Lattice Semiconductor Corporation LCMXO640E-4T100C

Mfr. Part

Commercial temperature range C

Manufacturer

Lattice Semiconductor

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Detailed Description

Low-density, non-volatile FPGA from the MachXO family

640 logic elements, 80 LABs/CLBs, 74 user I/O

Package 100-TQFP (14 x 14 mm), surface-mount, shipped in tray

Operating junction temperature 0°C to 85°C

Core supply voltage 1.14 V to 1.26 V (typical 1.2 V)

Mounting type Surface Mount

Category Integrated Circuits (ICs); Classification Embedded FPGAs

RoHS status Non-compliant

Key Features

640 logic cells for compact control, glue logic, and bridging

74 general-purpose I/O pins for flexible interfacing

Instant-on non-volatile configuration (no external configuration memory)

Low core voltage 1.2 V for low power

Stable commercial temp range 0°C to 85°C

JTAG boundary scan and programming support

Standard 100-pin TQFP footprint for easy PCB assembly and rework

MachXO architecture supported by Lattice design tools (Lattice Diamond)

Key Advantages

Simple to design in and cost-effective for low-to-mid complexity tasks

Non-volatile and instant-on startup improves system reliability and sequencing

Low power consumption reduces heat and extends battery life

Eliminates external Flash/ROM for configuration, cutting BOM and board area

Mature MachXO platform with broad ecosystem and proven field history

TQFP package enables hand-solder rework and lower-cost PCB manufacturing

74 I/O and 640 cells are ideal for interface bridging, state machines, and control

Packaging

Type Plastic Quad Flat Package, 100-pin TQFP/LQFP, Surface Mount

Body size 14 mm x 14 mm (low-profile), suitable for compact boards

Pin pitch typically 0.5 mm for 100-TQFP (confirm exact pitch in the datasheet)

Materials Epoxy mold compound body, copper leadframe; lead finish per lot. Note RoHS non-compliant version may use finishes with restricted substances.

Pin configuration 100 leads including 74 user I/O, multiple VCC and GND pins, JTAG pins (TCK, TMS, TDI, TDO), dedicated clock/config pins, banked I/O for voltage selection

Thermal characteristics Junction temperature 0°C to 85°C (commercial). Heat is removed through package leads into PCB copper. Use solid ground planes, thermal vias, and airflow if needed.

Electrical properties Core supply 1.14–1.26 V; I/O banks support common LVCMOS/LVTTL voltages (such as 1.8/2.5/3.3 V; check bank limits). JTAG typically at 2.5–3.3 V. Integrated ESD structures for robust handling.

Shipping Tray

Supplier device package 100-TQFP (14 x 14)

Lifecycle

Status Mature product in the first-generation MachXO family. Availability is still good, but newer MachXO2/MachXO3 families are recommended for new designs.

RoHS note This specific code is non-compliant. If you need RoHS-compliant parts, plan a substitution.

Equivalent or alternative models

- LCMXO2-640HC-4TG100C MachXO2, 100-TQFP, similar density, improved features. Not pin-compatible. RoHS compliant.

- LCMXO2-640HC-5TG100C MachXO2, faster speed grade, 100-TQFP. Not pin-compatible. RoHS compliant.

- LCMXO2-640HC-4SG48C/SG32C MachXO2 in smaller packages for space-limited designs. Not pin-compatible.

- LCMXO640C-4T100C MachXO 640 in 100-TQFP within the same family. Check exact pinout and RoHS status for compatibility.

- MachXO3L family parts (e.g., similar-density options if redesigning) offer modern features. Not pin-compatible.

If you need a drop-in, pin-compatible replacement or a RoHS-compliant variant, contact our sales team via our website. We will verify lifecycle notices, cross-references, and secure the best-fit alternatives quickly.

Key Application Areas

Interface bridging and protocol conversion (I2C–SPI–UART)

MCU/SoC glue logic and bus adaptation

I/O expansion, keypad/LED/display control

Power sequencing, reset control, and board management

Sensor aggregation, timing, and simple DSP/control tasks

Industrial control, consumer devices, telecom modules, computing peripherals needing instant-on and low power

Datasheet

Our website hosts the most authoritative datasheet and technical documents for LCMXO640E-4T100C. Download the datasheet on this page for full specifications, pinouts, timing, electrical limits, and design guidelines.

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