EVALUATION KIT AVAILABLE 2 MAX7320 I C Port Expander with Eight Push-Pull Outputs General Description Benefits and Features 2 The MAX7320 2-wire serial-interfaced peripheral features 400kHz, +5.5V-Tolerant I C Serial Interface eight push-pull outputs with selectable power-up logic +1.71V to +5.5V Operating Voltage states. Eight Push-Pull Output Ports with Selectable Power- The +5.5V tolerant RST input clears the serial inter- Up Logic States 2 face, terminating any I C communication to or from the RST Clears the Serial Interface, Terminating Any MAX7320. Serial Transaction to or from the MAX7320 The MAX7320 uses two address inputs with four-level AD0 and AD2 Inputs Select from 16 Slave Addresses 2 logic to allow 16 I C slave addresses. The slave address also determines the power-up state level for the outputs Low 0.6A (typ) Standby Current in groups of four ports. -40C to +125C Temperature Range The MAX7320 supports hot insertion. The serial interface SDA, SCL, AD0, AD2, and RST remain high impedance in Ordering Information power-down (V+ = 0V) with up to +6V asserted on them. PIN- TOP The MAX7320 is one device in a family of pin-compatible PART TEMP RANGE PACKAGE MARK port expanders with a choice of input ports, open-drain I/O MAX7320AEE+ -40C to +125C 16 QSOP ports, and push-pull output ports (see Table 1). 16 TQFN The MAX7320 is available in 16-pin QSOP and 16-pin MAX7320ATE+ -40C to +125C 3mm x 3mm x ADB TQFN packages, and is specified over the automotive 0.8mm temperature range (-40C to +125C). +Denotes a lead(Pb)-free/RoHS-compliant package. Applications Cell Phones/PDAs RAID Pin Configurations, Typical Application Circuit, and Functional Diagram appear at end of data sheet. Satellite Radios Servers Notebooks Selector Guide PART INPUTS INTERRUPT MASK OPEN-DRAIN OUTPUTS PUSH-PULL OUTPUTS MAX7319 8 Yes MAX7320 8 MAX7321 Up to 8 Up to 8 MAX7322 4 Yes 4 MAX7323 Up to 4 Up to 4 4 MAX7328* Up to 8 Up to 8 MAX7329** *Second source to PCF8574. **Second source to PCF8574A. 19-3879 Rev 1 4/152 MAX7320 I C Port Expander with Eight Push-Pull Outputs Absolute Maximum Ratings (All voltages referenced to GND.) Continuous Power Dissipation (T = +70C) A Supply Voltage V+....................................................-0.3V to +6V 16-Pin QSOP (derate 8.3mW/C over +70C).............667mW SCL, SDA, AD0, AD2, RST.......................................-0.3V to +6V 16-Pin Thin QFN (derate 15.6mW/C over +70C)....1250mW O007.............................................................0.3V to (V+ + 0.3V) Operating Temperature Range...........................-40C to +125C 0007 Output Current .......................................................25mA Junction Temperature.......................................................+150C SDA Input Current.............................................................. 10mA Storage Temperature Range...............................-65C to +150C Total V+ Current..................................................................50mA Lead Temperature (soldering, 10s)...................................+300C Total GND Current ...........................................................100mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V+ = +1.71V to +5.5V, T = -40C to +125C, unless otherwise noted. Typical values are at V+ = +3.3V, T = +25C.) (Note 1) A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage V+ 1.71 5.50 V Power-On Reset Voltage V 1.6 V POR Standby Current Voltage I SCL and SDA and other digital inputs at V+ 0.6 1.5 A STB (Interface Idle) Supply Current (Interface I+ f = 400kHz other digital inputs at V+ 23 55 A SCL Running) V+ < 1.8V 0.8 x V+ Input High-Voltage V V IH SDA, SCL, AD0, AD2, RST V+ 1.8V 0.7 x V+ V+ < 1.8V 0.2 x V+ Input Low-Voltage V V IL SDA, SCL, AD0, AD2, RST V+ 1.8V 0.3 x V+ Input Leakage Current SDA, SCL, AD0, AD2, RST, O0O7 at V+ I , I -0.2 +0.2 A IH IL SDA, SCL, AD0, AD2, RST or GND Input Capacitance 10 pF SDA, SCL, AD0, AD2, RST V+ = +1.71V, I = 1mA 120 240 SINK V+ = +2.5V, I = 2mA 140 280 SINK Output Low Voltage V mV OL O0O7 V+ = +3.3V, I = 3mA 170 310 SINK V+ = +5V, I = 5mA 220 380 SINK V+ = +1.71V, I = 1mA V+ - 250 V+ - 130 SOURCE V+ = +2.5V, I = 2mA V+ - 350 V+ - 200 Output High Voltage SOURCE V mV OH O0O7 V+ = +3.3V, I = 3mA V+ - 290 V+ - 150 SOURCE V+ = +5V, I = 5mA V+ - 380 V+ - 230 SOURCE Output Low Voltage SDA V I = 6mA 250 mV OLSDA SINK Maxim Integrated 2 www.maximintegrated.com