SN65C23243

ą SN65C23243, SN75C23243 3ĆV TO 5.5ĆV DUAL RSĆ232 PORT ą SLLS513A − AUGUST 2001 − REVISED MARCH 2004 D Single-Chip and Single-Supply Interface for Two IBM PC/AT Serial Ports DGG OR DL PACKAGE (TOP VIEW) D Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards D Operate With 3-V to 5.5-V VCC Supply D Always-Active Noninverting Receiver Output (ROUT2) Per Port RIN5A 1 RIN4A 2 RIN3A 3 RIN2A 4 RIN1A 5 48 ROUT5A 47 ROUT4A 46 ROUT3A 45 ROUT2A 44 ROUT1A D Operate Up To 250 kbit/s INVA 6 43 ROUT2A D Low Standby Current . . . 1 µA Typical D External Capacitors . . . 4 × 0.22 µF D Accept 5-V Logic Input With 3.3-V Supply D Allow for Flexible Power Down of Either DOUT3A 7 DOUT2A 8 DOUT1A 9 FORCEOFFA 10 C2− 11 42 DIN3A 41 DIN2A 40 DIN1A 39 FORCEON 38 V− Serial Port C2+ 12 37 V+ D Serial-Mouse Driveability GND 13 36 C1+ D RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM) D Applications − Battery-Powered Systems, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment VCC 14 FORCEOFFB 15 DOUT1B 16 DOUT2B 17 DOUT3B 18 INVB 19 RIN1B 20 35 C1− 34 GND 33 DIN1B 32 DIN2B 31 DIN3B 30 ROUT2B 29 ROUT1B description/ordering information RIN2B 21 RIN3B 22 28 ROUT2B 27 ROUT3B The SN65C23243 and SN75C23243 consist of RIN4B 23 26 ROUT4B two ports, each containing three line drivers and RIN5B 24 25 ROUT5B five line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, includin...