Overview
The DS1302ZN+ is a trickle-charge timekeeping chip produced by Analog Devices Inc./Maxim Integrated. This component integrates a real-time clock/calendar and 31 bytes of static RAM, making it a versatile solution for various timekeeping and data storage needs. It is designed to communicate with microprocessors via a simple 3-wire serial interface, ensuring ease of integration into a wide range of applications.
Key Specifications
| Specification | Details |
|---|---|
| Package Type | Small-Outline IC (SO8), Narrow (0.15in) |
| Operating Voltage | 2.0V to 5.5V |
| Power Consumption | Less than 300nA at 2.0V |
| Temperature Range | -40°C to +85°C (optional industrial temperature range) |
| RAM Capacity | 31 bytes of battery-backed general-purpose RAM |
| Timekeeping Functions | Seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100 |
| Interface | Simple 3-wire serial interface (CE, I/O, SCLK) |
| Data Transfer Mode | Single-byte or multiple-byte (burst mode) data transfer |
Key Features
- Completely manages all timekeeping functions, including seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100.
- 31 bytes of battery-backed general-purpose RAM.
- Simple 3-wire serial interface for communication with microprocessors.
- Low power operation extends battery backup run time.
- Operates in either the 24-hour or 12-hour format with an AM/PM indicator.
- Dual power pins for primary and backup power supplies.
- Programmable trickle charger for VCC1.
Applications
The DS1302ZN+ is suitable for a variety of applications where accurate timekeeping and data storage are essential. These include:
- Embedded systems requiring real-time clock functionality.
- Industrial control systems.
- Consumer electronics such as clocks, timers, and alarm systems.
- Automotive systems.
- Medical devices.
Q & A
- What is the primary function of the DS1302ZN+?
The primary function of the DS1302ZN+ is to provide real-time clock/calendar and 31 bytes of static RAM for data storage. - How does the DS1302ZN+ communicate with microprocessors?
The DS1302ZN+ communicates with microprocessors via a simple 3-wire serial interface. - What is the operating voltage range of the DS1302ZN+?
The operating voltage range is from 2.0V to 5.5V. - How much power does the DS1302ZN+ consume?
The DS1302ZN+ consumes less than 300nA at 2.0V. - What is the temperature range for the DS1302ZN+?
The temperature range is -40°C to +85°C (optional industrial temperature range). - Does the DS1302ZN+ support leap-year compensation?
Yes, it supports leap-year compensation valid up to 2100. - What types of data can be stored in the DS1302ZN+ RAM?
The DS1302ZN+ has 31 bytes of battery-backed general-purpose RAM for storing various types of data. - Can the DS1302ZN+ operate in both 24-hour and 12-hour formats?
Yes, it can operate in either the 24-hour or 12-hour format with an AM/PM indicator. - What are some common applications of the DS1302ZN+?
Common applications include embedded systems, industrial control systems, consumer electronics, automotive systems, and medical devices. - Is the DS1302ZN+ UL recognized?
Yes, the DS1302ZN+ is Underwriters Laboratories (UL) recognized.
