TRS3318E Series

2.5-V dual channel 460kbps RS-232 line driver/receiver with +/-8-kV IEC-ESD protection

Catalog

2.5-V dual channel 460kbps RS-232 line driver/receiver with +/-8-kV IEC-ESD protection

Part	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Receiver Hysteresis	Protocol	Package / Case	Type	Data Rate	Number of Drivers/Receivers [custom]	Number of Drivers/Receivers [custom]	Duplex	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case [y]	Package / Case [x]
Texas Instruments TRS3318EIDB	Surface Mount	20-SSOP	85 °C	-40 °C	300 mV	RS232	20-SSOP	Transceiver	460 Kbps	2	2	Full	2.25 V	3 V
Texas Instruments TRS3318EIPW	Surface Mount	20-TSSOP	85 °C	-40 °C	300 mV	RS232	20-TSSOP	Transceiver	460 Kbps	2	2	Full	2.25 V	3 V	4.4 mm	0.173 in
Texas Instruments TRS3318ECPW	Surface Mount	20-TSSOP	70 °C	0 °C	300 mV	RS232	20-TSSOP	Transceiver	460 Kbps	2	2	Full	2.25 V	3 V	4.4 mm	0.173 in
Texas Instruments TRS3318EIPWRG4	Surface Mount	20-TSSOP	85 °C	-40 °C	300 mV	RS232	20-TSSOP	Transceiver	460 Kbps	2	2	Full	2.25 V	3 V	4.4 mm	0.173 in
Texas Instruments TRS3318ECDBR	Surface Mount	20-SSOP	70 °C	0 °C	300 mV	RS232	20-SSOP	Transceiver	460 Kbps	2	2	Full	2.25 V	3 V
Texas Instruments TRS3318EIPWR	Surface Mount	20-TSSOP	85 °C	-40 °C	300 mV	RS232	20-TSSOP	Transceiver	460 Kbps	2	2	Full	2.25 V	3 V	4.4 mm	0.173 in

Catalog

2.5-V dual channel 460kbps RS-232 line driver/receiver with +/-8-kV IEC-ESD protection

Key Features

• ESD Protection for RS-232 I/O Pins±15 kV (Human-Body Model)±8 kV (IEC 61000-4-2, Contact Discharge)±15 kV (IEC 61000-4-2, Air-Gap Discharge)300-µA Operating Supply Current1-µA Low-Power Standby Mode (With Receivers Active)Designed to Transmit at a Data Rate of460 kbpsAuto-Powerdown Plus Option Features Flexible Power-Saving ModeOperates From a Single 2.25-V to 3-V VCCSupplyDesigned to be Interchangeable With Industry Standard '3318 DevicesESD Protection for RS-232 I/O Pins±15 kV (Human-Body Model)±8 kV (IEC 61000-4-2, Contact Discharge)±15 kV (IEC 61000-4-2, Air-Gap Discharge)300-µA Operating Supply Current1-µA Low-Power Standby Mode (With Receivers Active)Designed to Transmit at a Data Rate of460 kbpsAuto-Powerdown Plus Option Features Flexible Power-Saving ModeOperates From a Single 2.25-V to 3-V VCCSupplyDesigned to be Interchangeable With Industry Standard '3318 Devices

Description

The TRS3318E is a dual-driver, dual-receiver, RS-232-compatible transceiver. The device features auto-powerdown plus and enhanced electrostatic discharge (ESD) protection integrated into the chip. Driver output and receiver input are protected to ±15 kV using the IEC 61000-4-2 Air-Gap Discharge method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model (HBM). The device operates at a data rate of 460 kbps. The transceiver has a proprietary low-dropout driver output stage, enabling RS-232-compatible operation from a 2.25-V to 3-V supply with a dual charge pump. The charge pump requires only four 0.1-µF capacitors and features a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting. The TRS3318E achieves a 1-µA supply current using the auto-powerdown feature. This device automatically enters a low-power power-down mode when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 s. The device turns on again when it senses a valid transition at any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system. This device is available in two space-saving packages: 20-pin SSOP and 20-pin TSSOP. The TRS3318E is a dual-driver, dual-receiver, RS-232-compatible transceiver. The device features auto-powerdown plus and enhanced electrostatic discharge (ESD) protection integrated into the chip. Driver output and receiver input are protected to ±15 kV using the IEC 61000-4-2 Air-Gap Discharge method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model (HBM). The device operates at a data rate of 460 kbps. The transceiver has a proprietary low-dropout driver output stage, enabling RS-232-compatible operation from a 2.25-V to 3-V supply with a dual charge pump. The charge pump requires only four 0.1-µF capacitors and features a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting. The TRS3318E achieves a 1-µA supply current using the auto-powerdown feature. This device automatically enters a low-power power-down mode when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 s. The device turns on again when it senses a valid transition at any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system. This device is available in two space-saving packages: 20-pin SSOP and 20-pin TSSOP.