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Infineon Technologies CY8C4146LQI-S422T — Microcontrollers & Processors (MCU / MPU / DSP)

CY8C4146LQI-S422T Infineon PSoC 4 MCU, 48MHz, 64KB Flash

MPNCY8C4146LQI-S422T
End of Life

Infineon Technologies PSoC® 4 CY8C4100S ARM Cortex-M0+ MCU, 48MHz, 64KB Flash, 8KB RAM, 27 I/O, CapSense, 32-UFQFN exposed pad, -40°C to 85°C.

$3.77Ref. price · indicative, final on quote
Packaging32-UFQFN Exposed Pad
StockIn Stock (14)
Lead time3-5 Days wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

CY8C4146LQI-S422T Technical Specifications
ParameterValue
SeriesPSOC® 4 CY8C4100S
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed48MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size8K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, CapSense, LCD, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)27
Core processorARM® Cortex®-M0+
Case32-UFQFN Exposed Pad
Data convertersA/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC
Program memory size64KB (64K x 8)

Product details

48MHz Cortex-M0+ with on-chip CapSense and mixed-signal

The CY8C4146LQI-S422T is a PSoC 4 ARM Cortex-M0+ MCU clocked at 48MHz, with 64KB Flash and 8KB RAM — enough headroom for a touch-sense UI, sensor fusion, or motor-control loop without external memory. On-chip CapSense and LCD drive eliminate the external touch controller and segment-driver IC, saving BOM cost and board area in human-machine interface designs.

Mixed-signal front-end and serial connectivity

The ADC subsystem pairs a 16-channel 10-bit slope converter with a 16-channel 12-bit SAR converter — the slope ADC handles slow, high-resolution measurements (temperature, battery voltage) while the SAR ADC captures faster signals (current sense, audio envelope) without contention. Two IDAC outputs provide programmable current sources for sensor excitation or closed-loop control — useful for driving an RTD or biasing a photodiode without an external DAC.

Frequently asked questions

What is the closest pin-compatible alternative to CY8C4146LQI-S422T in the PSoC 4 family?

Within the same CY8C4100S series, the CY8C4146LQI-S422 (non-tape-and-reel variant) shares the same 32-QFN package, 48MHz core, 64KB Flash, and 8KB RAM.

What compliance documentation does Infineon provide for CY8C4146LQI-S422T?

Infineon provides a ROHS3 compliance certificate and a REACH declaration. The part is free of the six original RoHS substances plus DEHP, BBP, DBP, and DIBP. No UL or IEC certification is listed in the available documentation.

What is CY8C4146LQI-S422T's listed speed?

The core runs at 48MHz — the Cortex-M0+ pipeline delivers 0.95 DMIPS/MHz, so the effective throughput is about 45 DMIPS at full clock, assuming zero flash wait states.