CY7C109B-12ZXC Equivalent & Substitute Parts

Part Overview

The CY7C109B-12ZXC is a 1Mbit asynchronous SRAM memory IC manufactured by Infineon Technologies, featuring parallel interface architecture with 128K x 8 memory organization. This component operates at 12 ns access and write cycle times within a 4.5V to 5.5V supply voltage range, packaged in a 32-TFSOP surface mount configuration.

The CY7C109B-12ZXC carries an obsolete product status. Identifying equivalent substitute parts is essential for system redesign, legacy product support, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

CY7C109B-12ZXC

Infineon TechnologiesIn Stock: 978CY7C109B-12ZXC Datasheet

Current PartRFQ

IS61C1024AL-12TLI

ISSI, Integrated Silicon Solution IncIn Stock: 4114IS61C1024AL-12TLI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CY7C109B-12ZXC is determined by strict alignment across the following critical parameters:

• Memory capacity: 1Mbit
• Memory organization: 128K x 8 bit configuration
• Interface type: Parallel asynchronous architecture
• Access and write cycle timing: 12 ns maximum
• Supply voltage compatibility: 4.5V to 5.5V operating range
• Package footprint: 32-TFSOP surface mount
• Environmental compliance: ROHS3 and REACH status
• Moisture sensitivity level: MSL 3 rating

The IS61C1024AL-12TLI from ISSI meets all substitution criteria within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

The IS61C1024AL-12TLI qualifies as a direct substitute for the CY7C109B-12ZXC based on electrical and mechanical parameter equivalence. Both components share identical memory capacity, organization, interface architecture, timing specifications, and supply voltage requirements.

The IS61C1024AL-12TLI carries active product status, ensuring ongoing availability and manufacturing support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current applications.

The IS61C1024AL-12TLI supports an extended operating temperature range of -40°C to 85°C compared to the CY7C109B-12ZXC range of 0°C to 70°C. This extended range provides additional thermal margin for applications operating outside the original specification envelope.

Frequently Asked Questions (FAQ)

Q: Can the IS61C1024AL-12TLI replace the CY7C109B-12ZXC in existing designs?

A: Yes. Both components share identical memory capacity (1Mbit), organization (128K x 8), parallel interface architecture, access timing (12 ns), write cycle timing (12 ns), and supply voltage range (4.5V to 5.5V). The 32-TFSOP package footprint and pinout are equivalent, enabling direct PCB substitution.

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

A: The CY7C109B-12ZXC is obsolete, while the IS61C1024AL-12TLI maintains active product status. The IS61C1024AL-12TLI also supports an extended operating temperature range of -40°C to 85°C versus 0°C to 70°C for the original part.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the CY7C109B-12ZXC and IS61C1024AL-12TLI are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Does package compatibility require any PCB modifications?

A: No. Both components use the 32-TFSOP surface mount package with identical footprint dimensions (0.724" × 18.40mm width). No PCB layout changes are necessary for substitution.

Q: What is the MSL rating for both components?

A: Both parts carry MSL 3 rating with a 168-hour moisture sensitivity window, requiring equivalent handling and storage protocols during assembly operations.