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MAX3318 Datasheet(PDF) 1 Page - Texas Instruments |
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MAX3318 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 18 page 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 READY C1+ V+ C1− C2+ C2− V− DOUT2 RIN2 ROUT2 FORCEOFF VCC GND DOUT1 RIN1 ROUT1 FORCEON DIN1 DIN2 INVALID DB OR PW PACKAGE (TOP VIEW) MAX3318 www.ti.com SLLS687A – OCTOBER 2005 – REVISED OCTOBER 2013 2.5-V 460-kbps RS-232 TRANSCEIVER WITH ±15-kV ESD PROTECTION Check for Samples: MAX3318 1 FEATURES DESCRIPTION The MAX3318 is a dual-driver, dual-receiver, RS-232 • ESD Protection for RS-232 I/O Pins compatible transceiver. The device features auto- – ±15 kV (Human-Body Model) power-down plus and enhanced electrostatic – ±8 kV (IEC 61000-4-2, Contact Discharge) discharge (ESD) protection integrated into the chip. Driver output and receiver input are protected to ±8 – ±8 kV (IEC 61000-4-2, Air-Gap Discharge) kV using the IEC 61000-4-2 Air-Gap Discharge • 300- μA Operating Supply Current method, ±8 kV using the IEC 61000-4-2 Contact • 1- μA Low-Power Standby (With Receivers Discharge method, and ±15 kV using the Human- Active) Mode Body Model (HBM). • Designed to Transmit at a Data Rate of The device operates at a data rate of 460 kbps. The 460 kbps transceiver has a proprietary low-dropout driver output stage enabling RS-232-compatible operation • Auto-Power-Down Plus Option Features from a 2.25-V to 3-V supply with a dual charge pump. Flexible Power-Saving Mode The charge pump requires only four 0.1- μF • Operates From a Single 2.25-V to 3-V VCC capacitors and features a logic-level output (READY) Supply that asserts when the charge pump is regulating and the device is ready to begin transmitting. APPLICATIONS The MAX3318 achieves a 1- μA supply current using • Battery-Powered Systems the auto-power-down feature. This device • PDAs automatically enters a low-power power-down mode when the RS-232 cable is disconnected or the drivers • Cellular Phones of the connected peripherals are inactive for more • Notebooks than 30 s. The device turns on again when it senses • Hand-Held Equipment a valid transition at any driver or receiver input. Auto power down saves power without changes to the • Pagers existing BIOS or operating system. This device is available in two space-saving packages: 20-pin SSOP and 20-pin TSSOP. 1 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. PRODUCTION DATA information is current as of publication date. Copyright © 2005–2013, 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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