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MAX3280EAUK Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3280EAUK Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 11 page General Description The MAX3280E/MAX3281E/MAX3283E/MAX3284E are single receivers designed for RS-485 and RS-422 com- munication. These devices guarantee data rates up to 52Mbps, even with a 3V power supply. Excellent propa- gation delay (15ns max) and package-to-package skew time (8ns max) make these devices ideal for mul- tidrop clock distribution applications. The MAX3280E/MAX3281E/MAX3283E/MAX3284E have true fail-safe circuitry, which guarantees a logic- high receiver output when the receiver inputs are opened or shorted. The receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). These devices feature 1/4-unit-load receiver input impedance, allowing up to 128 receivers on the same bus. The MAX3280E is a single receiver available in a 5-pin SOT23 package. The MAX3281E/MAX3283E single receivers have a receiver enable (EN or EN) function and are offered in a 6-pin SOT23 package. The MAX3284E features a voltage logic pin that allows com- patibility with low-voltage logic levels, as in digital FPGAs/ASICs. On the MAX3284E, the voltage threshold for a logic high is user-defined by setting VL in the range from 1.65V to VCC. The MAX3284E is also offered in a 6-pin SOT23 package. Applications Clock Distribution Telecom Racks Base Stations Industrial Control Local Area Networks Features o ESD Protection: ±15kV–Human Body Model ±6kV–IEC 1000-4-2, Contact Discharge ±12kV–IEC 1000-4-2, Air-Gap Discharge o Guaranteed 52Mbps Data Rate o Guaranteed 15ns Receiver Propagation Delay o Guaranteed 2ns Receiver Skew o Guaranteed 8ns Package-to-Package Skew Time o VL Pin for Connection to FPGAs/ASICs o Allow Up to 128 Transceivers on the Bus (1/4-unit-load) o Tiny SOT23 Package o True Fail-Safe Receiver o -7V to +12V Common-Mode Range o 3V to 5.5V Power-Supply Range o Enable (High and Low) Pins for Redundant Operation o Three-State Output Stage (MAX3281E/MAX3283E) o Thermal Protection Against Output Short Circuit ±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers ________________________________________________________________ Maxim Integrated Products 1 Ordering Information 19-2320; Rev 0; 1/02 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. Pin Configurations appear at end of data sheet. PART TEMP RANGE PIN- PACKAGE TOP MARK MAX3280EAUK-T -40°C to +125°C 5 SOT23-5 ADVM MAX3281EAUT-T -40°C to +125°C 6 SOT23-6 ABAT MAX3283EAUT-T -40°C to +125°C 6 SOT23-6 ABAU MAX3284EAUT-T -40°C to +125°C 6 SOT23-6 ABAV Selector Guide PART VL ENABLE DATA RATE PACKAGE MAX3280E —— 52Mbps 5-Pin SOT23 MAX3281E — Active High 52Mbps 6-Pin SOT23 MAX3283E — Active Low 52Mbps 6-Pin SOT23 MAX3284E ✔ — 52Mbps (Note 1) 6-Pin SOT23 Note 1: MAX3284E data rate is dependent on VL. |
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