TRS3243E

TRS3243E SLLS789E – APRIL 2007 – REVISED DECEMBER 2022 TRS3243E 3-V to 5.5-V Multichannel RS-232 Line Driver or Receiver With ±15-kV IEC ESD Protection 1 Features Single-chip and single-supply interface for IBM™ PC/AT™ serial port ESD Protection for RS-232 bus pins – ±15-kV Human-body model (HBM) – ±8-kV IEC61000-4-2, Contact discharge – ±15-kV IEC61000-4-2, Air-gap discharge Meets or exceeds requirements of TIA/EIA-232-F and ITU v.28 standards Operates with 3-V to 5.5-V VCC supply Always-active noninverting receiver output (ROUT2B) Designed to transmit at a data rate up to 500 kbit/s Low standby current: 1 μA typical External capacitors: 4 × 0.1 μF Accepts 5-V logic input with 3.3-V supply Designed to be interchangeable with industry standard '3243E devices Serial-mouse driveability Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed Package options include plastic small-outline (DW), shrink small-outline (DB), and thin shrink small-outline (PW) 2 Applications Battery-powered systems Personel electronics Notebooks Laptops Palmtop PCs Hand-held equipment 3 Description The TRS3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge) protection on serial-port connection pins. The device meets the requirements of TIA/ EIA-232-F and provides the electrical interf...