Overview
The DS1307ZN+ is a real-time clock (RTC) integrated circuit produced by Analog Devices Inc./Maxim Integrated. This device is designed to provide accurate time and date information, along with additional features such as non-volatile RAM and a programmable square wave output. The DS1307ZN+ operates in a low-power mode, making it suitable for battery-backed applications. It is available in an 8-pin SOIC package and supports an industrial temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Voltage (VCC) | Supply voltage range | 2.3 | - | 5.5 | V |
| Operating Temperature | Temperature range for operation | -40 | - | +85 | °C |
| Standby Current | Current consumption in standby mode | - | 50 | - | nA |
| Active Current | Current consumption during active operation | - | 300 | - | μA |
| Clock Accuracy | Accuracy at 25°C, 3.3V | - | ±2 | - | ppm |
| Square Wave Output Frequency | Frequency options for square wave output | 1 | - | 32768 | Hz |
| I2C Bus Speed | Maximum I2C bus speed | - | - | 400 | kHz |
| RAM Size | Size of non-volatile RAM | - | - | 56 | bytes |
Key Features
- Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100.
- 56-byte, battery-backed, nonvolatile (NV) RAM for data storage.
- Two-wire serial interface (I2C) for communication.
- Programmable squarewave output signal.
- Automatic power-fail detect and switch circuitry.
- Consumes less than 500nA in battery backup mode with oscillator running.
- Optional industrial temperature range: -40°C to +85°C.
- Available in 8-pin SOIC package.
- Underwriters Laboratory (UL) recognized.
Applications
- Embedded systems requiring accurate time and date information.
- Battery-backed data logging and storage applications.
- Industrial control systems.
- Consumer electronics such as clocks, timers, and calendar devices.
- Medical devices and equipment.
- Automotive systems requiring real-time clock functionality.
Q & A
- What is the primary function of the DS1307ZN+?
The primary function of the DS1307ZN+ is to provide a real-time clock (RTC) that counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation.
- What is the operating voltage range of the DS1307ZN+?
The operating voltage range of the DS1307ZN+ is from 2.3V to 5.5V.
- What is the temperature range for the DS1307ZN+?
The DS1307ZN+ operates within a temperature range of -40°C to +85°C.
- How much current does the DS1307ZN+ consume in standby mode?
The DS1307ZN+ consumes less than 50nA in standby mode.
- What is the maximum I2C bus speed for the DS1307ZN+?
The maximum I2C bus speed for the DS1307ZN+ is 400kHz.
- How much non-volatile RAM does the DS1307ZN+ have?
The DS1307ZN+ has 56 bytes of non-volatile RAM.
- What is the purpose of the square wave output on the DS1307ZN+?
The square wave output on the DS1307ZN+ can be programmed to various frequencies and is useful for generating timing signals.
- Is the DS1307ZN+ UL recognized?
Yes, the DS1307ZN+ is Underwriters Laboratory (UL) recognized.
- What package types are available for the DS1307ZN+?
The DS1307ZN+ is available in an 8-pin SOIC package.
- How accurate is the clock in the DS1307ZN+?
The clock accuracy of the DS1307ZN+ is ±2 ppm at 25°C and 3.3V.
