CY8C29466-24PVXA - 8-Bit M8C PSoC1 MCU 32KB Flash 24MHz | Infineon
MPN: CY8C29466-24PVXA ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.85 | $68.50 |
| 100 | $6.21 | $621.00 |
| 500 | $5.74 | $2,870.00 |
| 1,000 | $5.3 | $5,300.00 |
CY8C29466-24PVXA Overview
A microcontroller (MCU) is a single integrated computer unit containing a CPU, memory, and programmable peripherals on one silicon die. The PSoC1 family belongs to the hypernym hierarchy MCU -> 8-bit microcontroller -> programmable system-on-chip -> mixed-signal controller -> embedded processor. Within that hierarchy the CY8C29xxx devices are the mid-density Flash members of the CY8C27xxx/CY8C29xxx PSoC1 families, distinguished by on-chip configurable analog and digital user modules rather than hard-wired peripherals.
Key features include 24 programmable GPIO pins, 12 programmable analog blocks, an M8C core with up to 24 MHz operation, 32 KB of Flash for application code, and 2 KB of SRAM for data. The device supports 5 V operation, in-system programming via ISSP, and offers 8 Kbytes of Flash that includes ECC-like supervision plus supervisory ROM services for boot and protection.
The CY8C29xxx architecture uses a configurable array of analog and digital blocks routed via an on-chip interconnect, allowing designers to instantiate user modules such as ADCs, filters, timers, PWMs, UARTs, and I2C at runtime. The M8C core delivers deterministic interrupt response and Harvard-style bus architecture optimized for low-power embedded control.
Typical applications include industrial control human-machine interfaces (HMI), white-goods motor control, smart sensor conditioning, USB HID bridges, white-goods user interfaces, and low-power mixed-signal embedded products. The 32 KB Flash and 2 KB SRAM comfortably host small to mid-size applications written in C or assembly with PSoC Designer.
Designers should note the 5 V supply requirement and that the 28-SSOP package has no exposed thermal pad. Place 0.1 µF decoupling close to VDD pins and route PSoC polarity at all GPIO assignments to avoid contention during programming. The CY8C29466 family was discontinued; supply is via the remanufacturer/Infineon last-time-buy channel.
This page synthesizes distributor pricing, drop-in PSoC1 family alternatives, and practical design notes not found in the manufacturer datasheet alone, accelerating redesign and qualification.
Drop-in alternatives for CY8C29466-24PVXA — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with CY8C29466-24PVXA (same form factor and footprint) — differing in Package, Programmable Analog Blocks, Series, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CY8C29466-24PVXI
✅ Drop-In✓ In Stock
$13.78 / Unit
View Datasheet →CY8C29466-24PVXIT
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C29666-24PVXA
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C27443-24PVXIT
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →CY8C29466-24PVXA Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies (formerly Cypress Semiconductor) |
| Series | PSOC™1 CY8C29xxx |
| Core | M8C |
| Data Bus Width | 8 bit |
| Maximum Clock Frequency | 24 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 2 KB |
| Number of I/O Pins | 24 |
| Package | 28-SSOP (5.30 mm width, 0.209 inch) |
| Mounting Type | Surface Mount |
| Supply Voltage | 5 V |
| Programmable Analog Blocks | 12 |
| In-System Programming | Yes (ISSP) |
| Pin/Package Code | PV (28-SSOP), X (Pb-free), A (A-grade) |
CY8C29466-24PVXA Pin Configuration
| Pin 1 | P0[7] — GPIO port 0 bit 7, analog input, ISSP SDATA |
| Pin 2 | P0[6] — GPIO port 0 bit 6, analog input |
| Pin 3 | P0[5] — GPIO port 0 bit 5, analog input |
| Pin 4 | P0[4] — GPIO port 0 bit 4, analog input |
| Pin 5 | P0[3] — GPIO port 0 bit 3, analog input, external AGND ref |
| Pin 6 | P0[2] — GPIO port 0 bit 2, analog input, external Vref |
| Pin 7 | P0[1] — GPIO port 0 bit 1, analog input, ISSP SCLK |
| Pin 8 | P0[0] — GPIO port 0 bit 0, analog input |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — 5 V supply voltage |
| Pin 11 | P2[7] — GPIO port 2 bit 7 |
| Pin 12 | P2[6] — GPIO port 2 bit 6 |
| Pin 13 | P2[5] — GPIO port 2 bit 5 |
| Pin 14 | P2[4] — GPIO port 2 bit 4 |
| Pin 15 | P2[3] — GPIO port 2 bit 3 |
| Pin 16 | P2[2] — GPIO port 2 bit 2 |
| Pin 17 | P2[1] — GPIO port 2 bit 1 |
| Pin 18 | P2[0] — GPIO port 2 bit 0 |
| Pin 19 | P1[7] — GPIO port 1 bit 7, analog block routing |
| Pin 20 | P1[6] — GPIO port 1 bit 6, analog block routing |
| Pin 21 | P1[5] — GPIO port 1 bit 5, analog block routing |
| Pin 22 | P1[4] — GPIO port 1 bit 4, analog block routing |
| Pin 23 | P1[3] — GPIO port 1 bit 3, analog block routing |
| Pin 24 | P1[2] — GPIO port 1 bit 2, analog block routing |
| Pin 25 | P1[1] — GPIO port 1 bit 1, analog block routing, INT0 |
| Pin 26 | P1[0] — GPIO port 1 bit 0, analog block routing, INT1 |
| Pin 27 | XRES — Active-high external reset input |
| Pin 28 | VSS — Ground |
Typical Applications
CY8C29466-24PVXA is suitable for 7 applications: Industrial Control HMI, White Goods Motor Control, Smart Sensor Signal Conditioning, USB HID Bridge, Low-Power Mixed-Signal Embedded, Appliance User Interface, Test & Measurement Front End.
Industrial Control HMI
The CY8C29466-24PVXA fits industrial HMI panels because it integrates 12 programmable analog blocks that can scan keypad matrices and read resistive touch overlays without external glue logic. At 24 MHz the M8C core executes key-debounce, LED/PWM dimming, and LCD-driving user modules while leaving 32 KB of Flash for menu state machines. The 24 GPIO pins are sufficient to multiplex 4x5 key scans plus a character LCD bus and status LEDs. According to the PSoC1 CY8C29xxx datasheet, the configurable analog blocks can implement scanned resistance measurement with on-chip PGA - critical for USB-powered HMI that must avoid external precision parts.
Recommended
White Goods Motor Control
The CY8C29466-24PVXA is a strong fit for white-goods motor-control sub-systems such as washing-machine drain pumps, dishwasher dispenser drives, and refrigerator damper actuators. The 12 programmable analog blocks can implement back-EMF sensing and zero-cross detection, while the digital PSoC blocks generate PWMs for TRIAC or FET drivers at 24 MHz resolution. The 32 KB Flash and 2 KB SRAM comfortably host state-based control loops in C with PSoC Designer user modules. According to Infineon's CY8C29xxx datasheet, the on-chip configurable architecture avoids external op-amps and timers, reducing BOM cost.
Recommended
Smart Sensor Signal Conditioning
The CY8C29466-24PVXA is ideal for smart sensor signal conditioning because the 12 configurable PSoC analog blocks can implement instrumentation amplifiers, active filters, and delta-sigma ADC front-ends on-chip. This eliminates external precision components in transducer conditioning chains. At 24 MHz the M8C core can execute calibration tables, linearization, and digital filtering in firmware, while 32 KB Flash accommodates sensor-specific look-up data. According to the CY8C29xxx datasheet, the on-chip reference and gain-stage configurability enable a 16-bit-effective signal chain for thermocouple and bridge sensors.
Recommended
USB HID Bridge
The CY8C29466-24PVXA serves as a low-cost USB HID bridge in industrial peripherals because the configurable digital PSoC blocks can implement full-speed USB 1.1 device logic alongside the M8C core. Designers can pair it with external USB transceivers or use it as the boot HID interface for legacy equipment. The 32 KB Flash is sufficient for HID class drivers, and the 2 KB SRAM handles endpoint buffering. According to the CY8C29xxx datasheet, the M8C core's deterministic interrupt latency makes HID timing reproducible across product variants.
Recommended
Low-Power Mixed-Signal Embedded
The CY8C29466-24PVXA fits battery-powered mixed-signal embedded designs that combine sensor reading, local computation, and serial reporting. The 12 analog blocks plus M8C core deliver signal conditioning and ADC functions at low MHz clocks, which minimizes active current, and the Flash supervisory services support sleep/wake for duty-cycled sensing. With 32 KB Flash and 2 KB SRAM the device can hold a small RTOS or a state machine plus data logging buffer. According to the Infineon CY8C29xxx datasheet, sleep current and configurable clock dividers enable battery-life targets in the 1-3 year range for slow-cycle sensor nodes.
Recommended
Appliance User Interface
The CY8C29466-24PVXA targets appliance user-interface boards with capacitive touch, LED animation, and display drivers all on one die. The M8C core at 24 MHz services CapSense user-module touch scanning plus LED PWM channels, while the 24 GPIO pins drive character displays, buzzer, and rotary encoders. The 32 KB Flash allows rich menu logic and capacitive touch firmware, with 2 KB SRAM for display buffering. According to the PSoC1 CY8C29xxx datasheet, on-chip CapSense user modules replace dedicated touch ICs, reducing BOM and PCB area.
Recommended
Test & Measurement Front End
The CY8C29466-24PVXA can act as a configurable front-end for low-cost test and measurement instruments that benefit from on-chip signal conditioning. Designers instantiate programmable gain amplifiers, filters, and ADC paths as PSoC user modules, then route measurements over UART to a host PC. The 24 MHz core supports real-time RMS calculation and statistics, with 32 KB Flash for instrument-specific calibration. According to the CY8C29xxx datasheet, the configurable architecture reduces the analog BOM count versus fixed-function MCUs and accelerates prototype iteration.
Recommended
Recommended Products Summary
Engineering reference data for CY8C29466-24PVXA — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CY8C29466-24PVXI | CY8C29466-24PVXIT | CY8C29666-24PVXA | CY8C27443-24PVXIT |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Core | M8C 8-bit | M8C 8-bit | M8C 8-bit | M8C 8-bit | M8C 8-bit |
| Max Clock Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 16 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 256 B |
| GPIO Count | 24 | 24 | 24 | 24 | 24 |
| Programmable Analog Blocks | 12 | 12 | 12 | 12 | 12 |
| Temperature Grade | Commercial (A-grade) | Industrial (I-grade) | Industrial (I-grade) | Commercial (A-grade) | Industrial (I-grade) |
| Lifecycle | Last-time-buy | Last-time-buy | Last-time-buy | Last-time-buy | Active (in Site MPN list) |
Key Differentiators
- 32 KB Flash in 28-SSOP with 12 programmable analog blocks (vs CY8C27443-24PVXIT)
- Identical footprint upgrade path to 64 KB Flash (vs CY8C29666-24PVXA)
- PSoC1 configurable architecture replaces external analog parts (vs Fixed-function 8-bit MCU families)
Design Notes
Place a 0.1 µF ceramic decoupling capacitor as close as possible to each VDD/VSS pair on the CY8C29466-24PVXA, with a 10 µF bulk capacitor at the regulator output. The PSoC1 CY8C29xxx family datasheet specifies 5 V ±10% supply tolerance; using a low-noise LDO such as TPS7A4701 downstream of a switching pre-regulator avoids injecting PSoC analog reference noise. Estimated: with all digital blocks idle the device draws roughly 4-6 mA at 24 MHz; full-load with all 12 analog blocks active can approach 25 mA.
Route analog and digital PSoC blocks on separate copper pours where possible, joining analog and digital grounds at a single point near the VSS pin. Keep the XRES pull-up resistor within 5 mm of pin 27 and isolate the ISSP SDATA and SCLK traces to prevent programming contention. Place the external Vref bypass capacitor adjacent to pin 6 (P0[2]) when using the internal analog reference. Estimated trace length < 25 mm for analog blocks reduces digital coupling.
Do not drive PSoC block outputs to contention during reset; the CY8C29xxx datasheet requires GPIO initialization in firmware before peripheral activation to prevent bus conflicts on the analog/digital interconnect array. Verify the operating temperature grade - the 'A' suffix in CY8C29466-24PVXA denotes commercial temperature; industrial temperature applications must select the I-grade CY8C29466-24PVXI variant. ISSP programming requires SDATA and SCLK to be free of external pull-downs during reset.
Compliance Information
RoHS/REACH compliance inferred from the 'X' suffix in the order code per Infineon/Cypress part numbering convention; AEC-Q100 not applicable for general-purpose 8-bit MCU. Verify latest compliance documentation with Infineon at order placement.
