M4A3-384/192-10FAC Equivalent & Substitute Parts

Part Overview

The M4A3-384/192-10FAC is a Complex Programmable Logic Device (CPLD) from Lattice Semiconductor Corporation's ispMACH® 4A series. This device features 384 macrocells, 192 I/O pins, and a 10 ns propagation delay, housed in a 256-pin BGA package. The product is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring compatible functionality.

Substiute Parts

M4A3-384/192-10FAC

Lattice Semiconductor CorporationIn Stock: 868M4A3-384/192-10FAC Datasheet

Current PartRFQ

LC4384V-10FTN256I

Lattice Semiconductor CorporationIn Stock: 801LC4384V-10FTN256I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M4A3-384/192-10FAC is determined by the following critical parameters:

• Macrocell Count: 384 macrocells (functional logic capacity)
• I/O Pin Count: 192 I/O pins (interface capability)
• Propagation Delay: 10 ns maximum (timing performance)
• Supply Voltage: 3V ~ 3.6V (power compatibility)
• Package Type: 256-pin BGA footprint (physical compatibility)
• Programmability: In System Programmable (ISP) capability

The LC4384V-10FTN256I meets all critical substitution criteria, offering identical macrocell count, I/O configuration, timing performance, and supply voltage specifications within the same package family.

Parameter Comparison

Engineering Selection Recommendations

The LC4384V-10FTN256I is the direct functional equivalent for the obsolete M4A3-384/192-10FAC. Both devices share identical macrocell architecture, I/O configuration, and timing specifications, ensuring pin-compatible operation within the same 256-pin BGA footprint family.

The LC4384V-10FTN256I offers improved product lifecycle status as an active component, providing extended availability and supply chain stability. The substitute device supports an expanded operating temperature range (-40°C ~ 105°C) compared to the original part (0°C ~ 70°C), enabling deployment in broader environmental conditions.

The LC4384V-10FTN256I achieves ROHS3 compliance, whereas the original M4A3-384/192-10FAC is RoHS non-compliant. This distinction is relevant for applications subject to regulatory compliance requirements. Both devices maintain identical moisture sensitivity specifications and REACH status.

Frequently Asked Questions (FAQ)

Q: Are the M4A3-384/192-10FAC and LC4384V-10FTN256I pin-compatible?

A: Both devices use 256-pin BGA packages with 17x17 mm footprints. The M4A3-384/192-10FAC uses FPBGA packaging, while the LC4384V-10FTN256I uses FTBGA packaging. Both are surface-mount BGA variants with compatible pinout for the 384 macrocell, 192 I/O configuration.

Q: What are the key functional differences between these devices?

A: Functionally, both devices are equivalent. They provide identical macrocell count (384), I/O pin count (192), and propagation delay (10 ns). The primary differences are product lifecycle status and operating temperature range.

Q: Can the LC4384V-10FTN256I replace the M4A3-384/192-10FAC in existing designs?

A: The LC4384V-10FTN256I meets all critical electrical and mechanical substitution criteria. Both devices support In System Programmable (ISP) configuration and operate at identical supply voltages (3V ~ 3.6V). Designs must account for the expanded operating temperature range of the substitute device.

Q: What is the significance of the RoHS compliance difference?

A: The M4A3-384/192-10FAC is RoHS non-compliant, while the LC4384V-10FTN256I is ROHS3 compliant. This distinction affects applications subject to environmental and regulatory requirements. The substitute device meets current RoHS3 standards.

Q: Are there any package considerations when substituting these parts?

A: Both devices use 256-pin BGA packages with identical 17x17 mm footprints. The FPBGA and FTBGA variants are both surface-mount technologies with compatible land patterns for standard BGA assembly processes.