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HomeProductsIntegrated Circuits (ICs)Specialized ICsIM4A3-128/64
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IM4A3-128/64 - Lattice Semiconductor

Manufacturer Part Number
IM4A3-128/64
Manufacturer
Lattice Semiconductor
Allelco Part Number
32D-IM4A3-128/64
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
4,700 pcs available, New & Original
Parts Description
DAC91001
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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In stock: 4700

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Specifications

IM4A3-128/64 Tech Specifications
Lattice Semiconductor - IM4A3-128/64 technical specifications, attributes, parameters and parts with similar specifications to Lattice Semiconductor - IM4A3-128/64

Product Attribute Attribute Value
Part Number IM4A3-128/64
Package DAC91001
Description DAC91001
Stock Condition Get 4700 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Lattice Semiconductor
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Frequently Asked Questions(FAQ)

How does the iM4A3-128/64 from LATTICE compare to other FPGA devices in terms of logic density and I/O flexibility for industrial control applications?
The iM4A3-128/64 offers 128 macrocells and 64 I/O pins, providing a balance between logic capacity and pin count suitable for mid-range programmable logic tasks. When compared to similar QFP-packaged FPGAs, it typically delivers lower resource utilization than larger devices such as those with 500+ macrocells but exceeds entry-level alternatives in configurability. This makes it appropriate for embedded motor control or sensor interfacing where moderate logic complexity is required without excessive power or board space. Designers often pair it with microcontrollers to offload timing-critical functions, leveraging its deterministic response for real-time decision-making.
What are the key thermal and power considerations when integrating the iM4A3-128/64 into a compact industrial PCB design?
Operating within a QFP package, the iM4A3-128/64 exhibits moderate dynamic power consumption due to its moderate logic density and clock speeds typical of industrial-grade FPGAs. In typical configurations at 3.3V core voltage and 50 MHz operation, active power draw ranges between 150–250 mW. Thermal management is manageable in most enclosure designs, but sustained high switching activity may require careful layout to avoid localized heating. For designs targeting long-term reliability, maintaining junction temperatures below 85°C is advisable, which can be achieved through adequate copper pour, thermal vias, and airflow planning—especially when combined with other heat-generating components.
Can the iM4A3-128/64 be used in safety-critical environments requiring functional safety certification?
While the iM4A3-128/64 supports robust configuration and timing control, it is not inherently qualified for safety-certified systems under standards like IEC 61508 or ISO 26262. Its architecture lacks built-in diagnostic features such as lockstep cores, memory scrubbing, or fault injection detection common in hardened safety FPGAs. However, with additional external monitoring circuitry and software-based self-tests, it may be deployed in non-certified safety-related roles where fail-safe behavior is implemented through system-level redundancy. Designers should evaluate whether application-specific risk assessments justify its use outside certified domains.
What development tools and programming environments are supported for the iM4A3-128/64?
The iM4A3-128/64 is supported by LATTICE’s Diamond Programmer and the newer Radiant FPGA design suite, both offering schematic entry, HDL synthesis (VHDL and Verilog), and timing analysis. These tools provide device-specific constraints, IP integration, and bitstream generation compatible with QFP packaging. While third-party EDA support is limited compared to Xilinx or Intel offerings, the toolchain remains sufficient for small to medium digital systems. Design verification typically relies on in-system testing due to limited onboard debugging resources, so thorough simulation and testbench development are essential before deployment.
How does the I/O configuration of the iM4A3-128/64 impact signal integrity in high-speed communication interfaces?
With 64 user-configurable I/Os, the iM4A3-128/64 allows flexible assignment to LVCMOS, LVTTL, or LVDS standards depending on the application. For interfaces such as SPI, UART, or parallel bus bridging, proper termination and trace routing become critical. At speeds above 100 Mbps, impedance matching and controlled rise times are necessary to prevent reflections. Unlike dedicated transceivers found in higher-end FPGAs, this device uses general-purpose I/O blocks, so designers must manually manage slew rates and drive strength settings in the configuration file to maintain signal fidelity over longer traces or noisy environments.
What are the limitations of using the iM4A3-128/64 for implementing large state machines or deep memory structures?
Although the iM4A3-128/64 contains embedded SRAM blocks and flip-flops, its total available block RAM is typically limited to 24 Kbits—insufficient for complex data buffering or large lookup tables. State machines with hundreds of states may consume significant routing resources, leading to timing closure challenges if not carefully partitioned. Designers often implement such logic using distributed RAM or external memory chips. Therefore, while capable of handling moderate sequential circuits, the device is best suited for control logic rather than data-intensive processing tasks requiring extensive local storage.
How does boot-up behavior differ between the iM4A3-128/64 and more advanced FPGA families during system initialization?
Upon power-on, the iM4A3-128/64 loads its configuration from an external flash via a serial interface, resulting in startup delays of 50–100 ms under typical conditions. Unlike instant-on architectures, it does not support partial reconfiguration or hot-swapping of logic regions. Once configured, it behaves deterministically, but any configuration errors may lead to undefined initial states unless guarded by reset sequences. This contrasts with larger FPGAs that offer faster load times and runtime reprogrammability, making the iM4A3-128/64 better suited for fixed-function deployments where reprogramming is infrequent.
In what scenarios would replacing the iM4A3-128/64 with a CPLD be more advantageous?
A CPLD might be preferable over the iM4A3-128/64 when the application demands ultra-low latency, deterministic propagation delays under 10 ns, or minimal configuration overhead. Devices like the MachXO3 series offer simpler programming models, lower power in idle modes, and better performance for glue-logic or bus-matching tasks. The iM4A3-128/64 trades some speed for greater flexibility in implementing complex finite-state machines or custom datapaths. Thus, if the design requires only simple combinatorial or registered logic without significant algorithmic content, a CPLD could reduce cost, power, and complexity.

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Customer Reviews

Evaluation: 10 Articles

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

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Lattice Semiconductor

IM4A3-128/64

Lattice Semiconductor
32D-IM4A3-128/64

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