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MAX7359ETG+ Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX7359ETG+ Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 20 page 2-Wire Interfaced Low-EMI Key Switch Controller/GPO 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS 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. (All voltages referenced to GND.) VCC ..........................................................................-0.3V to +4V COL2/PORT2–COL7/PORT7 ....................................-0.3V to +4V SDA, SCL, AD0, INT .................................................-0.3V to +6V All Other Pins ..............................................-0.3V to (VCC + 0.3V) DC Current on COL2/PORT2–COL7/PORT7 ......................25mA GND Current .......................................................................80mA Continuous Power Dissipation (TA = +70°C) 24-Pin TQFN (derate 15.4mW/°C above +70°C)..........1229mW Operating Temperature Range (TMIN to TMAX) .....-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C ELECTRICAL CHARACTERISTICS (VCC = 1.62V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 2.5V, TA = +25°C.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage VCC 1.62 3.60 V All key switches open, oscillator running, COL2–COL7 configured as key switches 25 60 Operating Supply Current ICC N keys pressed (25 + 20 x N) µA Sleep-Mode Supply Current ISL 0.6 5 µA POR 1.0 1.6 V POR Hysteresis PORHYST VCC rising 42 mV Key-Switch Source Current IKEY 20 35 µA Key-Switch Source Voltage VKEY Operating mode 0.42 0.55 V Key-Switch Resistance RKEY (Note 3) 5 k Ω Startup Time from Shutdown tSTART 2 2.4 ms Output Low Voltage COL2/PORT2 to COL7/PORT7 VOLPORT ISINK = 10mA 0.2 V INT Output VOLINT ISINK = 10mA 0.5 V Oscillator Frequency FOSC 64 kHz SERIAL-INTERFACE SPECIFICATIONS Serial Bus Timeout tOUT With bus timeout enabled 10 40 ms Input High Voltage SDA, SCL, AD0 VIH 0.7 x VCC V Input Low Voltage SDA, SCL, AD0 VIL 0.3 x VCC V Output Low Voltage SDA VOLPORT ISINK = 10mA 0.4 V Input Leakage Current VCC = 0 to 6V -1 +1 µA |
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