MAX3227 Series

1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus

Catalog(6 parts)

Part	Receiver Hysteresis▲▼	Type	Protocol	Mounting Type	Package / Case▲▼	Package / Case	Package / Case▲▼	Data Rate▲▼	Operating Temperature▲▼	Operating Temperature▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Duplex	Supplier Device Package
Texas Instruments MAX3227ECDBR 1/1 Transceiver Full RS232 16-SSOP	0.5 V	Transceiver	RS232	Surface Mount	0.005308600142598152 m	16-SSOP	0.0052999998442828655 m	1048576 bit/s	70 °C	0 °C	3 V	5.5 V	Full	16-SSOP
Texas Instruments MAX3227ECDB 1/1 Transceiver Full RS232 16-SSOP	0.5 V	Transceiver	RS232	Surface Mount	0.005308600142598152 m	16-SSOP	0.0052999998442828655 m	1048576 bit/s	70 °C	0 °C	3 V	5.5 V	Full	16-SSOP
Texas Instruments MAX3227CDB 1/1 Transceiver Full RS232 16-SSOP	0.5 V	Transceiver	RS232	Surface Mount	0.005308600142598152 m	16-SSOP	0.0052999998442828655 m	1048576 bit/s	70 °C	0 °C	3 V	5.5 V	Full	16-SSOP
Texas Instruments MAX3227EIDBG4 1/1 Transceiver Full RS232 16-SSOP	0.5 V	Transceiver	RS232	Surface Mount	0.005308600142598152 m	16-SSOP	0.0052999998442828655 m	1048576 bit/s	85 °C	-40 °C	3 V	5.5 V	Full	16-SSOP
Texas Instruments MAX3227EIDB 1/1 Transceiver Full RS232 16-SSOP	0.5 V	Transceiver	RS232	Surface Mount	0.005308600142598152 m	16-SSOP	0.0052999998442828655 m	1048576 bit/s	85 °C	-40 °C	3 V	5.5 V	Full	16-SSOP
Texas Instruments MAX3227CDBG4 1/1 Transceiver Full RS232 16-SSOP	0.5 V	Transceiver	RS232	Surface Mount	0.005308600142598152 m	16-SSOP	0.0052999998442828655 m	1048576 bit/s	70 °C	0 °C	3 V	5.5 V	Full	16-SSOP

Key Features

• For Smaller Packaging:MAX3228/MAX3229: +2.5V to +5.5V RS-232 Transceivers in UCSP™

• MAX3228/MAX3229: +2.5V to +5.5V RS-232 Transceivers in UCSP™

• For Low-Voltage or Data Cable Applications:MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

• MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

• For Integrated ESD Protection:MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E: ±15kV ESD-Protected, Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in UCSP)

• MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E: ±15kV ESD-Protected, Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in UCSP)

Description

The MAX3224–MAX3227/MAX3244/MAX3245 are 3V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with automatic shutdown/wakeup features and high data-rate capabilities.All devices achieve a 1µA supply current using Maxim's revolutionary AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive, and the UART driving the transmitter inputs is inactive for more than 30 seconds. They turn on again when they sense a valid transition at any transmitter or receiver input. AutoShutdown Plus saves power without changes to the existing BIOS or operating system.The MAX3225/MAX3227/MAX3245 also feature MegaBaud™ operation, guaranteeing 1Mbps for highspeed applications such as communicating with ISDN modems. The MAX3224/MAX3226/MAX3244 guarantee 250kbps operation. The transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a 3.3V supply. The MAX3224-MAX3227 feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.All devices are available in a space-saving TSSOP and SSOP packages.ApplicationsBattery-Powered EquipmentCell PhonesHandheld EquipmentNotebook, Subnotebook, and Palmtop ComputersPeripheralsPrinters