Description
The HW-111 real-time clock (RTC) IC has an I2C interface and has 8 pins. The HW-111 (DS1307) is a low-power clock/calendar with a battery backup SRAM of 56 bytes. The clock/calendar displays qualified data in seconds, minutes, hours, days, dates, months, and years. Each month's end date is automatically adjusted, especially for months with fewer than 31 days.
Features:
- DS1307-based RTC Module.
- 1Hz output pin.
- Consumes less than 500nA in battery backup mode with oscillator running
- Underwriters Laboratory (UL) recognized
- Real-time clock (RTC) counts seconds, minutes, hours, dates of the month, month, day of the week, and year with leap-year compensation valid up to 2100
- 56-byte non-volatile RAM for data storage
- 56 Bytes of Non-volatile memory available to the user.
- The DS1307 is accessed via the I2C protocol.
- The module comes fully assembled and pre-programmed with the current time.
Specification
| Model | (DS1307) HW-111 |
| Type | I2C RTC Module |
| Battery | CR2032 Lithium Battery |
| Battery Included | Yes |
| Total No. of Pins | 12 |
| Size (L*W*D) (mm) | 28*27*6.4 (mm) |
| Country of Origin | China |