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[China]
Address: 1702, Dingcheng international building, Zhonghang Road, Futian District, Shenzhen
Contact name:DANDAN
Shenzhen Sai Collie Technology Co., Ltd. |
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TRSF3221EIPWR Integrated
Circuit IC Chip Interface IC 3V 1Mbit Line Driver Receiver Package TSSOP-16
| SMD/SMT | |
| TSSOP-16 | |
| TRSF3221E | |
| Transceiver | |
| 1 Mb/s | |
| 1 Driver | |
| 1 Receiver | |
| Full Duplex | |
| 5.5 V | |
| 3 V | |
| 1 mA | |
| - 40 C | |
| + 85 C | |
| 15 kV | |
| Reel | |
| Cut Tape | |
| MouseReel | |
| Brand: | Texas Instruments |
| Operating Supply Voltage: | 3.3 V, 5 V |
| Output Current: | 35 mA |
| Product: | RS-232 Transceivers |
| Product Type: | RS-232 Interface IC |
| Propagation Delay Time: | 150 ns |
Description
The TRSF3221E consists of one line driver, one line receiver, and a
dual charge-pump circuit with ±15-kV IEC ESD protection pin to pin
(serial-port connection pins, including GND). The TRSF3221E
provides 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 TRSF3221E operates at data
signaling rates up to 1 Mbit/s and a driver output slew rate of 24
V/µs to 150 V/µs.
Flexible control options for power management are available when
the serial port is inactive. The auto-powerdown feature functions
when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the TRSF3221E does not sense a valid RS-232 signal on
the receiver input, the driver output is disabled. If FORCEOFF is
set low and the enable (EN) input is high, both the driver and
receiver are shut off, and the supply current is reduced to 1 µA.
Disconnecting the serial port or turning off the peripheral drivers
causes the auto-powerdown condition to occur. Auto-powerdown can be
disabled when FORCEON and FORCEOFF are high.
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