ICL3241E: ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers

The Intersil ICL32xxE devices are 3.0V to 5.5V powered RS-232 transmitters/receivers which meet ElA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. Additionally, they provide ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Targeted applications are PDAs, Palmtops, and notebook and laptop computers where the low operational, and even lower standby, power consumption is critical. Efficient on-chip charge pumps, coupled with manual and automatic power-down functions (except for the ICL3232E), reduce the standby supply current to a 1µA trickle. Small footprint packaging, and the use of small, low value capacitors ensure board space savings as well. Data rates greater than 250kbps are guaranteed at worst case load conditions. This family is fully compatible with 3.3V-only systems, mixed 3.3V and 5.0V systems, and 5.0V-only systems.

The ICL324XE are 3-driver, 5-receiver devices that provide a complete serial port suitable for laptop or notebook computers. Both devices also include noninverting always-active receivers for "wake-up" capability.

The ICL3221E, ICL3223E and ICL3243E, feature an automatic power-down function which powers down the on-chip power-supply and driver circuits. This occurs when an attached peripheral device is shut off or the RS-232 cable is removed, conserving system power automatically without changes to the hardware or operating system. These devices power up again when a valid RS-232 voltage is applied to any receiver input.

Key Features
  • ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
  • Drop in Replacements for MAX3221E, MAX3222E, MAX3223E, MAX3232E, MAX3241E, MAX3243E, SP3243E
  • ICL3221E is a Low Power, Pin Compatible Upgrade for 5V MAX221E
  • ICL3222E is a Low Power, Pin Compatible Upgrade for 5V MAX242E, and SP312E
  • ICL3232E is a Low Power Upgrade for HIN232E, ICL232 and Pin Compatible Competitor Devices
  • RS-232 Compatible with VCC = 2.7V
  • Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
  • 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: 250kbps
  • Wide Power Supply Range: Single +3V to +5.5V
  • Low Supply Current in Power-Down State: 1µA
  • Pb-Free Available (RoHS Compliant)
Applications
  • 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
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN9863: 3V to +5.5V, 250k-1Mbps, RS-232 Transmitters/ReceiversPDF13 Nov 201495 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E DatasheetPDF09 Dec 2015745 KB
Tech Briefs
TitleTypeUpdatedSizeOther Languages
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)PDF13 Jan 201529 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
ICL3241ECA28 Ld SSOP0.22281240
ICL3241ECA-T28 Ld SSOP T+R0.22281240
ICL3241ECAZ28 Ld SSOP0.22282260RoHS
ICL3241ECAZ-T28 Ld SSOP T+R0.22282260RoHS
ICL3241ECB28 Ld SOIC0.75281240
ICL3241ECB-T28 Ld SOIC T+R0.75281240
ICL3241ECBZ28 Ld SOIC0.75283260RoHS
ICL3241ECBZ-T28 Ld SOIC T+R0.75283260RoHS
ICL3241ECV28 Ld TSSOP0.107281240
ICL3241ECV-T28 Ld TSSOP T+R0.107281240
ICL3241ECVZ28 Ld TSSOP0.107283260RoHS
ICL3241ECVZ-T28 Ld TSSOP T+R0.107283260RoHS
ICL3241EIA28 Ld SSOP0.22281240
ICL3241EIA-T28 Ld SSOP T+R0.22281240
ICL3241EIAZ28 Ld SSOP0.22282260RoHS
ICL3241EIAZ-T28 Ld SSOP T+R0.22282260RoHS
ICL3241EIB28 Ld SOIC0.75281240
ICL3241EIB-T28 Ld SOIC T+R0.75281240
ICL3241EIBZ28 Ld SOIC0.75283260RoHS
ICL3241EIBZ-T28 Ld SOIC T+R0.75283260RoHS
ICL3241EIV28 Ld TSSOP0.107281240
ICL3241EIV-T28 Ld TSSOP T+R0.107281240
ICL3241EIVZ28 Ld TSSOP0.107283260RoHS
ICL3241EIVZ-T28 Ld TSSOP T+R0.107283260RoHS
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E Datasheet 09 Dec 2015
28 Ld SSOP T+R HIN213E
28 Ld SOIC HI-547
28 Ld TSSOP T+R ISL6443A
ICL3241E IBIS Model 06 Nov 2014
ICL3232E
AN9863: 3V to +5.5V, 250k-1Mbps, RS-232 Transmitters/Receivers 13 Nov 2014
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) 13 Jan 2015