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MAX3227IDBR Datasheet(PDF) 1 Page - Texas Instruments |
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MAX3227IDBR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 13 page www.ti.com FEATURES APPLICATIONS DB PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 READY C1+ V+ C1− C2+ C2− V− RIN FORCEOFF VCC GND DOUT FORCEON DIN INVALID ROUT DESCRIPTION/ORDERING INFORMATION MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 • Battery-Powered, Hand-Held, and Portable • Meets or Exceeds the Requirements of Equipment TIA/EIA-232-F and ITU v.28 Standards • PDAs and Palmtop PCs • Operates With 3-V to 5.5-V VCC Supply • Notebooks, Sub-Notebooks, and Laptops • Operates at Least 1 Mbit/s • Digital Cameras • Low Standby Current . . . 1 µA Typ • Mobile Phones and Wireless Devices • External Capacitors . . . 4 × 0.1 µF • Accepts 5-V Logic Input With 3.3-V Supply • Designed to Be Interchangeable With Maxim™ MAX3227 • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II • ESD Protection for RS-232 I/O Pins – ±15 kV – Human-Body Model – ±8 kV – IEC61000-4-2, Contact Discharge – ±8 kV – IEC61000-4-2, Air-Gap Discharge • Auto-Powerdown Plus Feature Automatically Disables Drivers for Power Savings • Packaged in Plastic Shrink Small-Outline Package The MAX3227 consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV 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 MAX3227 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 MAX3227C is characterized for operation from 0 °C to 70°C. The MAX3227I is characterized for operation from –40 °C to 85°C. AVAILABLE OPTIONS PACKAGED DEVICE TA SHRINK SMALL OUTLINE (DB)(1) 0 °C to 70°C MAX3227CDB –40 °C to 85°C MAX3227IDB (1) The DB package is available taped and reeled. Add the suffix R to device type (e.g., MAX3227CDBR). Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2005–2006, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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