LCMXO640E-4B256I

The LCMXO640E-4B256I is a MachXO family Field Programmable Gate Array (FPGA) device in a 256-ball LFBGA package designed for industrial applications. It combines non-volatile, instant-on operation with flexible programmable I/O and a compact logic fabric—making it well suited for glue logic, bus bridging, power-up control, and general control logic tasks.

Key architectural elements include 640 logic elements, up to 159 I/Os, and support for in-field reconfiguration and low-power modes, enabling compact, single-chip system designs that require deterministic startup and reprogrammability.

Key Features

• Core Logic  Approximately 640 logic elements providing the programmable logic capacity for glue logic, interface bridging, and control tasks.
• I/O Density  159 programmable I/Os to support dense peripheral and bus interfacing in compact board layouts.
• Non‑volatile Instant‑On Configuration  Single-chip, non-volatile configuration that powers up in microseconds without external configuration memory.
• Reconfiguration and Security  Supports in-field reconfiguration and secure operation with no external bitstream to intercept; SRAM-based logic can be reconfigured in milliseconds.
• Memory (Family)  MachXO family devices in this class provide distributed RAM capability (family data indicates ~6.1 Kbits for LCMXO640 devices).
• Power Management  Sleep mode capability that allows up to 100× reduction in static current for low-power standby operation.
• Flexible I/O Standards  Programmable I/O buffers support a wide range of interface standards (as defined by the MachXO family), enabling diverse peripheral connectivity.
• Operating Range & Grade  Industrial-grade device with operating temperature range of −40 °C to 100 °C and a specified supply voltage window of 1.14 V to 1.26 V.
• Package & Mounting  Surface-mount 256-ball LFBGA / caBGA package (14 × 14 mm) for compact PCB integration.

Typical Applications

• Glue Logic  Implement multiplexing, address decoding, and simple state machines to consolidate discrete logic into a single FPGA.
• Bus Bridging and Protocol Translation  Bridge mismatched buses and implement protocol adapters where multiple I/O standards and moderate logic density are required.
• Power‑Up and System Control  Manage power sequencing, reset logic, and deterministic startup behavior using non-volatile instant-on capability.
• Peripheral and Sensor Interface  Aggregate and condition signals from sensors and peripherals with flexible I/O and programmable logic functions.

Unique Advantages

• Instant‑on, single‑chip configuration: Eliminates the need for external configuration memory and enables microsecond startup for time-critical systems.
• High I/O-to-logic ratio: 159 I/Os paired with 640 logic elements provide a balanced platform for dense interfacing without excessive logic overprovisioning.
• Industrial temperature grade: −40 °C to 100 °C rating supports deployment in rugged and temperature-variable environments.
• Low‑power standby: Sleep mode reduces static current by up to 100× to extend system standby life and lower thermal dissipation.
• In‑field reconfigurability: Background programming and TransFR reconfiguration enable updates and logic changes while preserving system operation.
• Compact BGA packaging: 256-ball LFBGA (14×14 mm) enables high I/O count in a compact footprint for space-constrained designs.

Why Choose LCMXO640E-4B256I?

The LCMXO640E-4B256I is positioned for engineers who need a compact, industrial‑grade, non-volatile FPGA with balanced logic capacity and a high I/O count. Its instant-on behavior, in-field reconfiguration capabilities, and sleep mode make it attractive for control, interfacing, and power sequencing tasks where deterministic startup and low standby power are important.

Supported by the MachXO family architecture and associated design tools, this device offers a practical migration path within the family and reduces system BOM by eliminating external configuration memory while delivering flexible interfacing in a 256-ball LFBGA package.

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