The MAX3311/MAX3313 are low-power, +5V EIA/TIA-232-compatible transceivers. Both devices have one transmitter and one receiver. The transceivers have a proprietary low-dropout transmitter output stage enabling RS-232-compatible operation from a +5V supply with a single inverting charge pump. These devices require only three 0.1µF capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels.The MAX3311 features a 1µA shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled. The MAX3313 features an active-low INVALID output that asserts high when an active RS-232 cable signal is connected, signaling to the host that a peripheral is connected to the communication port.ApplicationsCell PhonesDigital Still CamerasDigital Television (Receivers, Set-Top Boxes)Global Positioning Systems (GPS)ModemsPagersPen Entry PalmtopsPoint-of-Sale Terminals

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 MAX7310 provides 8-bit parallel input/output port expansion for SMBus™-compatible and I²C-compatible applications. The MAX7310 consists of an input port register, an output port register, a polarity inversion register, a configuration register, a bus timeout register, and an SMBus/I²C-compatible serial interface. The system master can invert the MAX7310 input data by writing to the active-high polarity inversion register. The system master can enable or disable bus timeout by writing to the bus timeout register.Any of the eight I/O ports can be configured as input or output. An active-low reset input sets the eight I/Os as inputs. Three address-select pins configure one of 56 slave ID addresses.The MAX7310 is available in 16-pin thin QFN, TSSOP, and QSOP packages and is specified over the -40°C to +125°C automotive temperature range.ApplicationsCellular HandsetsDesktop Computers: MotherboardsGPIOIndustrial ControlIndustrial DisplaysInstrumentation and Test MeasurementMedical EquipmentRAID SystemsServersWhite LED Drivers

The MAX7314 I²C-compatible serial interfaced peripheral provides microprocessors with 16 I/O ports plus one output-only port and one input-only port. Each I/O port can be individually configured as either an open-draincurrent-sinking output rated at 50mA and 5.5V, or a logic input with transition detection. The output-only port can be assigned as an interrupt output for transition detection. The outputs are capable of driving LEDs, or providinglogic outputs with external resistive pullup up to 5.5V.Eight-bit PWM current control is built in for all 17 output ports. A 4-bit global control applies to all LED outputs and provides coarse adjustment of current from fully off to fully on with 14 intensity steps in between. Each output has an individual 4-bit control, which further divides the globally set current into 16 more steps. Alternatively, the current control can be configured as a single 8-bit control that sets all outputs at once.Each output has independent blink timing with two blink phases. All LEDs can be individually set to be on or off during either blink phase, or to ignore the blink control. The blink period is controlled by a clock input (up to 1kHz)on BLINK or by a register. The BLINK input can also be used as a logic control to turn the LEDs on and off, or as a general-purpose input.The MAX7314 supports hot insertion. All port pins, the active-low INT output, SDA, SCL, active-low RST, BLINK, and the slave address input ADO remain high impedance in powerdown (V+ = 0V) with up to 6V asserted upon them. The MAX7314 is controlled through a 2-wire serial interface, and uses four-level logic to allow four I²C addresses from only one select pin.ApplicationsKeypad BacklightsLCD BacklightsLED Status IndicationRelay DriversRGB LED DriversSystem I/O Ports