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Infineon Technologies CY8C29466-24PVXAT
- Part No.:
- CY8C29466-24PVXAT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C29466-24PVXAT.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,115
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Product details
Overview
CY8C29466-24PVXAT from Infineon Technologies is a PSoC™ 1 programmable system-on-chip integrating an 8-bit M8C core, configurable analog and digital blocks, 32 KB flash, 2 KB SRAM, and CapSense® capacitive sensing capability. It operates at up to 24 MHz, supports 5 V operation, and features 28 I/O pins with programmable drive strength and slew rate control. It is used in human-interface applications such as touch-button control panels in industrial HMIs and white-goods user interfaces.
For engineers reviewing the CY8C29466-24PVXAT datasheet, CY8C29466-24PVXAT pinout, CY8C29466-24PVXAT application, or CY8C29466-24PVXAT equivalent, this device offers field-programmable mixed-signal integration, on-chip CapSense® tuning, and single-supply 5 V operation - key selection criteria for cost-sensitive embedded control with touch interface requirements.
Technical Context
The CY8C29466-24PVXAT implements a fully integrated mixed-signal architecture built around the M8C 8-bit RISC CPU, with dedicated hardware for analog signal processing (PGA, ADC, IDAC, opamps) and digital logic (PLD-based UDBs). Its CapSense® subsystem uses mutual-capacitance or self-capacitance scanning with automatic baseline tracking and noise rejection.
It supports dynamic reconfiguration of analog and digital resources at runtime via firmware, enabling flexible sensor interface adaptation and real-time signal path adjustment without external components. The device includes internal voltage regulators, POR, and precision internal oscillators (1–24 MHz), eliminating need for external clock sources in most implementations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit RISC - enables deterministic real-time control with <1 µs interrupt latency and low code footprint. |
| Flash Memory | 32 KB - sufficient for complex CapSense® firmware, state machines, and communication stacks (I²C/UART). |
| SRAM | 2 KB - supports multiple concurrent sensor channels, buffer storage, and runtime variable allocation. |
| Max Clock Speed | 24 MHz - delivers 12 MIPS throughput for responsive touch scanning and real-time feedback generation. |
| I/O Pins | 28 programmable - each configurable as analog input, digital GPIO, CapSense® electrode, or serial interface pin. |
| Operating Voltage | 4.75–5.25 V - compatible with standard 5 V industrial power rails and legacy microcontroller peripherals. |
| CapSense® Channels | Up to 28 - allows full-panel touch interface without external multiplexers or additional controllers. |
Pinout & Package
This device is housed in a 28-pin SOIC package (SOIC-28, 300 mil width), with gull-wing leads, JEDEC MS-012AC compliant, and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main 5 V supply rail; decoupling required within 10 mm of pin for stable analog/digital operation. |
| VSS | Ground reference | Digital and analog ground common point; recommended star grounding for noise-sensitive CapSense® operation. |
| P0[0]–P0[7] | General-purpose I/O / CapSense® electrode | Configurable as GPIO or self-capacitance sensor; internal IDAC supports shield and sense current sourcing. |
| P1[0]–P1[7] | General-purpose I/O / CapSense® electrode | Supports mutual-capacitance scanning when paired with P0 pins; programmable hysteresis and drive mode. |
| P2[0]–P2[7] | General-purpose I/O / Analog input | Can route to PGA, ADC, or comparator; supports 12-bit SAR ADC with internal reference (1.2 V or VDD). |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external resistor. |
| XTAL1/XTAL2 | Clock oscillator terminals | Optional external crystal (1–24 MHz); internal oscillator used by default to reduce BOM count. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Includes two opamps, two PGAs, one 12-bit SAR ADC, and two IDACs - enables sensor signal conditioning without external amplifiers or ADCs. |
| CapSense® CSD v2.0 | Hardware-accelerated capacitive sensing engine with auto-tuning, baseline tracking, and noise immunity - reduces firmware overhead and improves touch robustness. |
| Universal Digital Blocks (UDBs) | Eight PLD-based logic units supporting PWM, counters, UART, I²C, and custom state machines - eliminates need for discrete glue logic or peripheral ICs. |
| On-chip Debug Interface | Single-wire debug (SWD) with full breakpoint and trace support - enables in-system firmware development and CapSense® tuning without emulator hardware. |
| Industrial Temperature Range | –40 °C to +85 °C - qualified for use in factory automation panels, HVAC controls, and appliance interfaces. |
Applications
| Home Appliance Control Panel | Industrial HMI Touch Interface |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on washing machine or oven front panel, operating in humid, high-noise environments. IC Role / Device Role / Timing Role: Primary system controller and CapSense® acquisition engine; manages button debounce, LED feedback timing, and I²C communication to main MCU. Use Value: Single-chip solution replaces MCU + dedicated touch controller + analog front-end, reducing PCB area by 35% and component count by ≥7 parts. |
Use Scenario: Operator interface on PLC-mounted control box with EMI exposure from nearby motor drives and solenoids. IC Role / Device Role / Timing Role: Standalone touch interface processor handling real-time sensor scan, noise filtering, and status reporting via UART to host controller. Use Value: Hardware-based CapSense® noise rejection achieves >40 Vpp common-mode immunity, meeting IEC 61000-4-3 Level 3 radiated immunity without shielding. |
| Smart Power Outlet with Touch | Medical Device Keypad Interface |
Use Scenario: Tamper-resistant, waterproof touch surface on energy-monitoring outlet with LED status indicators and relay control. IC Role / Device Role / Timing Role: Dedicated touch and indicator controller; executes secure local logic for button hold detection and LED dimming sequences. Use Value: Internal 5 V regulator and isolated CapSense® routing enable direct connection to mains-isolated 5 V rail, avoiding optocoupler-based level shifting. |
Use Scenario: Sterilizable, glove-friendly keypad on infusion pump or diagnostic equipment requiring tactile feedback and low-power standby. IC Role / Device Role / Timing Role: Low-power CapSense® wake-up controller; maintains sub-1 µA sleep current while monitoring for touch events. Use Value: Integrated low-power oscillator and deep-sleep mode with pin-triggered wake-up reduce average system current to 2.3 µA, extending battery life beyond 5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C21534-24LFXIT | 16 KB flash, 1 KB SRAM, 24-pin QFN, no internal POR - requires external reset circuit and lacks CapSense® CSD v2.0 hardware acceleration. | Suitable only for simpler touch interfaces with ≤12 electrodes and no stringent EMI requirements. | Select when BOM cost reduction outweighs CapSense® performance and design flexibility needs. |
| CY8C22545-24PVXI | Same 32 KB/2 KB memory, but 48-pin TQFP package and enhanced analog routing - adds second PGA and dual-slope ADC, increasing analog channel density. | Better suited for multi-sensor systems (e.g., touch + temperature + proximity) where analog resource concurrency is critical. | Choose when expanding beyond pure touch into hybrid analog-sensing applications without changing firmware architecture. |
Compared with CY8C21534-24LFXIT, the CY8C29466-24PVXAT provides higher memory, stronger CapSense® hardware, and SOIC packaging for through-hole prototyping; versus CY8C22545-24PVXI, it trades pin count and analog expansion for lower cost and smaller footprint in dedicated touch-only designs.
Availability
CY8C29466-24PVXAT is available at Aetrix Electronics and suitable for industrial HMI, home appliance control, smart power outlets, and medical keypad interfaces requiring stable component supply and long-term manufacturability.
Supply support for CY8C29466-24PVXAT 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 ICs, security solutions, and embedded controllers, with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.
This part belongs to the legacy PSoC™ 1 family, designed specifically for cost-optimized, highly integrated embedded control with programmable analog and digital peripherals - targeting applications where rapid customization and minimal external components are essential.
FAQ
What development tools are required to program the CY8C29466-24PVXAT?
The CY8C29466-24PVXAT is programmed using PSoC™ Designer 5.4 software, which provides graphical configuration of analog/digital blocks and CapSense® parameters. Programming is performed via MiniProg1 or MiniProg3 programmer/debugger using the SWD interface. No external debugger hardware is needed for basic firmware loading and CapSense® tuning.
Does the device support true hardware-based CapSense® mutual capacitance scanning?
Yes - the CY8C29466-24PVXAT implements CapSense® CSD v2.0 with dedicated hardware scan engine supporting both self- and mutual-capacitance modes. Mutual-capacitance scanning uses P0 and P1 pins simultaneously, achieving >100 Hz full-panel scan rates with built-in noise cancellation and automatic electrode balancing.
Can the internal 24 MHz oscillator be used as the system clock without calibration?
Yes - the internal IMO (Internal Main Oscillator) is factory-trimmed to ±2% accuracy across voltage and temperature. It is enabled by default at power-on and requires no external components or runtime calibration, making it suitable for most timing-critical applications including UART communication at 115.2 kbps with <1% error.
Is there hardware support for low-power operation during touch-sleep mode?
Yes - the device supports Deep Sleep mode with current consumption of 1.2 µA typical, retaining SRAM contents and waking on CapSense® interrupt or pin change. The internal low-power oscillator (ILO) remains active to maintain timing for periodic wake-up scans, enabling battery-powered operation for multi-year deployments.
CY8C29466-24PVXAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™1 CY8C29xxx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.25V
- Data Converters:
- A/D 12x14b; D/A 4x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C29466-24PVXAT FAQ
1.How can I place an order for CY8C29466-24PVXAT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C29466-24PVXAT 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 CY8C29466-24PVXAT reliable?
The price and inventory of CY8C29466-24PVXAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C29466-24PVXAT is usually 5 days.
3.What payment methods are accepted for CY8C29466-24PVXAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C29466-24PVXAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C29466-24PVXAT?
CY8C29466-24PVXAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C29466-24PVXAT 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 CY8C29466-24PVXAT?
For technical support, including CY8C29466-24PVXAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C29466-24PVXAT requirements.
6.How does Aetrix verify that CY8C29466-24PVXAT is sourced from the original manufacturer or authorized distributors?
All CY8C29466-24PVXAT 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 CY8C29466-24PVXAT meets industry standards.
7.What is the process for return or replacement of CY8C29466-24PVXAT?
All CY8C29466-24PVXAT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C29466-24PVXAT, 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 CY8C29466-24PVXAT part is unused and in its original packaging.
Return procedure for CY8C29466-24PVXAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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