TRSF3222E Datasheet | Texas Instruments

SLLS823A - JULY 2007 - REVISED AUGUST 2021 3-V to 5.5-V Multichannel RS-232 Line Driver and Receiver with ±15-k V ESD Protection 1 Features - ESD Protection for RS-232 bus pins - ±15-k V Human-body model (HBM) - ±8-k V IEC 61000-4-2, Contact discharge - ±15-k V IEC 61000-4-2, Air-gap discharge - Meets or exceeds the requirements of TIA/ EIA-232-F and ITU v.28 standards - Operates with 3-V to 5.5-V VCC supply - Operates up to 1000 kbit/s - Two drivers and two receivers - Low standby current . . . 1 μA Typ - External capacitors . . . 4 × 0.1 μF - Accepts 5-V logic input with 3.3-V supply 2 Applications - Industrial PCs - Wired networking - Data center and networking equipment - Notebooks - Hand-held equipment 3 Description The TRSF3222E consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-k V ESD protection pin to pin (serial-port connection pins, including GND). The TRSF3222E meets the requirements of TIA/ EIA-232-F and provides the electrical interface between an asynchronous munication 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 TRSF3222E operates at typical data signaling rates up to 1000 kbit/s and is an improved drop-in replacement for industry-popular '3222 two-driver, two-receiver functions. The TRSF3222E can be placed in the power-down mode by setting the power-down ( PWRDOWN) input low, which draws only 1 μA from the power supply. When the device is powered down, the receivers remain active while the drivers are placed in the high-impedance state. Also, during power down, the onboard charge pump is disabled; V+ is lowered to VCC, and V- is raised toward GND. Receiver outputs also can be placed in the high-impedance state by setting enable ( EN) high. PART NUMBER TRSF3222E Device Information PACKAGE(1) BODY SIZE...