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 greater than 250kbps are guaranteed at worst case load conditions. This family is fully compatible with 3.3Vonly systems, mixed 3.3V and 5.0V systems, and 5.0V-only systems.

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 State1µA

• 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

ICL3221ECV属于集成电路（IC） > 驱动器，接收器，收发器。瑞萨科技有限公司制造生产的ICL3221ECV驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。