1�A, +3V To +5.5V, 250kbps, RS-232 Transceivers With Enhanced Automatic Powerdown

The Intersil ICL32XX 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. 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 enhanced Automatic powerdown functions, reduce the standby supply current to a 1A 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 ICL3244 is a 3 driver, 5 receiver device that provides a complete serial port suitable for laptop or notebook computers. The ICL3244 38 also include a noninverting always-active receiver for RING INDICATOR monitoring.
These devices feature an enhanced Automatic powerdown function which powers down the on-chip powersupply and driver circuits. This occurs when all receiver and transmitter inputs detect no signal transitions for a period of 30sec. These devices power back up, automatically, whenever they sense a transition on any transmitter or receiver input.
By Intersil Corporation
Part Manufacturer Description Datasheet Samples
ICL3226IAZ Renesas Electronics Corporation
  • Pb-free (RoHS compliant)
  • ±15kV ESD protected (human body model)
  • Manual and enhanced automatic powerdown features
  • Drop in replacements for MAX3224, MAX3226, MAX3238
  • Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
  • Latch-up free
  • RS-232 compatible with VCC = 2.7V
  • On-chip voltage converters require only four external 0.1μF capacitors
  • Flow-through pinout (ICL3238)
  • “Ready to transmit” indicator output (ICL3224/26)
  • Receiver hysteresis for improved noise immunity
  • Ensured minimum data rate: 250kbps
  • Ensured minimum slew rate: 6V/μs
  • Wide power supply range: Single +3V to +5.5V
  • Low supply current in powerdown state: 1μA
ICL3226EIAZ Renesas Electronics Corporation
  • Pb-Free Plus Anneal Available (RoHS Compliant)
  • ESD protection for RS-232 I/O pins to ±15kV (IEC61000)
  • Manual and enhanced automatic powerdown
  • Drop in replacements for MAX3224E, MAX3226E, MAX3244E
  • Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
  • RS-232 compatible with VCC = 2.7V
  • Latch-up free
  • On-chip voltage converters require only four external 0.1µF capacitors
  • Ensured mouse driveability (ICL3244E)
  • “Ready to Transmit” indicator output (ICL3224E/ICL3226E)
  • Receiver hysteresis for improved noise immunity
  • Ensured minimum data rate 250kbps
  • Ensured minimum slew rate 6V/µs
  • Wide power supply range single +3V to +5.5V
  • Low supply current in powerdown state 1µA
ICL3226EIAZ-T Renesas Electronics Corporation
  • Pb-Free Plus Anneal Available (RoHS Compliant)
  • ESD protection for RS-232 I/O pins to ±15kV (IEC61000)
  • Manual and enhanced automatic powerdown
  • Drop in replacements for MAX3224E, MAX3226E, MAX3244E
  • Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
  • RS-232 compatible with VCC = 2.7V
  • Latch-up free
  • On-chip voltage converters require only four external 0.1µF capacitors
  • Ensured mouse driveability (ICL3244E)
  • “Ready to Transmit” indicator output (ICL3224E/ICL3226E)
  • Receiver hysteresis for improved noise immunity
  • Ensured minimum data rate 250kbps
  • Ensured minimum slew rate 6V/µs
  • Wide power supply range single +3V to +5.5V
  • Low supply current in powerdown state 1µA
ICL3226IAZ-T Renesas Electronics Corporation
  • Pb-free (RoHS compliant)
  • ±15kV ESD protected (human body model)
  • Manual and enhanced automatic powerdown features
  • Drop in replacements for MAX3224, MAX3226, MAX3238
  • Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
  • Latch-up free
  • RS-232 compatible with VCC = 2.7V
  • On-chip voltage converters require only four external 0.1μF capacitors
  • Flow-through pinout (ICL3238)
  • “Ready to transmit” indicator output (ICL3224/26)
  • Receiver hysteresis for improved noise immunity
  • Ensured minimum data rate: 250kbps
  • Ensured minimum slew rate: 6V/μs
  • Wide power supply range: Single +3V to +5.5V
  • Low supply current in powerdown state: 1μA
ICL3226 's PackagesICL3226 's pdf datasheet
ICL3226CA SSOP
ICL3226CA-T SSOP
ICL3226CAZ SSOP
ICL3226CAZ-T SSOP
ICL3226IA SSOP
ICL3226IA-T SSOP
ICL3226IAZ SSOP
ICL3226IAZ-T SSOP




ICL3226 Pinout, Pinouts
ICL3226 pinout,Pin out
This is one package pinout of ICL3226,If you need more pinouts please download ICL3226's pdf datasheet.

ICL3226 Application circuits
ICL3226 circuits
This is one application circuit of ICL3226,If you need more circuits,please download ICL3226's pdf datasheet.


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ICL3226 Pb-Free ICL3226 Cross Reference ICL3226 Schematic ICL3226 Distributor
ICL3226 Application Notes ICL3226 RoHS ICL3226 Circuits ICL3226 footprint