ZT3221E

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.

Features

● 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

Target Applications

Battery-Powered And Hand-Held Applications
Notebooks, Subnotebooks, and Palmtops
Industrial and Embedded PCs
Data Cables for Cell Phones and PDAs
Terminal Adapters and POS terminals
Peripherals interface
Routers and HUBs