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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 9,000

On Order: 0
Factory Stock:Factory Stock: 0
Factory Lead Time: 9 Weeks
Minimum Order: 1
Multiple Of: 1
Quantity Web Price
1 $1.71
50 $1.30
100 $1.24
250 $1.16
500+ $1.11


Attributes Table
Data Rate 250kbps
ESD Voltage-Max ±15kV
Operating Temp Range 0°C to 70°C
Supply Voltage 3V to 5.5V
Features and Applications

The ICL3221ECVZ is a single RS-232 transmitter and receiver interface circuit with manual and automatic power down function.

This device provide ±15 kV ESD protection on transmitter outputs and receiver inputs (RS-232 pins) and also feature an automatic power-down function which powers down the on-chip power-supply and driver circuits.


  • ESD Protection for RS-232 I/O Pins to ±15 kV (IEC61000)
  • Drop in Replacements for MAX3221E, MAX3222E, MAX3223E, MAX3232E, MAX3241E, MAX3243E, SP3243E
  • RS-232 Compatible with VCC = 2.7 V
  • Meets EIA/TIA-232 and V.28/V.24 Specifications at 3 V
  • Latch-Up Free
  • On-Chip Voltage Converters Require Only Four External 0.1μF Capacitors
  • Manual and Automatic Power-Down Features
  • Guaranteed Mouse Driveability (ICL324xE Only)
  • Receiver Hysteresis For Improved Noise Immunity
  • Guaranteed Minimum Data Rate : 250 kbps
  • Wide Power Supply Range : Single +3 V to +5.5 V
  • Low Supply Current in Power-Down State : 1 μA
  • Pb-Free Available (RoHS Compliant)


  • Any System Requiring RS-232 Communication Ports
    • Battery Powered, Hand-Held, and Portable Equipment
    • Laptop Computers, Notebooks, Palmtops
    • Modems, Printers and other Peripherals
    • Digital Cameras
    • Cellular/Mobile Phones