ATF16V8B-10SC Equivalent & Substitute Parts

Part Overview

The ATF16V8B-10SC is a 16V8 Programmable Logic Device (PLD) IC manufactured by Microchip Technology, featuring 8 macrocells with 10 ns propagation delay in a 20-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement. The ATF16V8B series remains functionally relevant for legacy system maintenance and new designs requiring EE PLD functionality with 5V input specifications.

Substiute Parts

ATF16V8B-10SC

Microchip TechnologyIn Stock: 778ATF16V8B-10SC Datasheet

Current PartRFQ

ATF16V8B-15SU

Microchip TechnologyIn Stock: 17094ATF16V8B-15SU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF16V8B-10SC is determined by the following critical parameters that must remain constant across equivalent parts:

• Series and Macrocell Configuration: ATF16V8 series with 8 macrocells
• Programmable Type: EE PLD technology
• Input Voltage: 5V specification
• Package: 20-SOIC form factor with identical pin configuration
• Mounting Type: Surface mount compatibility

The ATF16V8B-15SU qualifies as a direct substitute based on matching all core electrical and mechanical parameters. The primary difference is propagation delay speed (15 ns versus 10 ns), which represents a relaxed timing specification suitable for applications where the original 10 ns performance is not a critical constraint.

Parameter Comparison

Engineering Selection Recommendations

The ATF16V8B-15SU is the qualified substitute for ATF16V8B-10SC applications. Selection criteria are based on the following factors:

Product Status: The ATF16V8B-15SU maintains active product status with Microchip Technology, ensuring continued availability and manufacturing support. The original ATF16V8B-10SC is obsolete, making the active substitute the appropriate choice for new procurement.

Compliance and Certifications: The ATF16V8B-15SU achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The substitute's improved compliance posture aligns with current regulatory requirements.

Functional Equivalence: Both parts share identical macrocell count, programmable type, input voltage, and package specifications. The 5 ns timing difference (15 ns versus 10 ns) represents a relaxed performance specification that accommodates most legacy system requirements.

Availability: The ATF16V8B-15SU demonstrates significantly higher inventory levels (16,994 pcs) compared to the obsolete original part (683 pcs), supporting reliable long-term procurement.

Frequently Asked Questions (FAQ)

Q: Can the ATF16V8B-15SU directly replace the ATF16V8B-10SC in existing designs?

A: Yes, provided the application timing requirements do not mandate the 10 ns propagation delay. The substitute maintains identical pin configuration, package form factor, and electrical specifications at 5V input. Verify that system timing margins accommodate the 15 ns specification.

Q: What is the significance of the speed difference between 10 ns and 15 ns?

A: Speed specification refers to propagation delay through the logic device. The ATF16V8B-15SU operates with 5 ns additional delay. Applications with non-critical timing paths or sufficient setup/hold time margins can operate with this relaxed specification without functional impact.

Q: Are the packages physically identical?

A: Yes. Both parts use the 20-SOIC package with 0.295" (7.50mm) width. Pin count, spacing, and mounting footprint are identical, enabling direct PCB compatibility.

Q: What is the difference between RoHS non-compliant and ROHS3 compliant status?

A: ROHS3 compliance indicates the ATF16V8B-15SU meets current Restriction of Hazardous Substances directives, restricting lead and other hazardous materials. The original part predates these requirements. For applications subject to RoHS regulations, the substitute is the appropriate selection.

Q: Is the EE PLD programmable type identical between both parts?

A: Yes. Both parts use Electrically Erasable Programmable Logic Device technology, supporting identical programming methodologies and device configuration procedures.