CPC7691BA Equivalent & Substitute Parts

Part Overview

The CPC7691BA is a telecom interface IC designed for line card access switching applications. Manufactured by IXYS Integrated Circuits Division, this component operates as a TTL interface device with a single circuit configuration. The product is currently classified as obsolete, making identification of compatible substitute parts essential for system maintenance, legacy design support, and component procurement planning.

Substiute Parts

CPC7691BA

IXYS Integrated Circuits DivisionIn Stock: 855CPC7691BA Datasheet

Current PartRFQ

CPC7695BC

IXYS Integrated Circuits DivisionIn Stock: 763CPC7695BC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CPC7691BA is determined by the following critical parameters:

• Functional equivalence: Line card access switch operation with TTL interface
• Electrical compatibility: Voltage supply range 4.5V ~ 5.5V, supply current 2mA, power consumption 10.5 mW
• Operating environment: Temperature range -40°C ~ 110°C
• Circuit configuration: Single circuit design
• Compliance standards: ROHS3 compliance, REACH unaffected status
• Mounting technology: Surface mount configuration

The CPC7695BC qualifies as a substitute based on matching electrical specifications, functional purpose, interface type, and compliance certifications. The primary difference is the package configuration: CPC7695BC uses a 28-SOIC package compared to the 16-SOIC package of the CPC7691BA. This package difference requires PCB layout modification but does not affect electrical or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CPC7695BC is the manufacturer-recommended substitute for the obsolete CPC7691BA. Both components maintain identical electrical specifications, functional operation, and compliance certifications. The CPC7695BC carries active product status, ensuring ongoing availability and supply chain continuity.

The transition from 16-SOIC to 28-SOIC packaging requires PCB layout modification. Pin assignment and signal routing must be verified against component datasheets to ensure correct circuit implementation. Both packages maintain the same 0.295" width and 7.50mm body dimension, facilitating footprint adaptation.

ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) are maintained in the substitute part, supporting environmental and reliability requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can CPC7695BC directly replace CPC7691BA without PCB modification?

A: No. While electrical and functional specifications are identical, the package change from 16-SOIC to 28-SOIC requires PCB footprint redesign. Pin assignments must be verified and circuit layout adapted accordingly.

Q: Are the electrical operating parameters identical between these parts?

A: Yes. Both components operate at 4.5V ~ 5.5V supply voltage, consume 2mA supply current, dissipate 10.5 mW power, and function across the -40°C ~ 110°C temperature range.

Q: What is the significance of CPC7691BA being obsolete?

A: Obsolete status indicates the component is no longer manufactured. The CPC7695BC, with active product status, provides continued availability for new designs and legacy system support.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CPC7691BA and CPC7695BC are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

Q: What is the primary difference between these substitute parts?

A: The package configuration differs: CPC7691BA uses 16-SOIC while CPC7695BC uses 28-SOIC. All other electrical, functional, and compliance parameters are equivalent.