STMicroelectronics ST3232E
±15kV ESD protection 3 to 5.5V low power, up to 250kbps, RS-232 drivers and receivers
The ST3232E is a 3 V powered EIA/TIA-232 and V.28/V.24 communication interfaces with low power requirements, high data-rate capabilities and enhanced electrostatic discharge (ESD)protection to ± 8 kV using IEC1000-4-2 contact discharge and ±15 kV using the human body model. The ST3232E has a proprietary low-dropout transmitter output stage providing true RS-232 performance from 3 to 5 V supplies with a dual charge pump. The charge pump requires only four small 0.1 μF standard external capacitors for operations from 3 V supply. The ST3232E has two receivers and two drivers. The device is guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels.
Key features
- ESD protection for RS-232 I/O pins
- ±15 kV human body model
- ±8 kV IEC 1000-4-2 contact discharge
- 300 µA supply current
- 250 kbps minimum guaranteed data rate
- 6 V/µs minimum guaranteed slew rate
- Meet EIA/TIA-232 specifications down to 3 V
- Available in SO-16 and TSSOP16
Applications
- Notebook, subnotebook and palmtop computers
- Battery-powered equipment
- Hand-held equipment
- Peripherals and printers
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