DS1682S Equivalent & Substitute Parts

Part Overview

The DS1682S is a Real Time Clock (RTC) IC Elapsed Time Counter manufactured by Analog Devices Inc./Maxim Integrated. This 10-bit I2C-based timing device provides elapsed time counting functionality with integrated alarm and EEPROM features in an 8-SOIC surface mount package. The DS1682S is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The availability of active product variants ensures continued access to functionally equivalent solutions.

Substiute Parts

DS1682S

Analog Devices Inc./Maxim IntegratedIn Stock: 2305DS1682S Datasheet

Current PartRFQ

DS1682S+

Analog Devices Inc./Maxim IntegratedIn Stock: 1683DS1682S+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1682S is determined by strict equivalence across the following critical parameters:

• Functional Type: Elapsed Time Counter with identical 10-bit memory architecture
• Interface Protocol: I2C, 2-Wire Serial communication standard
• Electrical Specifications: Supply voltage range 2.5V ~ 5.5V and timekeeping current specifications 4µA ~ 15µA @ 3V ~ 5.5V
• Package Compatibility: 8-SOIC (0.154", 3.90mm Width) surface mount form factor
• Feature Set: Integrated alarm and EEPROM functionality
• Operating Temperature Range: -40°C ~ 85°C

The DS1682S+ qualifies as a direct substitute based on complete alignment with all specified electrical, mechanical, and functional parameters. The primary distinction is product status and compliance certification, not functional capability.

Parameter Comparison

Engineering Selection Recommendations

The DS1682S+ is the direct functional equivalent of the DS1682S. Selection between these parts is determined by compliance and product lifecycle requirements:

DS1682S+ is the preferred choice for new designs and ongoing production due to active product status and ROHS3 compliance certification. This variant ensures long-term availability and meets current environmental regulatory requirements.

DS1682S remains suitable for legacy system maintenance and repair applications where existing inventory is available. However, the obsolete status indicates limited future availability.

Both parts maintain identical electrical performance, interface characteristics, and package specifications, ensuring pin-for-pin and functional compatibility in all application contexts.

Frequently Asked Questions (FAQ)

Q: Are DS1682S and DS1682S+ pin-compatible? A: Yes. Both parts use the 8-SOIC (0.154", 3.90mm Width) package with identical pinout and electrical interface specifications.

Q: Can DS1682S+ replace DS1682S in existing designs? A: Yes. The DS1682S+ provides complete functional equivalence with identical I2C interface, supply voltage range, timekeeping current specifications, and operating temperature range. No circuit modifications are required.

Q: What is the primary difference between these parts? A: The DS1682S+ is an active product with ROHS3 compliance, while the DS1682S is obsolete and RoHS non-compliant. Functional and electrical specifications are identical.

Q: Are there packaging differences? A: The DS1682S+ is supplied in tube packaging, while the DS1682S uses standard packaging. This affects handling and storage but does not impact electrical performance or compatibility.

Q: Which part should be specified for new designs? A: DS1682S+ is the appropriate choice for new designs due to active product status and regulatory compliance certification.

Q: Is the 10-bit memory architecture identical between both parts? A: Yes. Both parts implement 10-bit elapsed time counter memory with identical EEPROM and alarm functionality.