TRS3227 Series
3- to 5.5-V single channel 1Mbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Type | Protocol | Data Rate▲▼ | Supplier Device Package | Duplex | Mounting Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Receiver Hysteresis▲▼ | Package / Case▲▼ | Package / Case | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Transceiver | RS232 | 1048576 bit/s | 16-SSOP | Full | Surface Mount | 70 °C | 0 °C | 3 V | 5.5 V | 0.5 V | 0.005308600142598152 m | 16-SSOP | 0.0052999998442828655 m | |
Transceiver | RS232 | 1048576 bit/s | 16-SSOP | Full | Surface Mount | 85 °C | -40 °C | 3 V | 5.5 V | 0.5 V | 0.005308600142598152 m | 16-SSOP | 0.0052999998442828655 m |
Key Features
• Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 StandardsOperates With 3-V to 5.5-V VCCSupplyOperates at Least 1 Mbit/sLow Standby Current . . . 1 µA TypExternal Capacitors . . . 4 × 0.1 µFAccepts 5-V Logic Input With 3.3-V SupplyDesigned to Be Interchangeable With Industry Standard '3227E DevicesLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection for RS-232 I/O Pins±15 kV — Human-Body Model±8 kV — IEC61000-4-2, Contact Discharge±15 kV — IEC61000-4-2, Air-Gap DischargeAuto-Powerdown Plus Feature Automatically Disables Drivers for Power SavingsPackaged in Plastic Shrink Small-Outline PackageAPPLICATIONSBattery-Powered, Hand-Held, and Portable EquipmentPDAs and Palmtop PCsNotebooks, Sub-Notebooks, and LaptopsDigital CamerasMobile Phones and Wireless DevicesAll other trademarks are the property of their respective ownersMeets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 StandardsOperates With 3-V to 5.5-V VCCSupplyOperates at Least 1 Mbit/sLow Standby Current . . . 1 µA TypExternal Capacitors . . . 4 × 0.1 µFAccepts 5-V Logic Input With 3.3-V SupplyDesigned to Be Interchangeable With Industry Standard '3227E DevicesLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection for RS-232 I/O Pins±15 kV — Human-Body Model±8 kV — IEC61000-4-2, Contact Discharge±15 kV — IEC61000-4-2, Air-Gap DischargeAuto-Powerdown Plus Feature Automatically Disables Drivers for Power SavingsPackaged in Plastic Shrink Small-Outline PackageAPPLICATIONSBattery-Powered, Hand-Held, and Portable EquipmentPDAs and Palmtop PCsNotebooks, Sub-Notebooks, and LaptopsDigital CamerasMobile Phones and Wireless DevicesAll other trademarks are the property of their respective owners
Description
AI
The TRS3227E 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 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 3-V to 5.5-V supply. This device operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum of 30-V/µs driver output slew rate. This device also features a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.
The TRS3227E achieves a 1-µA supply current using the auto-powerdown plus feature. This device automatically enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system.
The TRS3227EC is characterized for operation from 0°C to 70°C. The TRS3227EI is characterized for operation from -40°C to 85°C.
The TRS3227E 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 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 3-V to 5.5-V supply. This device operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum of 30-V/µs driver output slew rate. This device also features a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.
The TRS3227E achieves a 1-µA supply current using the auto-powerdown plus feature. This device automatically enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system.
The TRS3227EC is characterized for operation from 0°C to 70°C. The TRS3227EI is characterized for operation from -40°C to 85°C.