Key facts
- Brand
- Intersil
- Model
- ISL4223E
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-02
Start here

Intersil ISL4221E/ISL4223E RS-232 Transceivers Datasheet
The document describes the Intersil ISL422XE family of devices, specifically the ISL4221E (one driver, one receiver) and ISL4223E (two drivers, two receivers). These transceivers operate from a single +2.7V to +5.5V supply and meet EIA/TIA-232 and V.28/V.24 specifications even at 3.0V operation.
Key features include +15kV ESD protection on RS-232 pins, manual and automatic powerdown functions to reduce standby current to 150nA, and a guaranteed minimum data rate of 250kBps. The devices are housed in a tiny 5mm x 5mm Quad Flat No-Lead (QFN) package.
Intersil ISL4223E specifications
| Supply Voltage Range | +2.7V to +5.5V |
|---|---|
| ESD Protection (Human Body Model) | +15kV |
| Minimum Data Rate | 250kBps |
| Standby Supply Current (Powerdown) | 150nA |
| Package Size | 5mm x 5mm QFN |
Source: Intersil ISL4221E/ISL4223E RS-232 Transceivers Datasheet
All Intersil ISL4223E documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the difference between ISL4221E and ISL4223E?
The ISL4221E has one transmitter and one receiver, while the ISL4223E has two transmitters and two receivers.
From: Intersil ISL4221E/ISL4223E RS-232 Transceivers Datasheet
What is the standby current in automatic powerdown mode?
The standby supply current reduces to a trickle of 150nA when the device enters automatic powerdown.
From: Intersil ISL4221E/ISL4223E RS-232 Transceivers Datasheet
What supply voltage range do the devices support?
They operate from 2.7 V to 5.5 V.
What is the guaranteed minimum data rate?
The devices guarantee a minimum data rate of 250 kbps.
