SN65C3222

ą SN65C3222, SN75C3222 3ĆV TO 5.5ĆV MULTICHANNEL RSĆ232 COMPATIBLE LINE DRIVER/RECEIVER ą SLLS534B − MAY 2002 − REVISED OCTOBER 2004 D Operates With 3-V to 5.5-V VCC Supply D Operates Up To 1 Mbit/s D Low Standby Current . . . 1 µA Typ D External Capacitors . . . 4 × 0.1 µF D Accepts 5-V Logic Input With 3.3-V Supply D RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM) D Applications − Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment DB, DW, OR PW PACKAGE (TOP VIEW) EN 1 C1+ 2 V+ 3 C1− 4 C2+ 5 C2− 6 V− 7 DOUT2 8 RIN2 9 ROUT2 10 20 PWRDOWN 19 VCC 18 GND 17 DOUT1 16 RIN1 15 ROUT1 14 NC 13 DIN1 12 DIN2 11 NC description/ordering information NC − No internal connection The SN65C3222 and SN75C3222 consist of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The devices 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 data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/µs to 150 V/µs. The SN65C3222 and SN75C3222 can be placed in the power-down mode by setting PWRDOWN low, which draws only 1 µA from the power supply. When the devices are powered down, the receivers remain active while the drivers are pl...