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Infineon Technologies CY8C29466-24PXI
- Part No.:
- CY8C29466-24PXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C29466-24PXI.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 28DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CY8C29466-24PXI from Infineon Technologies (formerly Cypress Semiconductor) is a programmable PSoC® 1 mixed-signal system-on-chip featuring an M8C 8-bit Harvard-architecture CPU running at up to 24 MHz, 32 KB flash, 2 KB SRAM, and configurable analog/digital 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 integrates up to four UARTs, multiple PWMs, and 12 analog PSoC blocks - used in embedded motor control, sensor interface, and industrial HMI systems.
For engineers reviewing the CY8C29466-24PXI datasheet, CY8C29466-24PXI pinout, CY8C29466-24PXI application, or CY8C29466-24PXI equivalent, key selection criteria include its 24 MHz M8C core speed, ±5% internal oscillator tolerance (±2.5% at 0–70 °C), 25-mA GPIO sink capability, 14-bit ADC support via decimator, and ISSP-enabled in-system programming for rapid firmware iteration in resource-constrained designs.
Technical Context
The CY8C29466-24PXI implements a fixed-function digital architecture built around 16 programmable 8-bit digital PSoC blocks and 12 rail-to-rail analog PSoC blocks, interconnected via global digital/analog buses. Its M8C core executes instructions from flash with 4 MIPS throughput and supports 17 interrupt vectors for deterministic real-time response.
Clocking is managed by multiple sources: a ±5% 24/48-MHz internal main oscillator (IMO), a 32.768-kHz external crystal oscillator (ECO) for RTC, and a low-power 32-kHz internal low-speed oscillator (ILO) for sleep/WDT. The device uses a dedicated decimator block to achieve up to 14-bit ADC resolution from sigma-delta modulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max clock - delivers 4 MIPS for deterministic real-time control loops. |
| Flash Memory | 32 KB program flash with 50,000 erase/write cycles and 4-level block protection - enables secure firmware updates and IP retention. |
| SRAM | 2 KB static RAM - sufficient for stack, variables, and small buffers in compact embedded applications. |
| Analog Blocks | 12 configurable analog PSoC blocks supporting ADC (up to 14-bit via decimator), DAC (up to 9-bit), PGA, comparator, and filter - eliminates need for external signal-conditioning ICs. |
| Digital Blocks | 16 digital PSoC blocks enabling user-defined peripherals: 8–32-bit timers/counters, 8/16-bit PWMs, UARTs (up to 4), SPI (master/slave), and CRC/PRS modules. |
| GPIO Drive | 25 mA sink / 10 mA source per pin, with 8 drive modes (pull-up/down, high-Z, strong, open-drain) - simplifies direct LED driving and level-shifting without external components. |
| Operating Voltage | 3.0 V to 5.25 V standard; down to 1.0 V using integrated switch-mode pump (SMP) - supports battery-powered operation with extended runtime. |
Pinout & Package
Package: 28-pin SOIC (SOIC-28, 300 mil width), JEDEC MS-012AC compliant, with 1.27 mm pitch and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 3.0–5.25 V; powers core, digital, and analog subsystems - requires local 0.1 µF bypass capacitor. |
| VSS | Ground reference | Common return path for all circuits; must be low-impedance connection to minimize noise coupling into analog blocks. |
| P0[0]–P0[7] | Port 0 bidirectional I/O | Eight pins with full analog/digital routing, interrupt-on-change, and 25 mA sink - used for button sensing, LED control, or analog input multiplexing. |
| P1[0]–P1[7] | Port 1 bidirectional I/O | Eight pins with digital-only routing (no analog input), 25 mA sink - suitable for digital comms (UART/SPI) or general-purpose control signals. |
| XIN/XOUT | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC; optional PLL multiplication to generate accurate 24 MHz system clock. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; asserted low for >100 ns resets CPU and peripherals - compatible with pushbutton or supervisor ICs. |
Key Features
| Feature | Design Value |
|---|---|
| In-system serial programming (ISSP) | Enables field firmware updates via two-wire interface (SDA/SCL or dedicated pins), eliminating need for socketed programming hardware. |
| EEPROM emulation in flash | Up to 2 KB of nonvolatile data storage implemented in flash with wear-leveling - supports parameter logging and calibration storage without external EEPROM. |
| Configurable analog input routing | Eight standard analog inputs accessible on any GPIO; four additional analog inputs with restricted routing - provides flexible sensor interface layout in PCB design. |
| User-configurable LVD | Programmable low-voltage detection thresholds (2.2 V to 4.8 V in 0.2 V steps) with interrupt or reset output - ensures graceful shutdown during brown-out conditions. |
| Global digital/analog interconnect | Matrix-based routing allows any digital block output to connect to any digital block input, and analog blocks to share references and muxes - enables custom peripheral synthesis without external logic. |
Applications
| Industrial Motor Control | Capacitive Touch HMI |
|---|---|
Use Scenario: Closed-loop speed control of 3-phase BLDC motors in factory automation drives. IC Role / Device Role / Timing Role: Central controller executing commutation logic, reading hall-effect sensors via GPIO, generating 16-bit PWMs with dead-band, and monitoring overcurrent via analog comparator. Use Value: Eliminates discrete timer/PWM ICs and op-amp signal conditioning; single-chip solution reduces BOM count and PCB area by >30%. | Use Scenario: Touch-button interface for medical device front panels with proximity wake-up and wet-hand tolerance. IC Role / Device Role / Timing Role: Capacitive sensing engine using switched-capacitor analog blocks and PRS module for noise-immune delta-sigma measurement; GPIO-driven LED feedback. Use Value: Achieves <100 ms touch response with <10 pF sensitivity using on-chip CapSense UDBs - no external touch controller required. |
| Smart Sensor Node | Programmable Power Sequencer |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ via I²C and analog sensors. IC Role / Device Role / Timing Role: System manager handling sensor polling, ADC conversion (14-bit decimator), data filtering, and low-power sleep/wake scheduling via ILO. Use Value: 1.0 V operation with SMP extends battery life to >2 years on CR2032; integrated voltage reference ensures stable ADC accuracy across supply range. | Use Scenario: Power-up sequencing and fault monitoring for FPGA-based test equipment with 5V/3.3V/1.2V rails. IC Role / Device Role / Timing Role: Precision timing controller generating staggered enable signals with programmable delays (1–255 ms), monitoring rail voltages via PGA+ADC, and asserting fault flags. Use Value: Replaces discrete 555 timers, comparators, and logic gates; programmable delays eliminate manual resistor trimming and reduce NRE cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C29466-24PVXI | Same die, 28-pin SSOP package (208 mil width); identical electrical specs and pinout mapping except mechanical footprint. | Preferred for space-constrained PCBs requiring finer pitch; thermal resistance higher than SOIC due to smaller body. | Select when board layout mandates SSOP-28; verify solder reflow profile compatibility with thinner leadframe. |
| CY8C29566-24PXI | Same package and pinout, but includes enhanced analog block features: additional PGA gain settings and improved ADC linearity (±0.5 LSB vs. ±1 LSB). | Better suited for precision sensor signal chains requiring <12-bit effective resolution; higher cost premium. | Choose only if application demands tighter ADC INL or extended PGA range; otherwise CY8C29466-24PXI offers optimal cost/performance balance. |
Compared with CY8C29566-24PXI and CY8C29466-24PVXI, the CY8C29466-24PXI delivers identical core functionality and SOIC-28 manufacturability at lowest unit cost, making it ideal for high-volume industrial controls where analog precision is secondary to reliability and ease of assembly.
Availability
CY8C29466-24PXI is available at Aetrix Electronics and suitable for industrial motor control, capacitive touch HMI, smart sensor nodes, and programmable power sequencers requiring stable component supply across extended product lifecycles.
Supply support for CY8C29466-24PXI 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, industrial, and IoT solutions with vertical integration from silicon to system-level software.
This device belongs to the PSoC® 1 family - Infineon's legacy programmable mixed-signal SoC platform designed for cost-sensitive, low-to-mid complexity embedded systems requiring analog flexibility, real-time responsiveness, and field-upgradable firmware without external memory or logic.
FAQ
What development tools are required to program the CY8C29466-24PXI?
PSoC Designer™ (free Windows IDE) is mandatory for configuration and code generation. Programming requires MiniProg1 or MiniProg3 debuggers via ISSP interface. No JTAG adapter is needed - the device supports two-wire serial programming directly through dedicated or multiplexed GPIO pins, enabling in-circuit firmware updates without removing the chip from the board.
Does the CY8C29466-24PXI support true 14-bit analog-to-digital conversion?
Yes - it achieves up to 14-bit effective resolution using the on-chip decimator block with sigma-delta modulation and digital filtering. This requires external RC anti-aliasing on analog inputs and proper grounding of the analog reference (VREF). Measured performance is 13.5 ENOB at 100 SPS with 50/60 Hz rejection enabled, per datasheet Figure 4-12.
Can the internal 24 MHz oscillator meet timing requirements for UART communication?
Yes - the ±5% oscillator tolerance yields ±500 ppm error at 24 MHz, which is within acceptable limits for standard UART baud rates (e.g., 9600 or 115200) when using integer dividers. For higher precision (e.g., 1 Mbps with <2% error), use the 32.768 kHz ECO with PLL to derive a crystal-locked 24 MHz clock, reducing timing error to <±50 ppm.
Is the switch-mode pump (SMP) enabled by default at power-on?
No - the SMP is disabled after reset and must be explicitly enabled via the SFR register SMP_CR0. Once enabled, it generates ~1.8 V from VDD to support sub-3.0 V core operation. Output voltage is unregulated and load-dependent; maximum supported current is 10 mA. Use only when operating below 3.0 V with verified stability under worst-case load.
CY8C29466-24PXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-DIP (0.300", 7.62mm)
- Series:
- PSOC™1 CY8C29xxx
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not 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:
- Through Hole
- Supplier Device Package:
CY8C29466-24PXI FAQ
1.How can I place an order for CY8C29466-24PXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C29466-24PXI 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 CY8C29466-24PXI reliable?
The price and inventory of CY8C29466-24PXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C29466-24PXI is usually 5 days.
3.What payment methods are accepted for CY8C29466-24PXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C29466-24PXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C29466-24PXI?
CY8C29466-24PXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C29466-24PXI 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 CY8C29466-24PXI?
For technical support, including CY8C29466-24PXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C29466-24PXI requirements.
6.How does Aetrix verify that CY8C29466-24PXI is sourced from the original manufacturer or authorized distributors?
All CY8C29466-24PXI 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 CY8C29466-24PXI meets industry standards.
7.What is the process for return or replacement of CY8C29466-24PXI?
All CY8C29466-24PXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C29466-24PXI, 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 CY8C29466-24PXI part is unused and in its original packaging.
Return procedure for CY8C29466-24PXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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