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™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive 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 regulating 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 active-low 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).ApplicationsCell PhonesGlobal Positioning Systems (GPS)Handheld Electronic BooksHandheld Instruments (PDAs, Palmtops)Handy TerminalsPagersPalmtop Computers

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™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive 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 regulating 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 active-low 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).ApplicationsCell PhonesGlobal Positioning Systems (GPS)Handheld Electronic BooksHandheld Instruments (PDAs, Palmtops)Handy TerminalsPagersPalmtop Computers

The MAX3380E/MAX3381E are +2.35V to +5.5V-poweredEIA/TIA-232 and V.28/V.24 communication interfaceswith low power requirements, high data-ratecapabilities, and enhanced electrostatic discharge(ESD) protection on both the TTL and RS-232 sides.The MAX3380E/MAX3381E have two receivers and twotransmitters. All RS-232 inputs, outputs, and logic inputpins are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge method and the Human Body Model, and ±8kV using IEC 1000-4-2 Contact Dischargemethod.The proprietary low-dropout transmitter output stageenables true RS-232 performance from a +3.1V to+5.5V supply with a dual charge pump. The partsreduce the transmitter output levels to RS-232-compatiblelevels with no increase in supply current for suppliesless than +3.1V and greater than +2.35V. The+2.35V to +5.5V operating range is fully compatiblewith lithium-ion (Li+) batteries. The charge pumprequires only four small 0.1µF capacitors for operation.The MAX3380E/MAX3381E transceivers use Maxim'srevolutionary AutoShutdown Plus™ feature to automaticallyenter a 1µA shutdown mode. Thesedevices shut down the on-board power supply anddrivers when they do not sense a valid signal transitionfor 30 seconds on either the receiver or transmitterinputs.The MAX3380E is capable of transmitting data atrates of 460kbps while maintaining RS-232 outputlevels, and the MAX3381E operates at data rates upto 250kbps. The MAX3381E offers a slower slew ratefor applications where noise and EMI are issues. TheMAX3380E/MAX3381E have a unique VL pin thatallows interoperation in mixed-logic voltage systemsdown to +1.65V. Both input and output logic levelsare referenced to the VL pin. The MAX3380E/MAX3381Eare available in a space-saving TSSOP package.ApplicationsCellular Data CablesDigital Still CamerasGPS ReceiversPDA Data Lump Cables

The MAX3380E/MAX3381E are +2.35V to +5.5V-poweredEIA/TIA-232 and V.28/V.24 communication interfaceswith low power requirements, high data-ratecapabilities, and enhanced electrostatic discharge(ESD) protection on both the TTL and RS-232 sides.The MAX3380E/MAX3381E have two receivers and twotransmitters. All RS-232 inputs, outputs, and logic inputpins are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge method and the Human Body Model, and ±8kV using IEC 1000-4-2 Contact Dischargemethod.The proprietary low-dropout transmitter output stageenables true RS-232 performance from a +3.1V to+5.5V supply with a dual charge pump. The partsreduce the transmitter output levels to RS-232-compatiblelevels with no increase in supply current for suppliesless than +3.1V and greater than +2.35V. The+2.35V to +5.5V operating range is fully compatiblewith lithium-ion (Li+) batteries. The charge pumprequires only four small 0.1µF capacitors for operation.The MAX3380E/MAX3381E transceivers use Maxim'srevolutionary AutoShutdown Plus™ feature to automaticallyenter a 1µA shutdown mode. Thesedevices shut down the on-board power supply anddrivers when they do not sense a valid signal transitionfor 30 seconds on either the receiver or transmitterinputs.The MAX3380E is capable of transmitting data atrates of 460kbps while maintaining RS-232 outputlevels, and the MAX3381E operates at data rates upto 250kbps. The MAX3381E offers a slower slew ratefor applications where noise and EMI are issues. TheMAX3380E/MAX3381E have a unique VL pin thatallows interoperation in mixed-logic voltage systemsdown to +1.65V. Both input and output logic levelsare referenced to the VL pin. The MAX3380E/MAX3381Eare available in a space-saving TSSOP package.ApplicationsCellular Data CablesDigital Still CamerasGPS ReceiversPDA Data Lump Cables

The MAX3380E/MAX3381E are +2.35V to +5.5V-poweredEIA/TIA-232 and V.28/V.24 communication interfaceswith low power requirements, high data-ratecapabilities, and enhanced electrostatic discharge(ESD) protection on both the TTL and RS-232 sides.The MAX3380E/MAX3381E have two receivers and twotransmitters. All RS-232 inputs, outputs, and logic inputpins are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge method and the Human Body Model, and ±8kV using IEC 1000-4-2 Contact Dischargemethod.The proprietary low-dropout transmitter output stageenables true RS-232 performance from a +3.1V to+5.5V supply with a dual charge pump. The partsreduce the transmitter output levels to RS-232-compatiblelevels with no increase in supply current for suppliesless than +3.1V and greater than +2.35V. The+2.35V to +5.5V operating range is fully compatiblewith lithium-ion (Li+) batteries. The charge pumprequires only four small 0.1µF capacitors for operation.The MAX3380E/MAX3381E transceivers use Maxim'srevolutionary AutoShutdown Plus™ feature to automaticallyenter a 1µA shutdown mode. Thesedevices shut down the on-board power supply anddrivers when they do not sense a valid signal transitionfor 30 seconds on either the receiver or transmitterinputs.The MAX3380E is capable of transmitting data atrates of 460kbps while maintaining RS-232 outputlevels, and the MAX3381E operates at data rates upto 250kbps. The MAX3381E offers a slower slew ratefor applications where noise and EMI are issues. TheMAX3380E/MAX3381E have a unique VL pin thatallows interoperation in mixed-logic voltage systemsdown to +1.65V. Both input and output logic levelsare referenced to the VL pin. The MAX3380E/MAX3381Eare available in a space-saving TSSOP package.ApplicationsCellular Data CablesDigital Still CamerasGPS ReceiversPDA Data Lump Cables

The MAX3460–MAX3464 are high-speed differential bus transceivers for RS-485 and RS-422 communications. They are designed to meet TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. The transceiver complies with the PROFIBUS specification providing +2.1V output level with a 54Ω load, 20Mbps data rate, and output skew less than 2ns. Each part contains one three-state differential line driver and one differential input line receiver. The devices operate from a +5V supply and feature true fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This enables all receiver outputs on a terminated bus to output logic highs when all transmitters are disabled. All devices feature a 1/4 standard unit load receiver input impedance that allows 128 transceivers on the bus. Driver and receiver propagation delays are guaranteed under 20ns for multidrop, clock distribution applications. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry. The driver and receiver feature active-high and active-low enables, respectively, that can be connected together externally to serve as a direction control.ApplicationsHigh-Speed RS-422 CommunicationsHigh-Speed RS-485 CommunicationsIndustrial Control Local Area NetworksLevel TranslatorsPROFIBUS Applications

The MAX3460–MAX3464 are high-speed differential bus transceivers for RS-485 and RS-422 communications. They are designed to meet TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. The transceiver complies with the PROFIBUS specification providing +2.1V output level with a 54Ω load, 20Mbps data rate, and output skew less than 2ns. Each part contains one three-state differential line driver and one differential input line receiver. The devices operate from a +5V supply and feature true fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This enables all receiver outputs on a terminated bus to output logic highs when all transmitters are disabled. All devices feature a 1/4 standard unit load receiver input impedance that allows 128 transceivers on the bus. Driver and receiver propagation delays are guaranteed under 20ns for multidrop, clock distribution applications. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry. The driver and receiver feature active-high and active-low enables, respectively, that can be connected together externally to serve as a direction control.ApplicationsHigh-Speed RS-422 CommunicationsHigh-Speed RS-485 CommunicationsIndustrial Control Local Area NetworksLevel TranslatorsPROFIBUS Applications

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB are complete, electrically isolated, RS-485/RS-422 data communications interface solutions in a hybrid microcircuit. The RS-485/RS-422 I/O pins are protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. Transceivers, optocouplers, and a transformer provide a complete interface in a standard DIP package. A single +5V supply on the logic side powers both sides of the interface.The MAX1480EC/MAX1490EB feature reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 160kbps. The MAX1480EA/MAX1490EA driver slew rate is not limited, allowing transmission rates up to 2.5Mbps. The MAX1480EA/MAX1480EC are designed for half-duplex communication, while the MAX1490EA/MAX1490EB feature full-duplex communication.Drivers are short-circuit current limited and protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a known output (RO low for the MAX1480EA/MAX1480EC, active-low RO high for the MAX1490EA/ MAX1490EB) if the input is open circuit.The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB withstand 1260VRMS (1min) or 1520VRMS (1s). Their isolated outputs meet all RS-485/RS-422 specifications. The MAX1480EA/MAX1480EC are available in a 28-pin DIP package, and the MAX1490EA/MAX1490EB are available in a 24-pin DIP package.ApplicationsAutomated Test Equipment (ATE)HVAC/Building Control NetworksIndustrial Control Local Area NetworksIsolated RS-485/RS-422 Data InterfaceTelecomTransceivers for EMI-Sensitive Applications

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB are complete, electrically isolated, RS-485/RS-422 data communications interface solutions in a hybrid microcircuit. The RS-485/RS-422 I/O pins are protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. Transceivers, optocouplers, and a transformer provide a complete interface in a standard DIP package. A single +5V supply on the logic side powers both sides of the interface.The MAX1480EC/MAX1490EB feature reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 160kbps. The MAX1480EA/MAX1490EA driver slew rate is not limited, allowing transmission rates up to 2.5Mbps. The MAX1480EA/MAX1480EC are designed for half-duplex communication, while the MAX1490EA/MAX1490EB feature full-duplex communication.Drivers are short-circuit current limited and protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a known output (RO low for the MAX1480EA/MAX1480EC, active-low RO high for the MAX1490EA/ MAX1490EB) if the input is open circuit.The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB withstand 1260VRMS (1min) or 1520VRMS (1s). Their isolated outputs meet all RS-485/RS-422 specifications. The MAX1480EA/MAX1480EC are available in a 28-pin DIP package, and the MAX1490EA/MAX1490EB are available in a 24-pin DIP package.ApplicationsAutomated Test Equipment (ATE)HVAC/Building Control NetworksIndustrial Control Local Area NetworksIsolated RS-485/RS-422 Data InterfaceTelecomTransceivers for EMI-Sensitive Applications

MAX200-MAX209, MAX211, and MAX213 are a family of RS-232 and V.28 transceivers with integrated charge pump circuitry for single +5V supply operation.The drivers maintain the ±5V EIA/TIA-232E output signal levels at data rates in excess of 120kbps when loaded in accordance with the EIA/TIA-232E specification.The MAX211 and MAX213 are available in a 28-pin, wide small-outline (SO) package and a 28-pin shrink small- outline (SSOP) package, which occupies only 40% of the area of the SO. The MAX207 is available in a 24-pin SO package and a 24-pin SSOP. The MAX203 and MAX205 use no external components and are recommended for applications with limited circuit board space.ApplicationsBattery-Powered EquipmentHandheld EquipmentPortable Diagnostics Equipment