Lattice Semiconductor Corporation ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP
- Part No.:
- ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP
- Manufacturer:
- Lattice Semiconductor Corporation
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 36-VFBGA
- Description:
- IC FPGA 26 I/O 36UCBGA
- Quantity:
- Payment:

- Shipping:

Inventory:1,392
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Product details
Lattice Semiconductor ICE40UL1K-CM36AI - iCE40 UltraLite FPGA
The ICE40UL1K-CM36AI doubles the logic of the UL640 while keeping the same tiny 2.5 × 2.5 mm footprint: 1,248 LUTs, 56 kb of EBR, a PLL and Lattice's hardened mobile functions (RGB PWM, IR, dual I2C, two oscillators) on a 40 nm low-power process. It is the density you pick when a sensor-hub or LED-control design outgrows 640 LUTs but cannot grow a millimetre.
Key Features
- 1,248 LUTs (1,248 logic cells) - 2× the UL640 in the same package
- 56 kb sysMEM EBR plus distributed RAM
- One PLL plus hardened 48 MHz / 10 kHz oscillators
- Hardened RGB PWM, IR TX/RX, two I2C cores
- ≈ 35 µA static power; 100 mA / 400 mA LED sinks on chip
- 36-ball ucBGA (2.5 × 2.5 mm), 26 user I/O, industrial temperature
Technical Specifications
| Manufacturer classification | Lattice official: iCE40 UltraLite - Small Low-Power FPGA |
| Manufacturer | Lattice Semiconductor |
| Series | iCE40 UltraLite, 40 nm LP |
| Device | ICE40UL1K |
| Logic cells (LUT + FF) | 1,248 |
| EBR block RAM | 56 kb (14 blocks) |
| PLL | 1 |
| Hardened functions | 2× I2C, IR TX/RX, RGB PWM, 48 MHz + 10 kHz oscillators |
| Configuration | On-chip NVCM (OTP) or external SPI |
| Package | CM36 - 36-ball ucBGA, 2.5 × 2.5 mm, 26 I/O |
| Temperature | Industrial, -40 to +85 °C |
| RoHS | Compliant |
Typical Applications
Per the iCE40 UltraLite data sheet (FPGA-DS-02027): smartphones and handheld consumer devices, multi-sensor management, IR remote and barcode emulation, RGB lighting control, and battery-powered wearable and IoT nodes that must react to sensors while the host SoC sleeps.
Procurement & Availability
- Availability: in stock - live quantity shown above
- MOQ: 1 pc
- Lead time: ships within 24 h for orders confirmed before 15:00 CST
- Packaging: factory sealed
- Warranty: 12 months · traceability: date code and lot on request
Frequently Asked Questions
Q: UL1K vs UL640 - what changes?
A: Only logic density (1,248 vs 640 LUTs) and price. EBR, PLL, hardened blocks, package and I/O count are identical, so migration is a recompile, not a respin.
Q: Can it replace an MCU for LED effects?
A: Yes - the hardened RGB PWM and IR blocks run with zero fabric involvement, so breathing/colour effects draw only microwatts.
Q: Is NVCM mandatory?
A: No - the device can also boot from external SPI flash or be configured by an external master such as an application processor.
Parameter Sources
- Lattice iCE40 UltraLite Family Data Sheet FPGA-DS-02027 (UL1K = 1,248 LC, 56 kb EBR, 1 PLL, CM36 = 26 I/O)
- Lattice iCE40 Ultra product page
Pictures are for reference only; actual product prevails. Specifications per the manufacturer datasheet - verify against the current revision before design-in.
- Specifications
- FAQ
- Product Comparison
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Lattice Semiconductor Corporation
- Series:
- iCE40 UltraLite™
- Package/Case:
- 36-VFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 156
- Number of Logic Elements/Cells:
- 1248
- Total RAM Bits:
- 57344
- Number of I/O:
- 26
- Number of Gates:
- -
- Voltage - Supply:
- 1.14V ~ 1.26V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -40°C ~ 100°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 36-UCBGA (2.5x2.5)
1. How to order ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP on SANJIA TECHNOLOGY LTD.?
Currently, SANJIA TECHNOLOGY LTD. only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does SANJIA TECHNOLOGY LTD. guarantee that ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP is from the original manufacturer or authorized agents?
We have a professional and experienced quality control team to strictly verify and test the ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP. All suppliers must pass our qualification reviews before they can publish their products including ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP on SANJIA TECHNOLOGY LTD.; we pay more attention to the channels and quality of ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP price and inventory displayed accurate?
The price and inventory of ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?
Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.
Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?
Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.
Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.
Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP we delivered, we will accept the replacement or return of the ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP pin diagram, ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP datasheet?
If you need any after-sales service, please do not hesitate to contact us.
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| Part Number | ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP | ICE40UL1K-SWG16ITR1K | ICE40UL1K-CM36AITR | ICE40UL1K-CM36AITR1K | ICE40UL1K-SWG16ITR |
| Manufacturer | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation |
| Series | iCE40 UltraLite™ | iCE40 UltraLite™ | iCE40 UltraLite™ | iCE40 UltraLite™ | iCE40 UltraLite™ |
| Package/Case | 36-VFBGA | 16-XFBGA, WLCSP | 36-VFBGA | 36-VFBGA | 16-XFBGA, WLCSP |
| Packaging | Tray | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active | Active | Active | Active |
| Programmable | Not Verified | Not Verified | Not Verified | Not Verified | Not Verified |
| Number of LABs/CLBs | 156 | 156 | 156 | 156 | 156 |
| Number of Logic Elements/Cells | 1248 | 1248 | 1248 | 1248 | 1248 |
| Total RAM Bits | 57344 | 57344 | 57344 | 57344 | 57344 |
| Number of I/O | 26 | 10 | 26 | 26 | 10 |
| Number of Gates | - | - | - | - | - |
| Voltage - Supply | 1.14V ~ 1.26V | 1.14V ~ 1.26V | 1.14V ~ 1.26V | 1.14V ~ 1.26V | 1.14V ~ 1.26V |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 100°C (TJ) | -40°C ~ 100°C (TJ) | -40°C ~ 100°C (TJ) | -40°C ~ 100°C (TJ) | -40°C ~ 100°C (TJ) |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
| Supplier Device Package | 36-UCBGA (2.5x2.5) | 16-WLCSP (1.4x1.48) | 36-UCBGA (2.5x2.5) | 36-UCBGA (2.5x2.5) | 16-WLCSP (1.4x1.48) |

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ICE40UL1K-CM36AI iCE40 UltraLite FPGA — 1248 LUTs, WLCSP.pdf


