SN75C3221E
Features
- ESD Protection for RS-232 pins
- ±15-k V Human-body model (HBM)
- ±8-k V IEC 61000-4-2 Contact discharge
- ±15-k V IEC 61000-4-2 Air-gap discharge
- Operate with 3-V to 5.5-V VCC supply
- Operate up to 1 Mbit/s
- Low Standby Current . . . 1 μA Typical
- External capacitors . . . 4 × 0.1 μF
- Accepts 5-V logic input with 3.3-V supply
- RS-232 Bus-pin esd protection exceeds ±15 kv using human-body model (HBM)
- Auto-powerdown feature automatically disables drivers for power savings
2 Applications
- Industrial PCs
- Wired networking
- Data center and enterprise puting
- Battery-powered systems
- PDAs
- Notebooks
- Laptops
- Palmtop PCs
- Hand-held equipment
3 Description
The SN65C3221E and SN75C3221E consist of one line driver, one line receiver, and a dual charge-pump circuit with ±15-k V IEC ESD protection pin to pin (serial-port connection pins, including GND). These devices provide the electrical interface between an asynchronous munication controller and the serial-port...
