±15kV ESD Protected, +3V to +5.5V, 1Microamp, 1Mbps, RS-232 Transceivers with Enhanced Automatic Powerdown

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 enhanced automatic powerdown functions, reduce the standby supply current to a 1µA trickle.

Features

• Pb-Free Plus Anneal Available (RoHS Compliant) (see Ordering Info)

• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)

• Manual and Enhanced Automatic Powerdown Features

• Drop in Replacements for MAX3225E, MAX3227E, MAX3245E

• 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

• Guaranteed Mouse Driveability (ICL3245E)

• “Ready to Transmit”Indicator Output(ICL3225E/ICL3227E)

• Receiver Hysteresis For Improved Noise Immunity

• Guaranteed Minimum Data Rate . . . . . . . . . . . . . . 1Mbps

• Low Skew at Transmitter/Receiver Input Trip Points . . . 10ns

• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . 24V/µs

• Wide Power Supply Range . . . . . . .  Single +3V to +5.5V

• Low Supply Current in Powerdown State. . . . . . . . . . .1µA

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