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MAX3318EAP Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3318EAP Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 15 page General Description The MAX3316–MAX3319 transceivers have a proprietary low-dropout transmitter output stage enabling RS-232- compatible performance from +2.25V to +3.0V with a dual-charge pump. These devices require only four 0.1µF capacitors, and are guaranteed to operate at data rates up to 460kbps. The MAX3318/MAX3319 achieve a 1µA supply current using Maxim’s revolutionary AutoShutdown Plus™ fea- ture. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inac- tive 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 MAX3318 is a 2-Tx/2-Rx device while the MAX3319 is a 1-Tx/1-Rx device. These devices also feature a logic-level output (READY) that asserts when the charge pump is regulat- ing and the device is ready to begin transmitting. The MAX3316/MAX3317 are 2-Tx/2-Rx transceivers. The MAX3317 features a 1µA shutdown mode that can be entered by driving SHDN low. The MAX3317’s receivers remain active while in shutdown mode, allowing external devices such as modems to be monitored using only 1µA supply current. These devices are available in space-saving packages: MAX3316 (16-pin SSOP and 20-pin TSSOP), MAX3317/ MAX3318 (20-pin SSOP and 20-pin TSSOP), and MAX3319 (16-pin SSOP). ________________________Applications Palmtop Computers Hand-Held Instruments Pagers Cellular Phones GPS Handy Terminals Hand-Held Electronic Books Features o AutoShutdown Plus (MAX3318/MAX3319) o 300µA Operating Supply Current o 1µA Low-Power Shutdown with Receivers Active o Guaranteed 460kbps Data Rate o Guaranteed 4V/µs Slew Rate o RS-232 Compatible Down to 2.25V 2.5V, 1µA, 460kbps, RS-232-Compatible Transceivers ________________________________________________________________ Maxim Integrated Products 1 MAX3319 FORCEON READY AutoShutdown Plus 12 1 R1OUT 9 FORCEOFF 16 INVALID 10 GND 14 T1IN 11 C2- 6 C2+ 5 C1- 4 C1+ 2 R1IN 8 T1OUT 13 V- 7 V+ 3 VCC VCC C4 0.1 µF C3 0.1 µF 0.1 µF 15 C1 0.1 µF C2 0.1 µF CBYPASS +2.5V TO POWER- MANAGEMENT UNIT 5k CMOS INPUT RS-232- COMPATIBLE OUTPUT RS-232- COMPATIBLE INPUT CMOS OUTPUT Typical Application Circuits 19-1751; Rev 0; 6/00 Ordering Information AutoShutdown Plus is a trademark of Maxim Integrated Products. Pin Configurations appear at end of data sheet. Typical Application Circuits continued at end of data sheet. PIN-PACKAGE TEMP. RANGE PART MAX3316CUP 0°C to +70°C 20 TSSOP 16 SSOP 0°C to +70°C MAX3316CAE MAX3316EUP -40°C to +85°C 20 TSSOP 16 SSOP -40°C to +85°C MAX3316EAE PART NO. OF DRIVERS/ RECEIVERS GUARANTEED DATA RATE (kbps) READY OUTPUT SHUTDOWN — — 460 460 — — — 460 460 2/2 2/2 2/2 1/1 MAX3316 MAX3317 MAX3318 MAX3319 AutoShutdown Plus — — Selector Guide Ordering Information continued at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. |
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