Professional IC Distribution & Technical Solutions

The DS1388Z-33+T&R is a real-time clock (RTC) module manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

Specifications:

• Part Number: DS1388Z-33+T&R
• Manufacturer: Maxim Integrated
• Type: Real-Time Clock (RTC)
• Supply Voltage: 3.3V
• Interface: I²C (2-wire serial)
• Timekeeping Accuracy: ±2ppm (±0.1728 seconds/day)
• Operating Temperature Range: -40°C to +85°C
• Package: 8-pin SOIC (150mil)
• Memory: 32 bytes of battery-backed SRAM
• Battery Backup Support: Yes (for timekeeping during power loss)
• Clock Frequency: 32.768kHz (crystal-controlled)
• Alarms: Two programmable time-of-day alarms
• Watchdog Timer: Yes
• Power Consumption: Low power (typically 400nA in battery backup mode)

Descriptions:

• The DS1388Z-33+T&R is a highly accurate RTC module with an integrated crystal oscillator, designed for embedded systems requiring precise timekeeping.
• It includes battery-backed SRAM for data retention during power loss.
• The I²C interface allows easy integration with microcontrollers.
• It supports two programmable alarms and a watchdog timer for system monitoring.

Features:

• Low Power Consumption: Optimized for battery-backed applications.
• Battery Backup: Maintains timekeeping and SRAM data during power interruptions.
• High Accuracy: ±2ppm timekeeping precision.
• I²C Interface: Simple serial communication with host systems.
• Programmable Alarms: Two independent alarms for event scheduling.
• Watchdog Timer: Enhances system reliability by resetting the host if needed.
• Industrial Temperature Range: Suitable for harsh environments.

This RTC is commonly used in industrial, automotive, and consumer electronics applications where reliable timekeeping is critical.