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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ISL12022M Fiches technique(PDF) 2 Page - Renesas Technology Corp |
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ISL12022M Fiches technique(HTML) 2 Page - Renesas Technology Corp |
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2 / 32 page  ISL12022M FN6668 Rev 9.00 Page 2 of 32 June 20, 2012 Block Diagram Pin Configuration ISL12022M (20 LD SOIC) TOP VIEW I2C INTERFACE CONTROL LOGIC ALARM FREQUENCY OUT RTC DIVIDER SDA BUFFER CRYSTAL OSCILLATOR POR SWITCH SCL BUFFER SDA SCL VDD VBAT INTERNAL SUPPLY VTRIP SECONDS MINUTES HOURS DAY OF WEEK DATE MONTH YEAR USER SRAM CONTROL REGISTERS GND REGISTERS TEMPERATURE SENSOR FREQUENCY CONTROL IRQ/FOUT + - NC NC NC GND NC NC 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 NC NC GND VDD NC NC GND VBAT NC NC NC IRQ/FOUT SCL SDA Pin Descriptions PIN NUMBER SYMBOL DESCRIPTION 1, 2, 3, 4, 5, 9, 10, 16, 17, 18, 19, 20 NC No Connection. Do not connect to a signal or supply voltage. 7VBAT Backup Supply. This input provides a backup supply voltage to the device. VBAT supplies power to the device in the event that the VDD supply fails. This pin can be connected to a battery, a supercapacitor or tied to ground if not used. See the Battery Monitor parameter in “DC Operating Characteristics RTC” on page 6. This pin should be tied to ground if not used. 11 SDA Serial Data. SDA is a bi-directional pin used to transfer data into and out of the device. It has an open drain output and may be OR’ed with other open drain or open collector outputs. The input buffer is always active (not gated) in normal mode. An open drain output requires the use of a pull-up resistor. The output circuitry controls the fall time of the output signal with the use of a slope controlled pull-down. The circuit is designed for 400kHz I2C interface speeds. It is disabled when the backup power supply on the VBAT pin is activated. |
Numéro de pièce similaire - ISL12022M |
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Description similaire - ISL12022M |
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