HX1302-S

The HX1302-S/HX1302-P trickle-charge timekeeping chip is equipped with a real-time clock/calendar system and 31 bytes of static RAM, facilitating seamless communication with a microprocessor through a straightforward serial interface. This interface provides comprehensive information, encompassing seconds, minutes, hours, day, date, month, and year. The chip automatically adjusts for the varying number of days in each month, including leap-year corrections, ensuring accurate timekeeping. Moreover, the HX1302-S/HX1302-P offers flexibility in its time display format, operating in either 24-hour or 12-hour mode with an AM/PM indicator. Communication with the HX1302-S/HX1302-P is straightforward, leveraging synchronous serial communication. Merely three wires - CE, I/O (data line), and SCLK (serial clock) - are required for seamless data exchange between the clock/RAM. Data transmission can occur either in single-byte increments or in bursts of up to 31 bytes. The HX1302-S/HX1302-P is designed to conserve power, maintaining data and clock information on minimal power consumption of less than 1μν. The HX1302-S/HX1302-P builds upon its predecessor's fundamental timekeeping capabilities. It introduces added features such as dual power pins for both primary and backup power sources, a programmable trickle charger for VCC1, and an expanded seven-byte scratchpad memory.

Key features

• Complete Management of All Timekeeping Functions
• Real-Time Clock Capable of Counting Seconds, Minutes, Hours, Date, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Through 2100
• 31×8 Battery-Backed RAM for General-Purpose Use
• Simplified Serial Port Connectivity with Most Microcontrollers
• Simple 3-Wire Interface for Easy Integration
• TTL-Compatible (VCC = 5V) for Seamless Communication
• Flexible Data Transfer Options: Single-Byte or Multiple-Byte (Burst Mode) for Clock or RAM Data Read/Write
• Efficient Low-Power Operation Ensures Extended Battery Backup Time
• Full Operation within a Wide Voltage Range of 2.0V to 5.5V
• Ultra-Low Power Consumption, Less Than 300nA at 2.0V
• Compact Footprint with 8-Pin DIP and 8-Pin SO Packages
• Minimizes the Required Space for Easy Integration into Various Applications
• Optional Industrial Temperature Range: -40°C to +85°C
• Supports Operation in a Wide Range of Environments, Ensuring Reliable Performance
• Recognition by Underwriters Laboratories (UL)
• Ensures Compliance with Safety Standards for Reliable and Safe Operation