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Infineon Technologies CY8C29466-24SXI
- Part No.:
- CY8C29466-24SXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CY8C29466-24SXI.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,494
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Product details
Overview
CY8C29466-24SXI from Infineon Technologies (formerly Cypress) is a programmable mixed-signal System-on-Chip (SoC) integrating an M8C 8-bit Harvard-architecture CPU, 32 KB flash, 2 KB SRAM, 12 analog PSoC blocks, and 16 digital PSoC blocks. It operates from 3.0 V to 5.25 V (or down to 1.0 V with on-chip switch-mode pump), supports industrial temperature range (–40 °C to +85 °C), and delivers up to 24 MHz core speed - used in embedded sensor interface and motor control subsystems requiring configurable analog/digital peripherals.
For engineers reviewing the CY8C29466-24SXI datasheet, CY8C29466-24SXI pinout, CY8C29466-24SXI application, or CY8C29466-24SXI equivalent, key selection criteria include its 24 MHz M8C core timing accuracy (±5% IMO), 14-bit ADC capability, flexible GPIO drive modes (25 mA sink), and PSoC Designer-based reconfigurable analog/digital block architecture for rapid peripheral customization.
Technical Context
The device implements a fixed-function M8C CPU core with interrupt controller (17 vectors), sleep/watchdog timers, and multiple clock sources: ±5% internal main oscillator (IMO) at 24/48 MHz, 32.768 kHz ECO option with PLL for crystal-accurate system clock, and low-power ILO for RTC/sleep functions. Clock dividers enable precise peripheral timing across variable system loads.
Analog functionality is delivered via 12 rail-to-rail PSoC blocks supporting ADC (up to 14-bit), DAC (up to 9-bit), PGA, comparators, and programmable filters; digital resources include 16 blocks configurable as 8–32-bit timers, PWMs, UARTs (up to four full-duplex), SPI masters/slaves, and CRC/PRS modules - all interconnected via global digital/analog busing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| M8C Core Speed | 24 MHz maximum - enables 4 MIPS real-time execution for deterministic control loops. |
| Flash Memory | 32 KB with 50,000 erase/write cycles - supports field firmware updates and partial reprogramming. |
| SRAM | 2 KB static RAM - sufficient for stack, variables, and real-time data buffering in compact embedded systems. |
| Analog Blocks | 12 configurable blocks - provide ADC (14-bit), DAC (9-bit), PGA, comparator, and filter functions without external components. |
| Digital Blocks | 16 programmable blocks - combine to form UARTs, SPI, PWMs, timers, CRC, and PRS with flexible bit-width and routing. |
| Operating Voltage | 3.0 V to 5.25 V standard; extends to 1.0 V using integrated switch-mode pump - enables ultra-low-power wake-up modes. |
| Temperature Range | –40 °C to +85 °C industrial grade - validated for use in automotive body electronics and industrial HMI. |
Pinout & Package
Package: 28-pin SOIC (Small Outline Integrated Circuit), 300 mil width, RoHS-compliant, JEDEC MS-012AC. Pinout validated per CY8C29466-24SXI datasheet Rev. AD, Page 10 ("28-Pin Part Pinout").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 3.0–5.25 V; powers core, analog blocks, and digital logic - requires local decoupling. |
| VSS | Ground reference | Common return path for all analog/digital circuits; must be low-impedance for noise-sensitive ADC operation. |
| XIN / XOUT | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or accurate 24 MHz system clock when paired with PLL. |
| P0[0]–P0[7] | Port 0 general-purpose I/O | Configurable as analog inputs (8 channels), digital I/O, or analog outputs (4 channels); support interrupt-on-change. |
| P1[0]–P1[7] | Port 1 general-purpose I/O | Full GPIO functionality including pull-up/down, open-drain, strong drive (10 mA source / 25 mA sink). |
| RESET | Active-low reset input | Asynchronous hardware reset; debounced internally; compatible with push-button or supervisor IC assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Blocks | 12 independent blocks enabling simultaneous high-resolution ADC, PGA gain adjustment, and comparator threshold setting - eliminates need for external signal-conditioning ICs. |
| Reprogrammable Digital Peripherals | 16 digital blocks combinable into custom UART, SPI, PWM, or timer configurations - avoids fixed-function peripheral limitations in evolving designs. |
| On-Chip Switch-Mode Pump (SMP) | Generates regulated 1.0 V supply from VDD - enables sub-1.8 V logic operation and ultra-low-power sleep states without external DC-DC converter. |
| EEPROM Emulation | Up to 2 KB of nonvolatile storage emulated in flash - supports parameter retention and field calibration without external EEPROM. |
| I²C Master/Slave/Multi-Master | Hardware I²C interface operating up to 400 kHz - simplifies communication with sensors, displays, and PMICs using standard protocol stack. |
Applications
| Motor Control Interface | Industrial Sensor Hub |
|---|---|
|
Use Scenario: Compact BLDC motor controller with hall-effect feedback and current sensing in HVAC blowers. IC Role / Device Role / Timing Role: Configures dual 16-bit PWMs with dead-band, reads analog current/voltage via 12-bit ADC, and executes commutation logic in real time. Use Value: Eliminates discrete op-amps, comparators, and PWM generators - reduces BOM count by ≥7 components while maintaining <1 µs timing jitter. |
Use Scenario: Multi-sensor node aggregating temperature, pressure, and humidity readings for predictive maintenance gateways. IC Role / Device Role / Timing Role: Serves as central analog front-end and data preprocessor - digitizes 8-channel analog inputs and formats I²C/SPI output packets. Use Value: Integrates PGA gain scaling, 14-bit ADC conversion, and CRC-checked packet assembly - achieves ±0.1% measurement linearity without external calibration. |
| Capacitive Touch HMI | Programmable Power Sequencer |
|
Use Scenario: Appliance control panel with 12-button capacitive touch overlay and LED status feedback. IC Role / Device Role / Timing Role: Implements CapSense® charge-transfer sensing on P0/P1 pins and drives 4 analog outputs for LED dimming PWM. Use Value: Uses dedicated analog blocks for noise-immune touch detection and synchronized LED brightness control - achieves >60 dB SNR in noisy 50/60 Hz environments. |
Use Scenario: FPGA or ASIC power management subsystem requiring staggered 1.2 V / 1.8 V / 3.3 V rail sequencing with fault monitoring. IC Role / Device Role / Timing Role: Monitors voltage rails via analog comparators, triggers GPIO-controlled MOSFET gates, and logs faults in SRAM with timestamp. Use Value: Replaces discrete supervisors and sequencers - provides programmable delay resolution of 1 ms and automatic retry on undervoltage recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C29866-24PVXIT | Same PSoC 1 architecture but in 44-pin TQFP package with additional GPIOs and enhanced analog routing flexibility. | Preferred for designs requiring >20 GPIOs or dual independent analog signal chains (e.g., dual-sensor differential measurement). | Select when board layout allows larger footprint and higher I/O count is needed - no firmware changes required. |
| CY8C3246PVI-122 | PSoC 3 generation: ARM Cortex-M3 core, 24 MHz, 32 KB flash, but lacks SMP and has different analog block structure (SC/CT blocks vs. switched-capacitor). | Better suited for C-language firmware development and USB connectivity; less optimal for ultra-low-voltage analog sensing below 1.8 V. | Choose for new designs prioritizing toolchain maturity and ARM ecosystem - not drop-in compatible due to architectural divergence. |
Compared with CY8C29466-24SXI, CY8C29866-24PVXIT offers expanded I/O and routing without changing core functionality, while CY8C3246PVI-122 shifts to ARM-based development with trade-offs in analog precision and sub-1.8 V operation - making the original ideal for cost-sensitive, analog-intensive legacy-compatible designs.
Availability
CY8C29466-24SXI is available at Aetrix Electronics and suitable for motor control interface, industrial sensor hub, capacitive touch HMI, and programmable power sequencer applications requiring stable component supply and long-term production continuity.
Supply support for CY8C29466-24SXI 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 acquired Cypress Semiconductor in 2020 and maintains the full PSoC portfolio, delivering high-reliability semiconductor solutions for automotive, industrial, and IoT markets with global manufacturing and quality systems.
CY8C29466 belongs to the PSoC 1 family - designed specifically for cost-sensitive embedded systems requiring field-programmable analog and digital peripherals in a single chip, with emphasis on rapid prototyping and analog signal integrity.
FAQ
Is CY8C29466-24SXI pin-compatible with other CY8C29x66 variants?
Yes - all CY8C29x66 devices in the 28-pin SOIC package share identical pinouts and electrical characteristics. Differences are limited to flash size, SRAM allocation, and analog/digital block counts, which are configured in firmware and do not affect PCB layout or interconnect.
Does CY8C29466-24SXI support in-system programming (ISP) after soldering?
Yes - it supports In-System Serial Programming (ISSP) via dedicated PSoC pins (e.g., SCLK, SDAT, RESET) using MiniProg1/MiniProg3 programmers. No bootloader code is required; programming occurs directly through the hardware interface at voltages from 3.0 V to 5.25 V.
What development tools are required to configure analog blocks on this device?
PSoC Designer v5.4 (free download from Infineon) is mandatory - it provides drag-and-drop analog block configuration, automatic API generation, and real-time simulation of PGA gain, ADC resolution, and filter response before hardware deployment.
Can the internal 24 MHz oscillator meet timing-critical UART baud rate requirements?
Yes - the ±5% IMO tolerance is sufficient for standard UART rates up to 115.2 kbps at 3.3 V/25 °C. For higher accuracy or wide-temperature operation, use the 32.768 kHz ECO with PLL to generate a crystal-referenced 24 MHz clock, reducing baud error to <0.1%.
CY8C29466-24SXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Series:
- PSOC™1 CY8C29xxx
- Packaging:
- Tube
- Product Status:
- Active
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C29466-24SXI FAQ
1.How can I place an order for CY8C29466-24SXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C29466-24SXI 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 CY8C29466-24SXI reliable?
The price and inventory of CY8C29466-24SXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C29466-24SXI is usually 5 days.
3.What payment methods are accepted for CY8C29466-24SXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C29466-24SXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C29466-24SXI?
CY8C29466-24SXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C29466-24SXI 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 CY8C29466-24SXI?
For technical support, including CY8C29466-24SXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C29466-24SXI requirements.
6.How does Aetrix verify that CY8C29466-24SXI is sourced from the original manufacturer or authorized distributors?
All CY8C29466-24SXI 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 CY8C29466-24SXI meets industry standards.
7.What is the process for return or replacement of CY8C29466-24SXI?
All CY8C29466-24SXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C29466-24SXI, 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 CY8C29466-24SXI part is unused and in its original packaging.
Return procedure for CY8C29466-24SXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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