ST3237 Datasheet | STMicroelectronics

DESCRIPTION The ST3237 is a 3V to 5.5V powered EIA/TIA-232 and V.28/V.24 munication interfaces high data-rate capabilities. ST3237 is a transceiver (5 drivers, 3 receivers) for fast modem applications. The device has a proprietary low-dropout transmitter output stage providing true RS-232 performance from a 3V to 5.5V supply using a dual charge pump. The device is guaranteed to run at data rates of 250Kbps in the normal ORDERING CODES Type ST3237CD ST3237BD ST3237CDR ST3237BDR ST3237CPR ST3237BPR ST3237CTR (- ) ST3237BTR (- ) (- ) Available on request TSSOP operation mode and 1Mbps in the very high speed operation mode while maintaning RS-232 output levels. Temperature Range 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C Package SO-28 (Tube) SO-28 (Tube) SO-28 (Tape & Reel) SO-28 (Tape & Reel) SSOP-28 (Tape & Reel) SSOP-28 (Tape & Reel) TSSOP28 (Tape & Reel) TSSOP28 (Tape & Reel) ments 27parts per tube / 12tube per box 27parts per tube / 12tube per box 1000 parts per reel 1000 parts per reel 1350 parts per reel 1350 parts per reel 2500 parts per reel 2500 parts per reel May 2002 1/12 PIN DESCRIPTION Pl N N° 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 SYMBOL C2+ GND C2VT1OUT T2OUT T3OUT R1IN R2IN T4OUT R3IN T5OUT EN SHDN VHSCI R1OUTB T5IN R3OUT T4IN R2OUT R1OUT T3IN T2IN T1N C1 VCC V+ C1+ NAME AND FUNCTION Positive Terminal of Inverting Charge Pump Capacitor Ground Negative Terminal of Inverting Charge Pump Capacitor 5.5V Generated by the Charge Pump First Transmitter Output Voltage Second Transmitter Output Voltage Third Transmitter Output Voltage First Receiver Input Voltage Second Receiver Input Voltage Fourth Transmitter Output Voltage Third Receiver Input Voltage Fifth Transmitter Output Voltage Receiver Enable, Active Low Shutdown Control, Active Low Very High Speed Control Input. Connect to GND for normal operation; connect to VCC for 1Mbps transmission rates. Non...