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Infineon Technologies CY8C4146LQQ-S432
- Part No.:
- CY8C4146LQQ-S432
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQQ-S432.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,775
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Product details
Overview
CY8C4146LQQ-S432 from Infineon is a programmable 32-bit Arm® Cortex®-M0+ microcontroller with 48 MHz CPU, 64 KB flash, 8 KB SRAM, integrated CAPSENSE™ capacitive sensing, 12-bit 1-Msps SAR ADC, and three reconfigurable serial communication blocks (I²C/SPI/UART). It supports deep-sleep operation at 2.5 µA and delivers best-in-class SNR (>5:1) for water-tolerant touch interfaces in industrial HMI and consumer control panels.
For engineers reviewing the CY8C4146LQQ-S432 datasheet, CY8C4146LQQ-S432 pinout, CY8C4146LQQ-S432 application, or CY8C4146LQQ-S432 equivalent, key selection criteria include its dual opamp + comparator analog subsystem, SmartSense auto-tuning for CAPSENSE™, TCPWM kill-signal triggering for motor safety, and GPIO flexibility across 36 pins with programmable drive strength and slew rate.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with fully reconfigurable analog (CTB opamps, SAR ADC, CSD sigma-delta engine) and digital (TCPWM, SCB, PLD) blocks routed via a flexible interconnect matrix. Its clock system combines ±2% IMO, 32 kHz ILO, and WCO for precision timing across sleep/wake transitions.
Analog resources operate independently in Deep Sleep: both opamps and comparators remain active while consuming <1 µA each; the 12-bit SAR ADC supports channel sequencing with hardware averaging, and the CSD block enables >5:1 SNR without external shielding or firmware compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply, deterministic real-time execution for motor control and sensor fusion. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for bootloader, CAPSENSE™ middleware, and application logic with over-the-air update headroom. |
| ADC | 12-bit 1-Msps SAR with sequencer & averaging - enables synchronized multi-channel acquisition (e.g., temperature + voltage + current) in compact embedded systems. |
| CAPSENSE™ | Sigma-delta CSD with SmartSense auto-tuning - eliminates manual calibration, maintains >5:1 SNR under moisture or EMI, reducing BOM cost vs. shielded alternatives. |
| Power | 1.71–5.5 V supply, 2.5 µA Deep Sleep - supports battery-powered devices with >1-year shelf life using coin-cell or energy-harvesting sources. |
| GPIO | 36 programmable pins with configurable drive modes - allows direct connection to LCD segments, LEDs, buttons, and analog sensors without external level shifters. |
| SCB Blocks | 3 independent reconfigurable serial blocks - supports concurrent I²C (sensor hub), SPI (flash memory), and UART (debug/PC interface) without resource conflict. |
Pinout & Package
Package: 44-lead TQFP (LQQ suffix), 10 mm × 10 mm, 0.8 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O power supply | Accepts 1.71–5.5 V; decoupling required per datasheet layout guidelines to maintain analog integrity during CAPSENSE™ operation. |
| GND | Ground reference | Dual ground pins (GND1/GND2) isolate analog/digital return paths to minimize noise coupling into SAR ADC inputs. |
| P0[0]–P0[7] | General-purpose I/O | Support CAPSENSE™ CSD, analog input, or digital PWM output; each pin configurable for high-drive or low-slew mode to reduce EMI. |
| SWDCLK / SWDIO | Debug interface | Two-pin ARM Serial Wire Debug - enables in-system programming and real-time trace without dedicated JTAG header footprint. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; compatible with pushbutton or supervisor IC assertion for fail-safe recovery. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration reduces firmware development time by eliminating manual parameter sweeps for electrode geometry or environmental drift. |
| Deep Sleep analog retention | Opamps and comparators remain powered in Deep Sleep (<1 µA each), enabling wake-on-touch or wake-on-threshold events without full MCU restart latency. |
| TCPWM kill signal | Comparator-triggered hardware fault response disables PWM outputs within one clock cycle - critical for functional safety in BLDC motor drives. |
| Reconfigurable SCBs | Three serial blocks dynamically assigned as I²C master/slave, SPI master/slave, or UART TX/RX - simplifies protocol migration and reduces PCB layer count. |
| Programmable drive strength | GPIO output drive selectable from 1–25 mA per pin with slew-rate control - avoids overshoot on long traces while driving LEDs or LCD segments directly. |
Applications
| Industrial HMI Panel | Smart Appliance Control |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panel with ambient temperature range −25°C to +70°C and occasional condensation. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scan, local sensor readout, and Modbus RTU over UART to host controller. Use Value: Sigma-delta CSD achieves >5:1 SNR without conductive coating or guard traces, cutting PCB cost by 12% versus shielded alternatives. |
Use Scenario: Washing machine main control board requiring water-resistant touch buttons, motor phase control, and temperature monitoring. IC Role / Device Role / Timing Role: System-on-chip managing CAPSENSE™ UI, 3-phase gate driver PWM, and 12-bit ADC for NTC thermistor reading. Use Value: TCPWM kill-signal capability disables inverter gates within 20 ns of overcurrent detection, meeting IEC 60335-1 motor protection requirements. |
| Medical Patient Monitor | IoT Thermostat |
Use Scenario: Portable vital sign monitor with capacitive touch controls, OLED display, and battery operation targeting >24-hour runtime. IC Role / Device Role / Timing Role: Low-power MCU handling CAPSENSE™ button scan, SAR ADC for SpO₂ photodiode signals, and SPI interface to display driver. Use Value: 2.5 µA Deep Sleep with active opamps enables wake-on-touch while preserving analog front-end bias, extending battery life by 3.2× vs. polling-based architectures. |
Use Scenario: Wi-Fi-connected HVAC thermostat with glass-front touch interface, ambient temperature/humidity sensing, and LCD segment display. IC Role / Device Role / Timing Role: CAPSENSE™-enabled UI controller interfacing to Si7021 (I²C), HT16K33 (I²C LED driver), and internal 12-bit ADC for thermistor linearization. Use Value: Three reconfigurable SCBs allow simultaneous I²C sensor reads, I²C display updates, and UART debug logging - no software arbitration or bus contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4046LQI-S412 | Same PSoC™ 4100S architecture but with 32 KB flash, 4 KB SRAM, and no SmartSense auto-tuning firmware support. | Limited to simpler touch interfaces without automatic environmental compensation; requires manual tuning for humidity drift. | Select when BOM cost is prioritized over development time and field reliability under variable moisture conditions. |
| STM32G071KB | Arm® Cortex®-M0+ at 64 MHz, 128 KB flash, 36 KB SRAM, but lacks integrated CAPSENSE™ and programmable analog blocks. | Requires external touch controller and opamp circuitry for equivalent analog functionality, increasing PCB area and component count. | Select when high-speed USB or advanced crypto peripherals are needed, and CAPSENSE™ integration is not required. |
Compared with CY8C4146LQQ-S432, CY8C4046LQI-S412 trades flash capacity and SmartSense for lower unit cost, while STM32G071KB offers higher memory and clock speed but demands external analog components and longer firmware bring-up for touch functionality.
Availability
CY8C4146LQQ-S432 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, medical patient monitors, and IoT thermostats requiring stable component supply across extended product lifecycles.
Supply support for CY8C4146LQQ-S432 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, industrial, and security solutions, with global manufacturing and quality certification to ISO 9001 and IATF 16949.
CY8C4146LQQ-S432 belongs to the PSoC™ 4100S product line, designed specifically for cost-sensitive, space-constrained embedded systems needing integrated capacitive sensing, programmable analog, and low-power operation without external signal conditioning.
FAQ
Does CY8C4146LQQ-S432 support USB connectivity?
No. CY8C4146LQQ-S432 does not include a USB PHY or controller. It provides three reconfigurable serial communication blocks (SCBs) supporting I²C, SPI, and UART only. For USB host/device functionality, external bridge ICs such as CP2102N or integrated alternatives like CY8C6247FDI-D52 must be used.
What is the maximum operating temperature for CY8C4146LQQ-S432?
The CY8C4146LQQ-S432 is rated for industrial temperature range: −40°C to +85°C ambient. This is confirmed in Section 5.2.1 of the official datasheet (002-00122 Rev. *Q), where DC electrical specifications and timing parameters are guaranteed across this full range.
Can the SAR ADC perform simultaneous sampling on multiple channels?
No. The 12-bit SAR ADC supports sequential channel scanning with hardware-based channel sequencing and signal averaging, but lacks true simultaneous sampling across multiple inputs. It achieves up to 1 Msps aggregate throughput, with typical conversion time of 1 µs per channel in single-ended mode.
Is the CAPSENSE™ block certified for IEC 61000-4-6 conducted immunity?
Yes. Infineon's CAPSENSE™ implementation in PSoC™ 4100S devices, including CY8C4146LQQ-S432, meets IEC 61000-4-6 Level 3 (10 V/m, 0.15–80 MHz) when following recommended PCB layout practices (ground plane, guard traces, proper decoupling), as validated in Infineon Application Note AN95147.
CY8C4146LQQ-S432 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b SAR, 16x12b Sigma-Delta; D/A 2x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146LQQ-S432 FAQ
1.How can I place an order for CY8C4146LQQ-S432 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQQ-S432 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C4146LQQ-S432 reliable?
The price and inventory of CY8C4146LQQ-S432 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQQ-S432 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQQ-S432?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQQ-S432 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQQ-S432?
CY8C4146LQQ-S432 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQQ-S432 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C4146LQQ-S432?
For technical support, including CY8C4146LQQ-S432 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQQ-S432 requirements.
6.How does Aetrix verify that CY8C4146LQQ-S432 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQQ-S432 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4146LQQ-S432 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQQ-S432?
All CY8C4146LQQ-S432 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQQ-S432, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C4146LQQ-S432 part is unused and in its original packaging.
Return procedure for CY8C4146LQQ-S432:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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