2024年2月25日发(作者：守展鹏)
找MEMORY、二三极管上美光存储
MAX13487E/MAX13488E
General DescriptionThe MAX13487E/MAX13488E +5V, half-duplex, ±15kV
ESD-protected RS-485/RS-422-compatible transceivers
feature one driver and one receiver. The MAX13487E/MAX13488E include a hot-swap capability to eliminate
false transitions on the bus during power-up or live
insertion.
The MAX13487E/MAX13488E feature Maxim’s propri-etary AutoDirection control. This architecture makes the
devices ideal for applications, such as isolated RS-485
ports, where the driver input is used in conjunction with
the driver-enable signal to drive the differential MAX13487E features reduced slew-rate drivers
that minimize EMI and reduce reflections caused by
improperly terminated cables, allowing error-free trans-mission up to 500kbps. The MAX13488E driver slew
rate is not limited, allowing transmit speeds up to
16Mbps.
The MAX13487E/MAX13488E feature a 1/4-unit load
receiver input impedance, allowing up to 128 trans-ceivers on the bus. These devices are intended for half-duplex communications. All driver outputs are
protected to ±15kV ESD using the Human Body Model.
The MAX13487E/MAX13488E are available in an 8-pin
SO package. The devices operate over the extended
-40°C to +85°C temperature ationsIsolated RS-485 InterfacesUtility MetersIndustrial ControlsIndustrial Motor DrivesAutomated HVAC SystemsOrdering Information/Selector GuidePARTPIN-PACKAGESLEW-RATELIMITEDMAX13487EESA+8 SOYesMAX13488EESA+8 SONo+Denotes a lead(Pb)-free/RoHS-compliant :All devices operate over the -40°C to +85°C temperaturerange.19-0740; Rev 1; 2/15Half-Duplex RS-485-/RS-422-Compatible Transceiver withAutoDirection Control
Benefits and Features•AutoDirection Saves Space and BOM Cost•AutoDirection Enables Driver Automatically onTransmission, Eliminating an Opto or OtherDiscrete Means of Isolation•8-Pin SO Package•Robust Protection Features for Telecom, Industrial,and Isolated Applications•Hot-Swap Capability to Eliminate False Transitionson the Bus During Power-Up or Live Insertion•Extended ESD Protection for RS-485 I/O Pins(±15kV Human Body Model)•Options Optimize Designs for Speed or ErrorlessData Transmission•Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX13487E)•High-Speed Version (MAX13488E) Allows forTransmission Speeds Up to 16Mbps•1/4-Unit Load, Allowing Up to 128 Transceivers onthe BusFunctional DiagramMAX13487EMAX13488EVCC81RO+R-2RERE3SHDN-VDTB7COM+A6RISTATEDIMACHINEDE4DDIGND5Pin Configuration/Typical Application Circuit appear at endof data sheet.
MAX13487E/MAX13488EHalf-Duplex RS-485-/RS-422-Compatible Transceiver withAutoDirection ControlTypical Operating Characteristics (continued)(VCC= +5.0V, TA= +25°C, unless otherwise noted.)RECEIVER PROPAGATION vs. TEMPERATURE(MAX13488E)MAX13487Etoc16DRIVER PROPAGATION (500kbps)(MAX13487E)MAX13487Etoc17DRIVER PROPAGATION (16Mbps)(MAX13488E)MAX13487Etoc1840RECEIVER
PROPAGATION
(ns)30tRPLH20tRPHLDI2V/divDI2V/div10A-B5V/div WAVEFORM INTENSITY: 68%-40-151ns/div10ns/divA-B5V/div0TEMPERATURE (°C)RECEIVER PROPAGATION (16Mbps)(MAX13488E)MAX13487Etoc19DRIVING 16nF (19.2kbps)(MAX13487E)B2V/divMAX13487Etoc20DI2V/divA2V/divRO2V/divA-B5V/div10ns/div10μs/divDRIVING 16nF (19.2kbps)(MAX13488E)MAX13487Etoc21DRIVING 16nF (750kbps)(MAX13488E)MAX13487Etoc22DI2V/divDI2V/divA-B5V/divA-B5V/div10μs/div400ns/div Integrated | 7
2024年2月25日发(作者：守展鹏)
找MEMORY、二三极管上美光存储
MAX13487E/MAX13488E
General DescriptionThe MAX13487E/MAX13488E +5V, half-duplex, ±15kV
ESD-protected RS-485/RS-422-compatible transceivers
feature one driver and one receiver. The MAX13487E/MAX13488E include a hot-swap capability to eliminate
false transitions on the bus during power-up or live
insertion.
The MAX13487E/MAX13488E feature Maxim’s propri-etary AutoDirection control. This architecture makes the
devices ideal for applications, such as isolated RS-485
ports, where the driver input is used in conjunction with
the driver-enable signal to drive the differential MAX13487E features reduced slew-rate drivers
that minimize EMI and reduce reflections caused by
improperly terminated cables, allowing error-free trans-mission up to 500kbps. The MAX13488E driver slew
rate is not limited, allowing transmit speeds up to
16Mbps.
The MAX13487E/MAX13488E feature a 1/4-unit load
receiver input impedance, allowing up to 128 trans-ceivers on the bus. These devices are intended for half-duplex communications. All driver outputs are
protected to ±15kV ESD using the Human Body Model.
The MAX13487E/MAX13488E are available in an 8-pin
SO package. The devices operate over the extended
-40°C to +85°C temperature ationsIsolated RS-485 InterfacesUtility MetersIndustrial ControlsIndustrial Motor DrivesAutomated HVAC SystemsOrdering Information/Selector GuidePARTPIN-PACKAGESLEW-RATELIMITEDMAX13487EESA+8 SOYesMAX13488EESA+8 SONo+Denotes a lead(Pb)-free/RoHS-compliant :All devices operate over the -40°C to +85°C temperaturerange.19-0740; Rev 1; 2/15Half-Duplex RS-485-/RS-422-Compatible Transceiver withAutoDirection Control
Benefits and Features•AutoDirection Saves Space and BOM Cost•AutoDirection Enables Driver Automatically onTransmission, Eliminating an Opto or OtherDiscrete Means of Isolation•8-Pin SO Package•Robust Protection Features for Telecom, Industrial,and Isolated Applications•Hot-Swap Capability to Eliminate False Transitionson the Bus During Power-Up or Live Insertion•Extended ESD Protection for RS-485 I/O Pins(±15kV Human Body Model)•Options Optimize Designs for Speed or ErrorlessData Transmission•Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX13487E)•High-Speed Version (MAX13488E) Allows forTransmission Speeds Up to 16Mbps•1/4-Unit Load, Allowing Up to 128 Transceivers onthe BusFunctional DiagramMAX13487EMAX13488EVCC81RO+R-2RERE3SHDN-VDTB7COM+A6RISTATEDIMACHINEDE4DDIGND5Pin Configuration/Typical Application Circuit appear at endof data sheet.
MAX13487E/MAX13488EHalf-Duplex RS-485-/RS-422-Compatible Transceiver withAutoDirection ControlTypical Operating Characteristics (continued)(VCC= +5.0V, TA= +25°C, unless otherwise noted.)RECEIVER PROPAGATION vs. TEMPERATURE(MAX13488E)MAX13487Etoc16DRIVER PROPAGATION (500kbps)(MAX13487E)MAX13487Etoc17DRIVER PROPAGATION (16Mbps)(MAX13488E)MAX13487Etoc1840RECEIVER
PROPAGATION
(ns)30tRPLH20tRPHLDI2V/divDI2V/div10A-B5V/div WAVEFORM INTENSITY: 68%-40-151ns/div10ns/divA-B5V/div0TEMPERATURE (°C)RECEIVER PROPAGATION (16Mbps)(MAX13488E)MAX13487Etoc19DRIVING 16nF (19.2kbps)(MAX13487E)B2V/divMAX13487Etoc20DI2V/divA2V/divRO2V/divA-B5V/div10ns/div10μs/divDRIVING 16nF (19.2kbps)(MAX13488E)MAX13487Etoc21DRIVING 16nF (750kbps)(MAX13488E)MAX13487Etoc22DI2V/divDI2V/divA-B5V/divA-B5V/div10μs/div400ns/div Integrated | 7