STMICROELECTRONICS ST3243EBTR RS232 TRANSCEIVER, 400KBPS, -40TO85DEG C

ST3243EBTR is a ±15KV ESD protected 3 to 5.5V, 400Kbps, RS-232 transceiver with auto power-down. This device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. This device meets the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver input are protected to ±8kV USING IEC 1000-4-2 contact discharge and ±15KV using the human body model. The receiver R2 is always active to implement a wake-up feature for serial port. It has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3V to 5.5V supply with a dual charge pump. This device is guaranteed to run at data rates of 250Kbps while maintaining RS-232 output levels.

• Guaranteed mouse drive ability, 0.1µF external capacitors
• Meet EIA/TIA-232 specifications down to 3V, supply current is 1mA maximum
• Shutdown supply current is 1µA typ at (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C)
• Transmitter input hysteresis is 0.5V typ at (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C)
• Input leakage current is ±1µA maximum at (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C)
• Output short circuit current is ±40mA typical at (VCC = 3.3V)
• Maximum data rate is 400Kbps typical at (RL = 3Kohm, CL= 1000pF one transmitter switching)
• Transition slew rate is 30V/µs maximum at (CL = 150pF to 1000pF)
• Transmitter skew is 150ns typical at (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C)
• Operating temperature range from -40°C to 85°C, TSSOP28 package

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.