DS1672-2+ Real Time Clock IC Equivalent & Substitute Parts

Part Overview

The DS1672-2+ is a Real Time Clock (RTC) IC Binary Counter with I2C 2-Wire Serial interface manufactured by Analog Devices Inc./Maxim Integrated. This through-hole 8-DIP package device provides timekeeping functionality with trickle-charger capability and operates across industrial temperature ranges. The product is currently classified as obsolete, making identification of equivalent and substitute parts essential for legacy system maintenance, repair, and redesign applications.

Substiute Parts

DS1672-2+

Analog Devices Inc./Maxim IntegratedIn Stock: 1141DS1672-2+ Datasheet

Current PartRFQ

DS1672-2+

Analog Devices Inc./Maxim IntegratedIn Stock: 1141DS1672-2+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DS1672-2+ is determined by strict alignment with the following critical parameters:

• Interface Protocol: I2C, 2-Wire Serial communication
• Time and Date Format: Binary representation
• Functional Type: Binary Counter RTC
• Package Configuration: 8-DIP (0.300", 7.62mm) through-hole mounting
• Voltage Specifications: Supply range 1.8V ~ 2.2V; Battery backup 1.3V ~ 3.63V
• Operating Temperature Range: -40°C ~ 85°C
• Features: Trickle-charger capability
• Compliance: ROHS3 Compliant

Only components meeting all these parameters qualify as direct substitutes. The DS1672-2+ itself represents the complete substitute list based on the provided data.

Parameter Comparison

Engineering Selection Recommendations

The DS1672-2+ is classified as obsolete. Component selection for legacy system applications must prioritize:

• Compliance Verification: Confirm ROHS3 compliance status for all candidate parts
• Inventory Availability: Current stock of 1039 pieces is available for immediate procurement
• Moisture Sensitivity: MSL rating of 1 (Unlimited) indicates no special storage or handling requirements
• Product Status Consideration: Obsolete classification requires confirmation of long-term availability and supply chain continuity

Direct equivalents must maintain identical electrical specifications, package configuration, and interface protocol to ensure drop-in compatibility without circuit redesign.

Frequently Asked Questions (FAQ)

Q: What makes a part a valid substitute for the DS1672-2+?

A: A valid substitute must match all critical parameters: I2C 2-Wire Serial interface, binary time and date format, 8-DIP through-hole package, supply voltage 1.8V ~ 2.2V, battery voltage 1.3V ~ 3.63V, operating temperature -40°C ~ 85°C, and trickle-charger feature. Any deviation in these parameters disqualifies the part as a direct substitute.

Q: Can I use a different package type as a substitute?

A: No. The 8-DIP (0.300", 7.62mm) through-hole package is a critical mechanical specification. Different package types require circuit board redesign and are not considered direct substitutes.

Q: Is the DS1672-2+ still in production?

A: No. The DS1672-2+ is classified as obsolete. Procurement must be sourced from existing inventory or authorized distributors holding stock.

Q: What is the significance of the ROHS3 compliance rating?

A: ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, ensuring environmental and regulatory compliance for applications subject to these standards.

Q: Does the MSL rating affect storage or handling?

A: No. The MSL rating of 1 (Unlimited) indicates unlimited shelf life without special moisture control measures, simplifying inventory management and procurement logistics.