ICE40LP8K-CM81

ICE40LP8K-CM81 is Lattice Semiconductor’s ultra-low-power iCE40LP family FPGA in an 81-ball CM81 package. The “8K” denotes about 8,000 logic elements, making it a compact choice for small, battery-powered or space-constrained applications. It provides standard logic blocks, flip-flops, and distributed RAM/shift registers suitable for glue logic, small controllers, signal processing, and simple interface logic.
Key points:
- Very low static power, suitable for portable devices.
- CM81 package enables a moderate I/O count in a tiny footprint.
- Open, easy-to-learn toolchain support (Lattice Radiant / iCEcube2) and strong open-source flow (Yosys/nextpnr-ice40, icestorm).
- Common uses: embedded controllers, USB/communication interfaces, sensor hubs, data logging, and small custom logic blocks.
Notes:
- For exact I/O count, RAM/ROM capacity, timing, and pinout, consult the official datasheet and package drawings.
- Ideal for hobbyists and rapid-prototyping due to low cost and broad toolchain support.

Equivalent products: None exact across vendors. The iCE40LP8K-CM81 is a unique 8K-LE FPGA in an 81-ball CM package. Closest substitutes are other iCE40LP8K devices in different packages or other iCE40LP variants with similar capacity, but pinouts differ. For a true replacement, use another iCE40LP8K-CM81 or re-layout for a different package.

Key features of ICE40LP8K-CM81 (low-power FPGA):
- 8K logic elements (LEs) for compact, cost-efficient designs
- LUT-based fabric with flip-flops; flexible, small- to mid-density logic
- Clock management: one or more programmable PLLs for clock generation
- On-chip memory: distributed RAM blocks suitable for small SRAM needs
- I/O: multiple banks with 3.3V-tolerant LVCMOS I/O; supports common I/O standards
- DSP/MAC: LUT-based processing (no dedicated DSP blocks; tight silicon for simple arithmetic)
- Configuration and programming: SPI/SSPI, JTAG; in-system programming support
- Power and packaging: LP family optimized for low static/dynamic power; CM81 package for small footprint
- Core/I/O voltages: typical 1.2V core with I/O banks operable at >=1.8–3.3V
- Applications: cost-sensitive, space-constrained implementations such as interface bridging, small controllers, and feature-expansion tasks
Note: for exact counts (I/O count, RAM size, clock options) refer to the official datasheet for this device variant.

- Pin count: 81 pins (81-ball CSBGA package, CM81).
- Function: iCE40LP8K is a low-power FPGA with 8K logic elements in the iCE40LP family.

- Manufacturer: Lattice Semiconductor Corporation (Lattice).
- What kind of company: A fabless semiconductor company that designs and markets programmable logic devices (FPGAs, CPLDs) and related IP; manufacturing is outsourced to semiconductor foundries.

Application areas of ICE40LP8K-CM81 (compact, low-power FPGA in 81-ball package):
- Glue logic and interface bridging in cost-sensitive embedded systems (consumer, automotive, industrial)
- Peripherals and protocol controllers: SPI, I2C, UART, and custom bus interfaces
- Display and LED drive: small LCD/TFT panel interfaces, backlight PWM, LED matrix control
- Sensor interfaces and timing-critical control: ADC interfacing, PWM, motor control, data conditioning
- Edge/IoT and embedded applications needing a compact, low-power FPGA
- Prototyping, education, and product development: RTL experimentation and small-footprint glue logic for SoCs

CSBGA81 — an 81-ball surface-mount BGA package (81-ball CSBGA).