DATASHEET
ISL3241E, ISL3243E FN6768
Rev 2.00
June 18, 2012 QFN Packaged, В±15kV ESD Protected, +2.7V to +3.6V, 250kbps, RS-232
Transmitters/Receivers with Separate Logic Supply Pin Features The Intersil ISL324xE devices are 2.7V to 3.6V powered
RS-232 transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at VCC = 3.0V. Additionally, they
provide В±15kV ESD protection (IEC61000-4-2 Air Gap and
Human Body Model) on transmitter outputs and receiver
inputs (RS-232 pins). Targeted applications are POS systems,
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, reduce the standby
supply current to a 0.5ВµA trickle. Tiny 5mmx5mm Quad Flat
No-Lead (QFN) 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. VL Pin for Compatibility in Mixed Voltage Systems Adjusts
Logic Output Levels and Input Thresholds for Compatibility
with Lower Supply Voltage Logic Parameters Specified for 10% Tolerance Supplies and Full
Industrial Temp Range Pb-free Small QFN (5mmx5mm) Package is 60% Smaller
than a 28 Lead TSSOP ESD Protection for RS-232 I/O Pins to В±15kV (IEC61000) Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V RS-232 Compatible with VCC = 2.7V On-Chip Voltage Converters Require Only Four External …