Part # MAX7326 datasheet

Part Manufacturer: Maxim


Part Description: MAX7326 DS

Part Details:

19-3804; Rev 0; 10/06 EVALUATION KIT AVAILABLE I2C Port Expander with 12 Push-Pull Outputs and 4 Inputs MAX7326 General Description Features The MAX7326 2-wire serial-interfaced peripheral fea- 400kHz I2C Serial Interface tures 16 I/O ports. The ports are divided into 12 push- +1.71V to +5.5V Operating Voltage pull outputs and four input ports with selectable internalpullups. Input ports are overvoltage protected to +6V 12 Push-Pull Outputs Rated at 20mA Sink Current and feature transition detection with interrupt output. 4 Input Ports with Matchable Latching Transition The four input ports are continuously monitored for Detection state changes (transition detection). The interrupt is Input Ports are Overvoltage Protected to +6V latched, allowing detection of transient changes. Any Transient Changes are Latched, Allowing combination of inputs can be selected using the inter- Detection Between Read Operations rupt mask to assert the open-drain, +6V-tolerant INToutput. When the MAX7326 is subsequently accessed INT Output Alerts Change on Any Selection of through the serial interface, any pending interrupt is Inputs cleared. The 12 push-pull outputs are rated to sink AD0 and AD2 Inputs Select from 16 Slave 20mA and are capable of driving LEDs. The RST input Addresses clears the serial interace, terminating any I2C communi- Low 0.6µA Standby Current cation to or from the MAX7326. -40°C to +125°C Temperature Range The MAX7326 uses two address inputs with four-levellogic to allow 16 I2C slave addresses. The slaveaddress also sets the power-up default state for the 12output ports and enables or disables internal 40kpullups in groups of two input ports. Ordering Information The MAX7326 is one device in a family of pin-compatibleport expanders with a choice of input ports, open-drain PIN- PKG I/O ports, and push-pull output ports (see Table 1). PART TEMP RANGE PACKAGE CODE The MAX7326 is available in 24-pin QSOP and TQFN MAX7326AEG+ -40°C to +125°C 24 QSOP E24-1 packages and is specified over the -40°C to +125°Cautomotive temperature range. 24 TQFN-EP* MAX7326ATG+ -40°C to +125°C

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MAX7326.pdf Datasheet