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MAX7321AEE Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX7321AEE Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 17 page I2C Port Expander with 8 Open-Drain I/Os 4 _______________________________________________________________________________________ Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) 0 0.4 0.2 1.0 0.8 0.6 1.2 1.4 1.8 1.6 2.0 -40 -10 5 -25 20 35 50 65 80 95 110 125 STANDBY CURRENT vs. TEMPERATURE TEMPERATURE ( °C) V+ = +3.3V V+ = +2.5V V+ = +5.0V V+ = +1.71V fSCL = 0kHz 0 20 10 40 30 50 60 -40 -10 5 20 -25 35 50 65 80 95 110 125 SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE ( °C) V+ = +3.3V V+ = +5.0V V+ = +1.71V V+ = +2.5V fSCL = 400kHz OUTPUT VOLTAGE LOW vs. TEMPERATURE TEMPERATURE ( °C) -40 -25 -10 5 20 35 50 65 80 95 110 125 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 V+ = +5.0V ISINK = 20mA V+ = +2.5V ISINK = 10mA V+ = +1.71V ISINK = 5mA V+ = +3.3V ISINK = 15mA Pin Description PIN QSOP TQFN TSSOP/ SSOP NAME FUNCTION 1, 3 15, 1 6, 9 AD0, AD2 Address Inputs. Select device slave address with AD0 and AD2. Connect AD0 and AD2 to either GND, V+, SCL, or SDA to give four logic combinations (see Table 3). 2 16 7 RST Reset Input, Active Low. Drive RST low to clear the 2-wire interface. 4–7, 9–12 2–5, 7–10 10, 11, 12, 14, 16, 17, 19, 20 P0–P7 Input/Output Ports. P0 to P7 are open-drain I/Os rated at +6V, 20mA. 86 15 GND Ground 13 11 1 INT Interrupt Output. INT is an open-drain output rated at +6V. 14 12 2 SCL I2C-Compatible Serial Clock Input 15 13 4 SDA I2C-Compatible Serial Data I/O 16 14 5 V+ Positive Supply Voltage. Bypass V+ to GND with a ceramic capacitor of at — — 3,18 N.C. No Connection. Internally not connected. — EP —EP Exposed Pad. Connect exposed pad to GND. |
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