EN
C1+
V+
C1-C2+
C2-V-DOUT2
RIN2
ROUT2 Battery-Powered Systems
PDAs
Notebooks
Laptops
Palmtop PCs
Hand-Held Equipment DESCRIPTION/
ORDERING INFORMATION
The SN65C3222E and SN75C3222E consist of two
line drivers, two line receivers, and a dual
charge-pump circuit with В±15-kV ESD protection pin
to pin (serial-port connection pins, including GND).
The devices meet the requirements of TIA/EIA-232-F
and provide the electrical interface between an
asynchronous communication controller and the
serial-port connector. The charge pump and four
small external capacitors allow operation from a
single 3-V to 5.5-V supply. The devices operate at …
