LCMXO256E-5TN100C

The LCMXO256E-5TN100C is a MachXO family Field Programmable Gate Array (FPGA) from Lattice Semiconductor offered in a 100‑pin LQFP/TQFP package. It combines non-volatile, instant‑on configuration with a compact logic fabric suited for glue logic, bus bridging, I/O expansion and system control tasks in commercial applications.

With 256 logic elements and up to 78 user I/Os, this device is aimed at designs that need single‑chip configuration, flexible I/O buffering and low-power standby behavior while keeping board-level bill-of-materials low.

Key Features

• Logic Capacity — 256 logic elements (LUTs) arranged to implement glue logic and control functions efficiently.
• I/O Density — Up to 78 user I/Os to support peripheral interfaces, bus handling and signal routing from a compact package.
• Non‑volatile, Instant‑On Configuration — Single‑chip non‑volatile configuration that powers up in microseconds and removes the need for external configuration memory.
• Reconfiguration and Security — Supports in-field reconfiguration of SRAM‑based logic and on‑chip non‑volatile programming via JTAG as described for the MachXO family.
• Low‑Power Modes — Sleep mode capability for substantial static current reduction (family data indicates up to 100× reduction in sleep).
• Memory — Approximately 2.0 Kbits of distributed RAM for small FIFOs and buffering; no embedded block SRAM (EBR) in this device.
• PLLs — This specific LCMXO256 device does not include analog PLLs (family table lists zero PLLs for this density).
• Voltage and Temperature — Core supply specified at 1.14 V to 1.26 V; commercial operating range of 0 °C to 85 °C.
• Package — Available in a 100‑pin LQFP (supplier package listed as 100‑TQFP, 14×14 mm) for easy prototyping and assembly.
• Flexible I/O Buffering (Family Capability) — MachXO family I/O buffers support a wide range of interfaces (LVCMOS, LVTTL, LVDS and others) for mixed‑signal board designs.

Typical Applications

• Glue Logic & Bus Interfacing — Implement address decoding, bus bridging and signal translation between system subsystems using compact logic and multiple I/Os.
• System Control & Power‑Up Sequencing — Control power rails, reset sequencing and startup logic with instant‑on behavior and on‑chip non‑volatile configuration.
• I/O Expansion & Protocol Bridging — Aggregate and translate peripheral signals, expand available I/Os, or perform simple protocol conversion at the board level.
• Field Upgradeable Logic — Enable in‑field updates to control logic through background programming and JTAG access for iterative product improvements.

Unique Advantages

• Single‑Chip Non‑Volatile Configuration: Eliminates the need for external configuration memory, simplifying BOM and reducing system complexity.
• Instant‑On Operation: Powers up in microseconds so control and interfacing functions are available immediately after supply ramp.
• High I/O Count Relative to Logic: 78 I/Os paired with 256 logic elements make it efficient for I/O‑centric glue logic and interface tasks.
• Low‑Power Standby: Sleep mode capability provides significant static current reduction for systems with duty‑cycled operation.
• Compact, Assembly‑Friendly Package: 100‑pin LQFP/TQFP option fits space‑constrained designs while remaining easy to prototype and rework.
• Family Ecosystem: Leverage MachXO family features such as flexible sysIO buffering and in‑system programming for scalable design migration.

Why Choose LCMXO256E-5TN100C?

The LCMXO256E-5TN100C positions itself as a compact, non‑volatile FPGA well suited to commercial designs that require immediate startup, versatile I/O handling and on‑chip reconfiguration without external configuration memory. Its combination of 256 logic elements and 78 I/Os in a 100‑pin package addresses common board‑level control, interfacing and power sequencing needs while keeping BOM complexity low.

For designers who need a reliable, field‑upgradeable logic device with low standby current and flexible I/O options, this MachXO device provides a practical balance of integration, configurability and package convenience backed by the MachXO family feature set.

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