CDP68HC68T1M96

Overview

The CDP68HC68T1M96 is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides timekeeping and calendar functions via a 3-wire Serial Peripheral Interface (SPI). The device includes 32 bytes of static RAM for data storage. It supports power supply voltages from 3V to 6V, with battery backup operation down to 2.2V. Key features include automatic leap year correction, selectable 12/24-hour formats, and multiple interrupt modes such as alarm and periodic interrupts. The component is housed in a 20-SOIC package.

Feature Summary

• Integrated SPI interface for serial communication
• 32-byte static RAM included
• Automatic leap year calculation
• Supports 12/24 hour time formats

Applications

• Embedded systems requiring precise timekeeping
• Data logging equipment
• Industrial control systems

Procurement Notes

This component is listed as obsolete or end-of-life. Verification of current availability through authorized distributors is required. Check for alternative sources or replacement parts if immediate procurement is necessary.

Selection Notes

Select this part for applications requiring an SPI-connected RTC with onboard memory. Ensure the system voltage aligns with the 3V-6V operating range. Verify that the 20-SOIC package fits the PCB layout constraints.

Part Context

The CDP68HC68 series is designed for real-time clock applications. The T1 suffix indicates specific packaging and feature sets compatible with standard SPI interfaces. This model belongs to the broader family of Renesas timing and calendar ICs.

Replacement Considerations

Due to the obsolete status, verify functional equivalents with similar SPI interfaces and pinouts. Consult manufacturer documentation for cross-reference recommendations.