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ICL3226IAZ Datasheet(PDF) 1 Page - Intersil Corporation |
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ICL3226IAZ Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 18 page 1 ® ICL3224, ICL3226, ICL3238, ICL3244 1 Microamp, +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 1 µA 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 power- supply 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. Table 1 summarizes the features of the devices represented by this data sheet, while Application Note AN9863 summarizes the features of each device comprising the ICL32XX 3V family. Features • Pb-Free Plus Anneal Available (RoHS Compliant) • ±15kV ESD Protected (Human Body Model) • Manual and Enhanced Automatic Powerdown Features • Drop in Replacements for MAX3224, MAX3226, MAX3238, MAX3244 • 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 0.1 µF Capacitors • Flow-Through Pinout (ICL3238) • Guaranteed Mouse Driveability (ICL3244) • “Ready to Transmit” Indicator Output (ICL3224/26) • Receiver Hysteresis For Improved Noise Immunity • Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps • Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/ µs • Wide Power Supply Range . . . . . . . Single +3V to +5.5V • Low Supply Current in Powerdown State. . . . . . . . . . .1 µA 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 - Data Cradles Related Literature • Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)” • AN9863, “3V to +5.5V, 250k-1Mbps, RS-232 Transmitters/Receivers” TABLE 1. SUMMARY OF FEATURES PART NUMBER NO. OF Tx. NO. OF Rx. NO. OF MONITOR Rx. (ROUTB) DATA RATE (kbps) Rx. ENABLE FUNCTION? READY OUTPUT? MANUAL POWER- DOWN? ENHANCED AUTOMATIC POWERDOWN ICL3224 2 2 0 250 NO YES YES YES ICL3226 1 1 0 250 NO YES YES YES ICL3238 5 3 1 250 NO NO YES YES ICL3244 3 5 1 250 NO NO YES YES Data Sheet March 1, 2006 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2001, 2002, 2004-2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. FN4876.10 |
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