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MAX3224CUP+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3224CUP+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 19 page 1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. AutoShutdown Plus, MegaBaud, and UCSP are trademarks of Maxim Integrated Products, Inc. 19-1289; Rev 5; 2/11 ________________General 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 receiv- er 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 high- speed 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 regulat- ing and the device is ready to begin transmitting. All devices are available in a space-saving TQFN, TSSOP, and SSOP packages. ________________________Applications Notebook, Subnotebook, and Palmtop Computers Cellular Phones Battery-Powered Equipment Handheld Equipment Peripherals Printers _Next Generation Device Features ♦♦ For Smaller Packaging: 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 ♦♦ 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) PART MAX3224 MAX3225 MAX3226 1/1 2/2 2/2 NO. OF DRIVERS/ RECEIVERS READY OUTPUT ✔ ✔ ✔ Auto- Shutdown Plus ✔ ✔ ✔ 250k 1M 250k GUARANTEED DATA RATE (bps) MAX3227 MAX3244 MAX3245 3/5 3/5 1/1 ✔ — — ✔ ✔ ✔ 1M 250k 1M _____________________ Selector Guide _______________Ordering Information PART TEMP RANGE PIN-PACKAGE MAX3224CPP+ 0 °C to +70°C 20 PDIP MAX3224CAP+ 0 °C to +70°C 20 SSOP MAX3224CTP+ 0 °C to +70°C 20 TQFN-EP* MAX3224CUP+ 0 °C to +70°C 20 TSSOP MAX3224EPP+ -40 °C to +85°C 20 PDIP MAX3224EAP+ -40 °C to +85°C 20 SSOP MAX3224ETP+ -40 °C to +85°C 20 TQFN-EP* MAX3224EUP+ -40 °C to +85°C 20 TSSOP + Denotes a lead(Pb)-free/RoHS-compliant package. * EP = Exposed pad. Ordering Information continued at end of data sheet. |
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