TRS3221 Series
3- to 5.5-V single channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection
Manufacturer: Texas Instruments
Catalog(11 parts)
| Part | Package / Case▲▼ | Package / Case | Package / Case▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Protocol | Type | Duplex | Mounting Type | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Receiver Hysteresis▲▼ | Supplier Device Package | Data Rate▲▼ | Secondary Attributes | Function | Supplied Contents | Utilized IC / Part | Embedded▲▼ | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.004394200164824724 m | 16-TSSOP | 0.004399999976158142 m | -40 °C | 85 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-TSSOP | 256000 bit/s | ||||||||
0.004394200164824724 m | 16-TSSOP | 0.004399999976158142 m | 0 °C | 70 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-TSSOP | 256000 bit/s | ||||||||
16-VFQFN Exposed Pad | -40 °C | 85 °C | RS232 | Transceiver | Full | Surface Mount | 3 V, 4.5 V | 3.5999999046325684 V, 5.5 V | 0.5 V | 16-VQFN (3x3) | 512000 bit/s | ||||||||||
0.004394200164824724 m | 16-TSSOP | 0.004399999976158142 m | 0 °C | 70 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-TSSOP | 256000 bit/s | ||||||||
0.004394200164824724 m | 16-TSSOP | 0.004399999976158142 m | -40 °C | 85 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-TSSOP | 256000 bit/s | ||||||||
0.004394200164824724 m | 16-TSSOP | 0.004399999976158142 m | -40 °C | 85 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-TSSOP | 256000 bit/s | ||||||||
Interface | On-Board Test Points | Transceiver, RS-232 | Board(s) | TRS3221E | |||||||||||||||||
16-SSOP | 0 °C | 70 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-SSOP | 256000 bit/s | 0.005308600142598152 m | 0.0052999998442828655 m | ||||||||
0.004394200164824724 m | 16-TSSOP | 0.004399999976158142 m | -40 °C | 85 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-TSSOP | 256000 bit/s | ||||||||
16-SSOP | 0 °C | 70 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-SSOP | 256000 bit/s | 0.005308600142598152 m | 0.0052999998442828655 m | ||||||||
16-SSOP | 0 °C | 70 °C | RS232 | Transceiver | Full | Surface Mount | 3 V | 5.5 V | 0.5 V | 16-SSOP | 256000 bit/s | 0.005308600142598152 m | 0.0052999998442828655 m |
Key Features
• ESD Protection for RS-232 Pins±15kV Human-Body Model (HBM)±8kV (IEC 61000-4-2, contact discharge)±15kV (IEC 61000-4-2, air-gap discharge)Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standardsOperates with 3V to 5.5V VCC supplyOperates up to 250kbit/sOne driver and one receiverNear chip-scale package, 16-pin VQFN (RGT, 82% smaller than TSSOP package)Low standby current: 1µA TypicalExternal capacitors: 4 × 0.1µFAccepts 5V logic input with 3.3V supplyAlternative high-speed pin-compatible device (1Mbit/s)TRSF3221EAuto-powerdown feature automatically disables drivers for power savingsESD Protection for RS-232 Pins±15kV Human-Body Model (HBM)±8kV (IEC 61000-4-2, contact discharge)±15kV (IEC 61000-4-2, air-gap discharge)Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standardsOperates with 3V to 5.5V VCC supplyOperates up to 250kbit/sOne driver and one receiverNear chip-scale package, 16-pin VQFN (RGT, 82% smaller than TSSOP package)Low standby current: 1µA TypicalExternal capacitors: 4 × 0.1µFAccepts 5V logic input with 3.3V supplyAlternative high-speed pin-compatible device (1Mbit/s)TRSF3221EAuto-powerdown feature automatically disables drivers for power savings
Description
AI
The TRS3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC G1000-4-2 ESD protection. The device 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 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs driver output slew rate.
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 device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled. If FORCEOFF is set low and EN 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.
With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high (valid data) if the receiver input voltage is greater than 2.7V or less than –2.7V, or has been between –0.3V and 0.3V for less than 30µs. INVALID is low (invalid data) if the receiver input voltage is between –0.3V and 0.3V for more than 30µs. Refer to Figure 6-5 for receiver input levels.
The TRS3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC G1000-4-2 ESD protection. The device 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 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs driver output slew rate.
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 device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled. If FORCEOFF is set low and EN 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.
With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high (valid data) if the receiver input voltage is greater than 2.7V or less than –2.7V, or has been between –0.3V and 0.3V for less than 30µs. INVALID is low (invalid data) if the receiver input voltage is between –0.3V and 0.3V for more than 30µs. Refer to Figure 6-5 for receiver input levels.