Electronic Components Datasheet Search |
|
DS3231M Datasheet(PDF) 7 Page - Maxim Integrated Products |
|
DS3231M Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 20 page ±5ppm, I2C Real-Time Clock 7 Maxim Integrated DS3231M Pin Configuration Pin Description 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 32KHZ SCL SDA VBAT GND N.C. N.C. N.C. N.C. TOP VIEW SO VCC INT/SQW N.C. RST N.C. N.C. N.C. DS3231M DS3231M + VBAT GND RST 1 2 8 7 SCL SDA VCC INT/SQW 32KHZ SO TOP VIEW 3 4 6 5 + PIN NAME FUNCTION 8 SO 16 SO 1 1 32KHZ 32.768kHz Output (50% Duty Cycle). This open-drain pin requires an external pullup resistor. When enabled with the EN32KHZ bit in the Status register (0Fh), this output operates on either power supply. This pin can be left open circuit if not used. 2 2 VCC DC Power Pin for Primary Power Supply. This pin should be decoupled using a 0.1FF to 1.0FF capacitor. Connect to ground if not used. 3 3 INT/ SQW Active-Low Interrupt or 1Hz Square-Wave Output. This open-drain pin requires an external pullup resistor connected to a supply at 5.5V or less. It can be left open if not used. This multifunction pin is determined by the state of the INTCN bit in the Control register (0Eh). When INTCN is set to logic 0, this pin outputs a 1Hz square wave. When INTCN is set to logic 1, a match between the timekeeping registers and either of the alarm registers activates the INT/SQW pin (if the alarm is enabled). Because the INTCN bit is set to logic 1 when power is first applied, the pin defaults to an interrupt output with alarms disabled. 4 4 RST Active-Low Reset. This pin is an open-drain input/output. It indicates the status of VCC relative to the VPF specification. As VCC falls below VPF, the RST pin is driven low. When VCC exceeds VPF, for tRST, the RST pin is pulled high by the internal pullup resistor. The active-low, open-drain output is combined with a debounced pushbutton input function. This pin can be activated by a pushbutton reset request. It has an internal 50kI (RPU) nominal value pullup resistor to VCC. No external pullup resistors should be connected. If the oscillator is disabled, tREC is bypassed and RST immediately goes high. — 5–12 N.C. No Connection. These pins must be connected to ground. 5 13 GND Ground 6 14 VBAT Backup Power-Supply Input. When using the device with the VBAT input as the primary power source, this pin should be decoupled using a 0.1FF to 1.0FF low-leakage capacitor. When using the device with the VBAT input as the backup power source, the capacitor is not required. If VBAT is not used, connect to ground. The device is UL recognized to ensure against reverse charging when used with a primary lithium battery. Go to www.maximintegrated.com/qa/info/ul for more information. |
Similar Part No. - DS3231M_12 |
|
Similar Description - DS3231M_12 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |