TRSF3222 Series
3- to 5.5-V dual channel 1Mbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection
Manufacturer: Texas Instruments
Catalog(4 parts)
| Part | Protocol | Type | Mounting Type | Package / Case▲▼ | Package / Case | Receiver Hysteresis▲▼ | Supplier Device Package | Number of Drivers/Receivers▲▼ | Number of Drivers/Receivers▲▼ | Duplex | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Data Rate▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RS232 | Transceiver | Surface Mount | 0.007493000011891127 m, 0.007499999832361937 m | 20-SOIC | 0.30000001192092896 V | 20-SOIC | 2 ul | 2 ul | Full | 3 V | 5.5 V | 512000 bit/s | 70 °C | 0 °C | ||
RS232 | Transceiver | Surface Mount | 0.004394200164824724 m | 20-TSSOP | 0.30000001192092896 V | 20-TSSOP | 2 ul | 2 ul | Full | 3 V | 5.5 V | 512000 bit/s | 85 °C | -40 °C | 0.004399999976158142 m | |
RS232 | Transceiver | Surface Mount | 0.004394200164824724 m | 20-TSSOP | 0.30000001192092896 V | 20-TSSOP | 2 ul | 2 ul | Full | 3 V | 5.5 V | 512000 bit/s | 85 °C | -40 °C | 0.004399999976158142 m | |
RS232 | Transceiver | Surface Mount | 0.004394200164824724 m | 20-TSSOP | 0.30000001192092896 V | 20-TSSOP | 2 ul | 2 ul | Full | 3 V | 5.5 V | 512000 bit/s | 70 °C | 0 °C | 0.004399999976158142 m |
Key Features
• ESD Protection for RS-232 bus pins±15-kV Human-body model (HBM)±8-kV IEC 61000-4-2, Contact discharge±15-kV IEC 61000-4-2, Air-gap dischargeMeets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standardsOperates with 3-V to 5.5-V VCCsupplyOperates up to 1000 kbit/sTwo drivers and two receiversLow standby current . . . 1 µA TypExternal capacitors . . . 4 × 0.1 µFAccepts 5-V logic input with 3.3-V supplyESD Protection for RS-232 bus pins±15-kV Human-body model (HBM)±8-kV IEC 61000-4-2, Contact discharge±15-kV IEC 61000-4-2, Air-gap dischargeMeets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standardsOperates with 3-V to 5.5-V VCCsupplyOperates up to 1000 kbit/sTwo drivers and two receiversLow standby current . . . 1 µA TypExternal capacitors . . . 4 × 0.1 µFAccepts 5-V logic input with 3.3-V supply
Description
AI
The TRSF3222E consists 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 TRSF3222E meets the requirements of TIA/EIA-232-F and 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 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.
The TRSF3222E consists 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 TRSF3222E meets the requirements of TIA/EIA-232-F and 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 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.