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Description

The ZT32xxE series devices are 3V powered EIA/TIA-232 and V.28/V.24 communication interfaces with low power requirements. They consist of two line drivers, two line receivers and the proprietary switch-capacitor regulated voltage converters. The ZT3220E has a 1Tx and 1Rx configuration. These devices operate from a single 3V to 5.5V power supply at the guaranteed data rate of 250k bits/sec with enhanced electrostatic discharge (ESD) protection in all RS232 I/O pins exceeding ±15kV EN61000-4-2 Air Gap Discharge and ±8kV EN61000-4-2 Contact Discharge. The ZT3221E and ZT3223E features the AUTOGREEN (patent pending) proprietary function which automatically powers down the on-chip regulated voltage converters and driver circuits when an RS-232 cable is disconnected from the host interface or when a connected peripheral device is turned off. Meets EIA/TIA-232F and CCITT V.28/V.24 specifications for Vcc at +3.3V ±10% and +5V ±10% Low Quiescent Current: 0.5mA typ., 1mA max Low Shutdown Current (where applicable): 1µA typical, 10µA max Guaranteed Data Rate 250Kbps Proprietary Switch-Capacitor Regulated Voltage Converters (patent pending) Proprietary AUTOGREEN Power Saving (patent pending) Latch-up Free ESD Protection for RS-232 I/O’s ±15kV Human Body Model (HBM) ±15kV EN61000-4-2 Air Gap Discharge ±8kV EN61000-4-2 Contact Discharge Drop-in Replacements for MAX3220E, SP3220E, MAX3221E, ICL3221E, MAX3222E, ICL3222E, SP3222E, MAX3223E, ICL3223E, SP3223E, MAX3232E, ICL3232E, SP3232E, LT1385, SP385E, IS3232E High Data Rate at 1000Kbps Available on ZT32xxF Series

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