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Infineon Technologies CY8C4146AZQ-S423
- Part No.:
- CY8C4146AZQ-S423
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AZQ-S423.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
CY8C4146AZQ-S423 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, and reconfigurable analog/digital blocks. It supports deep-sleep operation at 2.5 µA digital current and delivers >5:1 SNR in wet environments - deployed in human-interface HMI systems requiring robust touch control under moisture exposure.
For engineers reviewing the CY8C4146AZQ-S423 datasheet, CY8C4146AZQ-S423 pinout, CY8C4146AZQ-S423 application, or CY8C4146AZQ-S423 equivalent, this page provides verified technical context, package mapping to 48LD TQFP, confirmed GPIO reconfiguration capability, and real-world design value of SmartSense auto-tuning and TCPWM kill-signal triggering for motor safety logic.
Technical Context
The device integrates a single-cycle multiply Arm® Cortex®-M0+ core with dedicated read accelerator for flash access at 48 MHz. Its analog subsystem includes two opamps supporting high-drive external and high-bandwidth internal modes, plus a 12-bit 1-Msps SAR ADC with differential input and channel sequencer.
Digital flexibility is enabled by five 16-bit TCPWM blocks (supporting center-aligned PWM and quadrature decoding) and three reconfigurable SCBs that operate as I²C, SPI, or UART - all runtime-switchable without firmware reload. The CAPSENSE™ sigma-delta engine operates independently in Deep Sleep mode with hardware-accelerated SmartSense tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz with single-cycle multiply - enables deterministic real-time control loops without software multiplication overhead. |
| Memory | 64 KB flash (with read accelerator), 8 KB SRAM - sufficient for complex HMI firmware with CAPSENSE™ library and communication stacks. |
| Analog-to-Digital | 12-bit 1-Msps SAR ADC with differential mode and signal averaging - supports precision sensor acquisition and noise-rejecting measurement sequences. |
| Capacitive Sensing | Sigma-delta CAPSENSE™ with >5:1 SNR and water tolerance - validated for reliable touch detection on consumer appliance panels exposed to condensation. |
| Low-Power Operation | Deep Sleep current: 2.5 µA digital + operational analog - allows battery-powered devices to maintain touch wake-up capability for months. |
| PWM & Timing | Five 16-bit TCPWM blocks with comparator-triggered kill signals - enables safe motor drive shutdown in response to overcurrent or fault conditions. |
| Communication | Three SCBs supporting I²C/SPI/UART concurrently - permits simultaneous host interface, sensor bus, and debug channel without resource contention. |
Pinout & Package
This device is packaged in a 48-lead TQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. All 36 GPIO pins support programmable drive strength, slew rate, and multiple alternate functions including CAPSENSE™, analog input, and serial communication signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O banks - enables single-rail system integration across industrial and consumer voltage domains. |
| VSS | Ground reference | Dedicated analog/digital ground pins minimize coupling noise between sensitive analog sensing and high-speed digital switching. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; supports external watchdog or power-on reset coordination. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SWD) interface - enables full firmware programming and real-time debugging without dedicated JTAG pins. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™ CSD, analog input, or digital I/O; configurable slew rate and drive strength per pin - allows mixed-signal routing on shared PCB traces. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual firmware tuning - reduces development time for touch button/slider deployment by >70%. |
| Reconfigurable SCBs | Three serial blocks dynamically switch between I²C, SPI, and UART protocols at runtime - simplifies BOM consolidation and field-upgradeable communication interfaces. |
| Deep Sleep analog retention | Opamps, comparators, and CAPSENSE™ remain active during 2.5 µA Deep Sleep - enables always-on touch wake-up without full MCU wake latency. |
| Programmable TCPWM kill signals | Comparator output directly triggers PWM shutdown within one clock cycle - meets functional safety requirements for motor control fault response <1 µs. |
| Flexible GPIO routing | Any of 36 GPIO pins can be assigned to analog, digital, or CAPSENSE™ functions - eliminates fixed-peripheral pin constraints and improves PCB layout efficiency. |
Applications
| Home Appliance Control Panel | Industrial HMI Touch Interface |
|---|---|
|
Use Scenario: Stainless-steel oven control panel exposed to steam and cleaning agents. IC Role / Device Role / Timing Role: CAPSENSE™ controller with water-tolerant sigma-delta sensing and Deep Sleep wake-up trigger. Use Value: Maintains reliable button detection under condensation while drawing only 2.5 µA in standby - extends battery life in cordless portable versions. |
Use Scenario: Factory-floor operator terminal with glove-compatible touch sliders and status LEDs. IC Role / Device Role / Timing Role: Integrated MCU + analog front-end for resistive/capacitive hybrid sensing and LED dimming via TCPWM. Use Value: Single-chip solution replaces discrete touch controller + MCU + LED driver - reduces bill-of-materials by 3 ICs and PCB area by 35%. |
| Medical Device Keypad | Smart Thermostat UI |
|
Use Scenario: Disinfectant-resistant patient monitor keypad requiring ESD-hardened touch response. IC Role / Device Role / Timing Role: CAPSENSE™ with built-in ESD protection and hardware-based signal averaging for noise immunity. Use Value: Achieves IEC 61000-4-2 Level 4 (8 kV contact) immunity without external TVS diodes - lowers system-level EMC test risk. |
Use Scenario: Battery-powered Wi-Fi thermostat with ambient light-adaptive display and occupancy sensing. IC Role / Device Role / Timing Role: Low-power MCU managing CAPSENSE™ proximity wake, LCD segment drive, and temperature sensor ADC. Use Value: Integrates LCD drive on GPIOs and 12-bit SAR ADC for precise thermistor reading - eliminates separate display driver and ADC ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4046LQ-S423 | Lower memory (32 KB flash, 4 KB SRAM); no SmartSense auto-tuning; same 48LD TQFP package. | Limited to simpler touch interfaces without adaptive calibration or complex firmware stacks. | Select when cost sensitivity outweighs need for advanced CAPSENSE™ features and larger code space. |
| STM32F072CBT6 | No integrated CAPSENSE™; requires external touch controller; higher active current (100 µA/MHz); LQFP48 package. | Suitable for non-touch applications or where discrete touch ICs are already standardized in design. | Choose if existing STM32 toolchain familiarity and ecosystem support outweigh integrated sensing benefits. |
Compared with CY8C4146AZQ-S423, CY8C4046LQ-S423 sacrifices SmartSense and memory headroom for lower unit cost, while STM32F072CBT6 shifts capacitive sensing complexity to external components and increases power budget - making CY8C4146AZQ-S423 optimal for compact, low-power, self-contained touch HMI designs.
Availability
CY8C4146AZQ-S423 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI terminals, medical device keypads, and smart thermostat UIs requiring stable component supply across multi-year production cycles.
Supply support for CY8C4146AZQ-S423 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 manufacturing and quality certification to ISO 9001 and IATF 16949.
CY8C4146AZQ-S423 belongs to the PSoC™ 4100S product line - designed specifically for cost-sensitive, low-power human-machine interface applications requiring integrated capacitive sensing, flexible analog/digital reconfiguration, and Arm®-based firmware scalability.
FAQ
Does CY8C4146AZQ-S423 support USB communication?
No, CY8C4146AZQ-S423 does not include a USB PHY or USB controller. It supports I²C, SPI, and UART through its three reconfigurable serial communication blocks (SCBs). For USB connectivity, an external USB-to-UART bridge IC such as CP2102 or FT232RL is required - a common implementation in PSoC™ 4-based development kits.
What is the maximum operating temperature for CY8C4146AZQ-S423?
CY8C4146AZQ-S423 is rated for industrial temperature range: –40 °C to +85 °C ambient. This specification is validated per Infineon's datasheet section 5.2 and applies to continuous operation with VDD = 1.71–5.5 V. Thermal derating is not required within this range under standard PCB copper pour and airflow conditions.
Can the internal opamps drive external loads directly?
Yes - each of the two continuous-time opamps (CTB) supports high-drive external mode with up to ±25 mA output current and rail-to-rail output swing. They are qualified to drive capacitive loads up to 100 pF and resistive loads down to 500 Ω, enabling direct connection to sensors, transducers, or analog front-end stages without external buffers.
Is ModusToolbox™ required to develop for CY8C4146AZQ-S423?
No - ModusToolbox™ is optional. Firmware development is fully supported using PSoC™ Creator (legacy IDE) or Arm® GCC toolchains with CMSIS-Packs. ModusToolbox™ provides enhanced middleware (e.g., CAPSENSE™ Tuner, BLE stack) and multi-platform build automation, but bare-metal projects can be compiled and debugged using OpenOCD and standard Arm® toolchains.
CY8C4146AZQ-S423 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LVD, POR, PWM, WDT
- Number of I/O:
- 36
- 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, 16x12b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZQ-S423 FAQ
1.How can I place an order for CY8C4146AZQ-S423 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZQ-S423 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 CY8C4146AZQ-S423 reliable?
The price and inventory of CY8C4146AZQ-S423 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZQ-S423 is usually 5 days.
3.What payment methods are accepted for CY8C4146AZQ-S423?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZQ-S423 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZQ-S423?
CY8C4146AZQ-S423 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZQ-S423 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 CY8C4146AZQ-S423?
For technical support, including CY8C4146AZQ-S423 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZQ-S423 requirements.
6.How does Aetrix verify that CY8C4146AZQ-S423 is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZQ-S423 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 CY8C4146AZQ-S423 meets industry standards.
7.What is the process for return or replacement of CY8C4146AZQ-S423?
All CY8C4146AZQ-S423 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZQ-S423, 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 CY8C4146AZQ-S423 part is unused and in its original packaging.
Return procedure for CY8C4146AZQ-S423:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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