STMicroelectronics ST3243B
The ST3243B/ST3243C devices consist of 3 drivers, 5 receivers and a dual charge pump circuit. The devices meet the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. The receiver R2 is always active to implement a wake-up feature for the serial port.| Part No. | ST3243B |
|---|---|
| Datasheet | ST3243B Download |
| Manufacturer |  STMicroelectronics |
| Description | 400kbps RS-232 transceiver |
| Buy | Stock & Price |
FEATURES
● ESD protection for RS-232 I/O pins – ±8 kV IEC61000-4-2 contact discharge – ±15 kV IEC61000-4-2 air discharge● 1 μA supply current achieved when in autopower-down
● 250 kbps minimum guaranteed data rate
● Guaranteed 6 V/μs slew rate range
● Guaranteed mouse drive ability
● 0.1 μF external capacitors
● Meet EIA/TIA-232 specifications down to 3 V
● Available in SSOP-28 package
DESCRIPTION
All transmitter outputs and receiver inputs are protected to ±8 kV using IEC61000-4-2 contact discharge and ±15 kV IEC61000-4-2 air discharge. The ST3243B/ST3243C devices have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The devices are guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. The auto-power-down feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled.
