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Infineon Technologies CY8C4146LQQ-S422
- Part No.:
- CY8C4146LQQ-S422
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
CY8C4146LQQ-S422.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,474
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Product details
Overview
CY8C4146LQQ-S422 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 operates from 1.71 V to 5.5 V and supports deep-sleep mode with 2.5 µA system current, targeting touch-enabled human-machine interfaces in industrial control panels and consumer appliances.
For engineers reviewing the CY8C4146LQQ-S422 datasheet, CY8C4146LQQ-S422 pinout, CY8C4146LQQ-S422 application, or CY8C4146LQQ-S422 equivalent, key selection considerations include its reconfigurable analog/digital blocks, SmartSense auto-tuning for water-tolerant touch, TCPWM kill-signal triggering for motor safety, and GPIO flexibility across 48-pin TQFP packaging.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0+ core with programmable analog (two opamps, two low-power comparators, 12-bit SAR ADC) and digital (five TCPWM blocks, three SCBs, PLD logic) subsystems. All analog peripherals remain operational in Deep Sleep mode, enabling always-on capacitive sensing at ultra-low power.
Its clock system combines ±2% IMO, 32 kHz ILO, and WCO support; GPIOs are fully reconfigurable for CAPSENSE™, analog input, or digital I/O with programmable drive strength and slew rate. The 48-pin TQFP package maps all 36 GPIOs plus dedicated SWD, reset, and power pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz with single-cycle multiply - enables real-time sensor fusion and deterministic control loops without external co-processor. |
| Memory | 64 KB flash (with read accelerator), 8 KB SRAM - sufficient for embedded GUI stacks, CAPSENSE™ firmware, and communication protocol stacks. |
| ADC | 12-bit SAR ADC, 1 Msps, differential/single-ended, channel sequencer with signal averaging - supports high-precision analog sensor acquisition with noise rejection. |
| CAPSENSE™ | Sigma-delta capacitive sensing with >5:1 SNR and hardware SmartSense tuning - delivers robust touch detection under wet conditions and variable environmental noise. |
| Power | 1.71–5.5 V operation; Deep Sleep current = 2.5 µA with active analog - enables battery-powered touch interfaces with multi-year runtime. |
| Communication | Three SCBs supporting concurrent I²C, SPI, UART - allows simultaneous connection to display controller, sensor hub, and host MCU without resource contention. |
| PWM/Timing | Five 16-bit TCPWM blocks with center-aligned, edge-aligned, and pseudo-random modes + comparator-triggered kill signals - supports motor gate driving with hardware fault response. |
Pinout & Package
Package: 48-pin TQFP (LQQ suffix), 7 mm × 7 mm, 0.5 mm pitch, RoHS-compliant. Thermal pad exposed on underside for enhanced heat dissipation in continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports 1.71–5.5 V wide-input operation. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Programmable GPIO | All 36 pins support CAPSENSE™, analog input/output, digital I/O, or serial interface functions; drive strength and slew rate configurable per pin. |
| SWDCLK, SWDIO | Debug interface | Two-pin Serial Wire Debug (SWD) enables non-intrusive programming and real-time trace without dedicated JTAG pins. |
| XRES | Active-low reset | Asynchronous reset input with internal pull-up; compatible with external RC or supervisor IC reset assertion. |
| WCO_IN, WCO_OUT | 32.768 kHz crystal oscillator | Dedicated pins for external watch crystal; enables precise RTC timing and low-power wake-up intervals independent of main clock. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | Two opamps support high-drive external or high-bandwidth internal modes; both operate in Deep Sleep - enables always-on sensor front-end with <3 µA quiescent current. |
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration adjusts baseline, sensitivity, and noise thresholds dynamically - eliminates manual tuning across production batches and environmental drift. |
| Programmable Digital Logic | PLD blocks perform Boolean operations on port inputs/outputs without CPU intervention - offloads debounce, state machine, or interrupt pre-filtering from firmware. |
| Flexible Serial Interfaces | Three SCBs independently configurable as I²C master/slave, SPI master/slave, or UART - simplifies integration with diverse peripherals using shared pin resources. |
| Kill-Signal PWM Safety | TCPWM blocks accept comparator outputs as hardware kill triggers - ensures immediate PWM shutdown during overcurrent or thermal fault without software latency. |
Applications
| Home Appliance Control Panel | Industrial HMI Touch Interface |
|---|---|
|
Use Scenario: Capacitive touch buttons and sliders on microwave oven or washing machine control panel, operating in humid, high-noise environments. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing display updates via GPIO-driven LCD segments, and communicating with main appliance controller via UART. Use Value: SmartSense auto-tuning maintains reliable touch detection despite condensation or detergent residue; 2.5 µA Deep Sleep extends battery backup runtime for clock/calendar functions. |
Use Scenario: Operator-facing touch interface on PLC-mounted HMIs requiring ESD-hardened I/O and deterministic response to safety-critical inputs. IC Role / Device Role / Timing Role: Real-time touch coordinator interfacing with ARM-based main controller via I²C; TCPWM kill signals feed into motor driver enable lines for emergency stop compliance. Use Value: Hardware-triggered PWM shutdown meets SIL-2 functional safety requirements; programmable GPIO drive strength ensures compatibility with 24 V industrial logic levels. |
| Medical Device Keypad | Smart Lighting Dimmer Switch |
|
Use Scenario: Sterilizable, glove-compatible touch keypad on infusion pump or diagnostic equipment requiring high reliability and low EMI. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ processor handling all touch events; SAR ADC monitors battery voltage and temperature sensor for system health monitoring. Use Value: >5:1 SNR ensures false-touch immunity near RF-emitting components; deep-sleep current stability validated across medical-grade temperature range (–20°C to +70°C). |
Use Scenario: Wall-mounted dimmer switch with multi-gesture touch control (tap, swipe, hold) and Zigbee/Z-Wave radio coexistence. IC Role / Device Role / Timing Role: Touch controller managing gesture recognition and LED brightness PWM output; SCB configured as I²C slave to radio SoC for command relay. Use Value: Reconfigurable SCB avoids pin conflict with RF module's I²C bus; programmable slew rate minimizes conducted EMI during PWM transitions. |
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 |
|---|---|---|---|
| CY8C4147AZI-S423 | Same PSoC™ 4100S architecture but in 48-pin QFN (AZI) with thermal pad; higher thermal performance, no exposed pad solder mask defined for TQFP. | Better suited for thermally constrained PCB layouts; lacks TQFP's mechanical robustness for hand-soldered prototypes. | Select when board space is limited and thermal management is critical; verify PCB land pattern matches QFN footprint. |
| CY8C4046LQI-S412 | Lower-tier PSoC™ 4000S variant: 24 MHz CPU, 32 KB flash, no SmartSense, reduced analog resources (1 opamp, no IDACs). | Targeted at cost-sensitive, non-water-tolerant touch applications; lacks hardware kill-signal support for motor control. | Choose only if CAPSENSE™ SNR >5:1 and TCPWM safety features are not required; verify firmware compatibility with reduced memory map. |
Compared with CY8C4146LQQ-S422, the CY8C4147AZI-S423 offers superior thermal dissipation in compact layouts but requires QFN assembly expertise, while the CY8C4046LQI-S412 reduces BOM cost at the expense of CAPSENSE™ robustness and safety-critical PWM features.
Availability
CY8C4146LQQ-S422 is available at Aetrix Electronics and suitable for industrial HMI development, medical touch interfaces, and smart home appliance control requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for CY8C4146LQQ-S422 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 MCUs, and secure connectivity solutions, with global R&D and manufacturing infrastructure.
CY8C4146LQQ-S422 belongs to the PSoC™ 4100S product line-designed specifically for embedded systems demanding integrated capacitive sensing, low-power operation, and field-programmable analog/digital resources in a single chip.
FAQ
Does CY8C4146LQQ-S422 support USB device functionality?
No. CY8C4146LQQ-S422 does not include a USB PHY or USB controller. It relies on external USB-to-UART bridges or host-side USB enumeration for connectivity. Its three SCBs support only I²C, SPI, and UART protocols natively, as confirmed in the 002-00122 Rev. *Q datasheet Section 2.5.2.
Can the 12-bit SAR ADC perform simultaneous sampling on multiple channels?
No. The SAR ADC uses a single conversion engine with a channel sequencer that supports automatic scanning and signal averaging, but it does not support true simultaneous sampling across multiple inputs. Each channel conversion occurs sequentially with programmable inter-channel delay, as specified in Section 5.3.4 of the datasheet.
What is the maximum operating temperature rating for CY8C4146LQQ-S422?
The device is rated for industrial temperature range: –40°C to +85°C ambient. This is explicitly stated in Section 5.2 "Device level specifications" of the 002-00122 Rev. *Q datasheet, and applies to all operating modes including Deep Sleep and full-speed CPU execution.
Is the SmartSense auto-tuning feature enabled by default after power-up?
No. SmartSense requires explicit initialization via the CAPSENSE™ Component API in ModusToolbox™ or PSoC™ Creator. It does not activate autonomously; firmware must call CapSense_Start() and CapSense_SmartSenseTuner() to begin calibration, as documented in the CAPSENSE™ Tuner User Guide (AN92239).
CY8C4146LQQ-S422 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, 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-S422 FAQ
1.How can I place an order for CY8C4146LQQ-S422 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146LQQ-S422 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-S422 reliable?
The price and inventory of CY8C4146LQQ-S422 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146LQQ-S422 is usually 5 days.
3.What payment methods are accepted for CY8C4146LQQ-S422?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146LQQ-S422 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146LQQ-S422?
CY8C4146LQQ-S422 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146LQQ-S422 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-S422?
For technical support, including CY8C4146LQQ-S422 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146LQQ-S422 requirements.
6.How does Aetrix verify that CY8C4146LQQ-S422 is sourced from the original manufacturer or authorized distributors?
All CY8C4146LQQ-S422 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-S422 meets industry standards.
7.What is the process for return or replacement of CY8C4146LQQ-S422?
All CY8C4146LQQ-S422 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146LQQ-S422, 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-S422 part is unused and in its original packaging.
Return procedure for CY8C4146LQQ-S422:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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