ProductsIntegrated CircuitsCY8C4125LQI-483
PACKAGE REFERENCEQFN-40Confirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

CY8C4125LQI-483

Infineon Technologies

CY8C4125LQI-483 is an Infineon (Cypress) PSOC 4100 microcontroller in the PSOC 4 family. It combines an Arm Cortex-M0 core with 32 KB Flash, 4 KB SRAM and 34 GPIOs in a 40-pin QFN package. The device includes CapSense and LCD direct-drive functionality. Confirm the complete ordering code, pin assignment, supply requirements and package dimensions against your board design. For project development, this legacy device uses PSOC Creator rather than the ModusToolbox development environment; confirm device support in the tool version used for your project. Include the full part number, quantity, packing format and any date-code or inspection requirements in your RFQ. Availability and delivery terms are confirmed with the quotation.

Integrated Circuits32-bit microcontrollerQFN-40
MPN
CY8C4125LQI-483
Manufacturer
Infineon Technologies
Family
32-bit microcontroller
Package
QFN-40
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
Lifecycle
Active
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
CY8C4125LQI-483
Manufacturer
Infineon Technologies
Product family
32-bit microcontroller
Category
Integrated Circuits
Package reference
QFN-40
Manufacturer-channel report
Confirmed on request
Sourceics price status
Quoted for required quantity
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Device family
PSoC 4 · CY8C4100 (CY8C4125)
CPU core
32-bit Arm Cortex-M0, up to 24 MHz
Flash memory
32 KB (32K x 8)
SRAM
4 KB (4K x 8) · no EEPROM
GPIO
34
ADC
12-bit SAR, 806 ksps
Analog blocks
2 op amps, 2 comparators, 2 CTB, 2 IDAC
Supply voltage
1.71 V to 5.5 V
Operating temperature
-40°C to 85°C
Package
QFN-40 (6x6), exposed pad
Key peripherals
CapSense, LCD direct drive, I2C, IrDA, LINbus, SPI, UART
Source: Infineon CY8C4125LQI-483 product page · PSoC 4 CY8C4100 family · Reviewed 2026-09-30
SELECTION GUIDANCE

CY8C4125LQI-483 selection guidance

CY8C4125LQI-483 is a 32-bit microcontroller from Infineon Technologies, orderable in the QFN-40 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.

When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.

QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Integrated Circuits records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

CY8C4125LQI-483 FAQ

What do the suffixes in CY8C4125LQI-483 mean?

Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. CY8C4125LQI-483 names the QFN-40 configuration; a code that differs by even one suffix character may be a different device. Always quote the complete code exactly as it appears on your BOM.

What is the difference between package and packing for CY8C4125LQI-483?

The package (QFN-40) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.

Can you provide traceability documents for CY8C4125LQI-483?

Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.

How do I request a quotation for CY8C4125LQI-483?

Add CY8C4125LQI-483 to your RFQ with the complete ordering code, the manufacturer (Infineon Technologies), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.