple package options (SSOP, TSSOP, PDIP) and offers features such as +15 kV ESD protection, latch‑up free operation, and a “ready to transmit” indicator. Detailed electrical specifications, pin descriptions, and power‑down logic tables are provided for designers.
| Supply Voltage Range | 3.0 V to 5.5 V |
|---|---|
| Minimum Data Rate | 1 Mbps |
| Powerdown Supply Current | 1 µA |
| ESD Protection | +15 kV (Human Body Model) |
| External Capacitors Required | Four 0.1 µF capacitors |
Both devices operate from 3.0 V up to 5.5 V.
They guarantee a minimum data rate of 1 Mbps.
Only four small external 0.1 µF capacitors are required.