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MAX3080 数据表(PDF) 1 Page - Maxim Integrated Products |
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MAX3080 数据表(HTML) 1 Page - Maxim Integrated Products |
1 / 20 page Selection Table *Pin-compatible with 75180, with additional features implemented using pins 1, 6, 8, and 13. Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers ________________________________________________________________ Maxim Integrated Products 1 19-1138; Rev 1; 12/97 14 SO -40°C to +85°C MAX3080ESD 14 Plastic DIP 14 SO 14 Plastic DIP PIN-PACKAGE TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C MAX3080EPD MAX3080CSD MAX3080CPD PART 256 256 256 256 256 256 256 256 256 256 Transceivers On Bus 75180* 14 375 Yes Yes Selectable Selectable Selectable MAX3089 75176 8 375 Yes Yes No 10 Half MAX3088 75179 8 375 No No No 10 Full MAX3087 75180 14 375 Yes Yes No 10 Full MAX3086 75176 8 375 Yes Yes Yes 0.5 Half MAX3085 75179 8 375 No No Yes 0.5 Full MAX3084 75180 14 375 Yes Yes Yes 0.5 Full MAX3083 75176 8 375 Yes Yes Yes 0.115 Half MAX3082 75179 8 375 No No Yes 0.115 Full MAX3081 75180 14 375 Yes Yes Yes 0.115 Full MAX3080 Industry- Standard Pinout Pin Count Quiescent Current (µA) Receiver/ Driver Enable Low- Power Shutdown Slew Rate Limited Data Rate (Mbps) Half/Full Duplex Part Ordering Information continued on last page. Ordering Information General Description The MAX3080–MAX3089 high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3080/MAX3081/MAX3082 feature reduced slew-rate drivers that minimize EMI and reduce reflec- tions caused by improperly terminated cables, allowing error-free data transmission up to 115kbps. The MAX3083/MAX3084/MAX3085 offer higher driver out- put slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086/MAX3087/MAX3088’s driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089’s slew rate is selectable between 115kbps, 500kbps, and 10Mbps by driving a selector pin with a single three-state driver. These transceivers typically draw 375µA of supply current when unloaded, or when fully loaded with the drivers disabled. All devices have a 1/8-unit-load receiver input imped- ance that allows up to 256 transceivers on the bus. The MAX3082/MAX3085/MAX3088 are intended for half- duplex communications, while the MAX3080/MAX3081/ MAX3083/MAX3084/MAX3086/MAX3087 are intended for full-duplex communications. The MAX3089 is selec- table between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins. Features o True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility o Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX3080–MAX3085/MAX3089) o 1nA Low-Current Shutdown Mode (except MAX3081/MAX3084/MAX3087) o Pin-Selectable Full/Half-Duplex Operation (MAX3089) o Phase Controls to Correct for Twisted-Pair Reversal (MAX3089) o Allow Up to 256 Transceivers on the Bus Applications RS-422/RS-485 Communications Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. |
类似零件编号 - MAX3080 |
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类似说明 - MAX3080 |
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